WO2010010106A1 - Derives aminophosphiniques utiles dans le traitement de la douleur - Google Patents
Derives aminophosphiniques utiles dans le traitement de la douleur Download PDFInfo
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- WO2010010106A1 WO2010010106A1 PCT/EP2009/059394 EP2009059394W WO2010010106A1 WO 2010010106 A1 WO2010010106 A1 WO 2010010106A1 EP 2009059394 W EP2009059394 W EP 2009059394W WO 2010010106 A1 WO2010010106 A1 WO 2010010106A1
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- 0 CC(C)C(OC(C)OC(NC(C)P(C[C@@](Cc(cc1)ccc1-c1ccccc1)C(N*[C@@](C)C(O)=O)=O)(O)=O)=O)=O Chemical compound CC(C)C(OC(C)OC(NC(C)P(C[C@@](Cc(cc1)ccc1-c1ccccc1)C(N*[C@@](C)C(O)=O)=O)(O)=O)=O)=O 0.000 description 1
- OEUOZJSBSDXKLY-NNKZFNQJSA-N CC(C)C(OC(C)OC(N[C@@H](C)P(CC(CC1)(CCN1C(C)=O)C(N[C@@H](C)C(O)=O)=O)(O)=O)=O)=O Chemical compound CC(C)C(OC(C)OC(N[C@@H](C)P(CC(CC1)(CCN1C(C)=O)C(N[C@@H](C)C(O)=O)=O)(O)=O)=O)=O OEUOZJSBSDXKLY-NNKZFNQJSA-N 0.000 description 1
- RAOXRFRIWSGKDX-FGGYKSMFSA-N CC(C)C(OC(C)OC(N[C@@H](c1ccccc1)P(C[C@@H](Cc(cc1)ccc1-c1c[s]cc1)C(N[C@@H](CO)C(O)=O)=O)(O)=O)=O)=O Chemical compound CC(C)C(OC(C)OC(N[C@@H](c1ccccc1)P(C[C@@H](Cc(cc1)ccc1-c1c[s]cc1)C(N[C@@H](CO)C(O)=O)=O)(O)=O)=O)=O RAOXRFRIWSGKDX-FGGYKSMFSA-N 0.000 description 1
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- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/30—Phosphinic acids [R2P(=O)(OH)]; Thiophosphinic acids ; [R2P(=X1)(X2H) (X1, X2 are each independently O, S or Se)]
- C07F9/306—Arylalkanephosphinic acids, e.g. Ar-(CH2)n-P(=X)(R)(XH), (X = O,S, Se; n>=1)
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- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/30—Phosphinic acids [R2P(=O)(OH)]; Thiophosphinic acids ; [R2P(=X1)(X2H) (X1, X2 are each independently O, S or Se)]
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- A61K31/403—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil condensed with carbocyclic rings, e.g. carbazole
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- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/30—Phosphinic acids [R2P(=O)(OH)]; Thiophosphinic acids ; [R2P(=X1)(X2H) (X1, X2 are each independently O, S or Se)]
- C07F9/301—Acyclic saturated acids which can have further substituents on alkyl
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- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/30—Phosphinic acids [R2P(=O)(OH)]; Thiophosphinic acids ; [R2P(=X1)(X2H) (X1, X2 are each independently O, S or Se)]
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- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/30—Phosphinic acids [R2P(=O)(OH)]; Thiophosphinic acids ; [R2P(=X1)(X2H) (X1, X2 are each independently O, S or Se)]
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- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/30—Phosphinic acids [R2P(=O)(OH)]; Thiophosphinic acids ; [R2P(=X1)(X2H) (X1, X2 are each independently O, S or Se)]
- C07F9/32—Esters thereof
- C07F9/3205—Esters thereof the acid moiety containing a substituent or a structure which is considered as characteristic
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- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/30—Phosphinic acids [R2P(=O)(OH)]; Thiophosphinic acids ; [R2P(=X1)(X2H) (X1, X2 are each independently O, S or Se)]
- C07F9/32—Esters thereof
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- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/48—Phosphonous acids [RP(OH)2] including [RHP(=O)(OH)]; Thiophosphonous acids including [RP(SH)2], [RHP(=S)(SH)]; Derivatives thereof
- C07F9/4808—Phosphonous acids [RP(OH)2] including [RHP(=O)(OH)]; Thiophosphonous acids including [RP(SH)2], [RHP(=S)(SH)]; Derivatives thereof the acid moiety containing a substituent or structure which is considered as characteristic
- C07F9/4816—Acyclic saturated acids or derivatices which can have further substituents on alkyl
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- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/553—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having one nitrogen atom as the only ring hetero atom
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- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6553—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having sulfur atoms, with or without selenium or tellurium atoms, as the only ring hetero atoms
- C07F9/655345—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having sulfur atoms, with or without selenium or tellurium atoms, as the only ring hetero atoms the sulfur atom being part of a five-membered ring
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Definitions
- the present invention relates to aminophosphinic compounds, process for their preparation and their use in the treatment of pain such as neuropathic, neuroinflammatory, post-operative pain or acute pain due to excess nociception.
- Enkephalins are pentapeptides initially found in mammalian brain (Hugues Nature 1975, 258, 577). Enkephalins bind mainly to two classes of receptors, the ⁇ and ⁇ receptors (Lord et al., Nature 1977, 267,495), whose functions and locations are different (Waksman et al, Proc Natl Acad Sci 1986, 83,152 ).
- enkephalins (Tyr-Gly-Gly-Phe-Met and Tyr-Gly-Gly-Phe-Leu) are physiologically inactivated by two zinc metallopeptidases, neprilysin (EC 3.4.24.11, NEP which cleaves the Gly 3 -Phe 4 bond (Malfroy et al., Nature 1978, 276, 523) and aminopeptidase N (EC 3.4.11.2, APN) which cleaves the Tyr'-Gly 2 bond of these peptides (Waksman et al. Eur Eur J. Pharmacol 1985, 117, 233, Roques et al., Pharmacological Reviews 1993, 45, 87-146).
- the preproenkephalin gene is expressed in the dorsal ganglia of the spinal nerves, then transported to the periphery at the nociceptors (Antunes-Bras J et al Neuroscience 2001, 103, 1073-1083), ii) the enkephalins are expressed in large amounts in immune cells attracted to the injured tissues (Przewlocki R et al Neuroscience 1992, 48 (2), 491-500) and released from these cells at the lesion site (Rittner HL et al. J.
- the first family corresponds to amino acid derivatives which combine, by a disulfide bridge, a potent inhibitor of NEP and a potent inhibitor of APN (FR 2 651 229, J. Med Chem 1992, 35, 2473). These molecules exhibit excellent antinociceptive activity intravenously (Jv). A new generation of more soluble molecules has made it possible to obtain compounds with good oral activity (FR 2 892 413, FR 2 892 414 and FR 08/53092).
- the second family includes compounds that jointly inhibit AFN and NEP. They are either hydroxamate-functional compounds (FR 2 518 088 and FR 2 605 004) or aminophosphinic compounds (FR 2 755 135 and FR 2 777 780).
- hydroxamate functional compounds described in these documents exhibit excellent in vitro and in vivo activity after intracerebroventricular administration. This has been particularly demonstrated in the publications (Eur J Pharmacol 1984, 102, 525-528, Eur J. Pharmacol 1989, 165, 199-207, Eur J. Pharmacol 1991, 192, 253-262). Significant activity was also observed after iv administration in an arthritic rat model (Brain Research 1989, 497, 94-101).
- the aminophosphinic compounds described in applications FR 2 755 135 and FR 2 777 780 have, at the level of the terminal nitrogen atom, either a free amine function or an imine function.
- the compounds having such an imine function do not inhibit the activity of the two peptidases NEP and APN.
- the inventors have discovered that to ensure the activity it is important that the pro-drug regenerates a free amino function, which is not possible in the presence of an imine, under physiological conditions.
- the phosphinic acid function is left free or is protected by a protective group which is an alkyl or a benzyl. But it has been further described that the activity decreases when the phosphinic acid function is unprotected (Hecker S.J. and Erion M.D.Med.
- SATE S-acylthioethyl ester
- the SATE group can not be used in human therapy because of the toxicity of the cyclic product (ethylene sulphide) generated by the hydrolysis of thioester in the human body (Hecker SJ and Erion MDJ Med Chem 2008, 51, 2328-2345).
- the cyclic product ethylene sulphide
- the inventors have furthermore noted, for the first time, that the presence of a -CH (X) -OC (O) -Y group, protecting the phosphinic acid function, and a free amine function leads to the formation of an inactive transfer product (formation of a -NC (O) -Y amide which is not hydrolyzable, see Example 13).
- One of the objects of the invention is therefore to provide novel stable aminophosphinic compounds capable of inhibiting both enzyme activities together with a long duration of action (ie at least 2h).
- a long duration of action ie at least 2h.
- Another object of the invention is to provide novel compounds which exhibit the properties of morphine substances, in particular a strong analgesic effect on the different types of pain (acute, inflammatory, neuropathic, etc.), beneficial effects on behavior.
- Another object of the invention is to provide associations between the compounds of the present invention and compounds known for their antinociceptive properties but having high doses of adverse side effects. These associations relate more particularly to morphine and its derivatives, THC (tetrahydrocannabinol) and its derivatives as well as derivatives of Gaba such as Gabapentin or Pregabalin. High potentiation of antinociceptive responses obtained by combining subactive doses of compounds claimed in the present application and one of the aforementioned analgesics (morphine, THC, Gabapentin).
- the compounds according to the invention may advantageously be associated, in the context of the treatment of neuropathic pain, with one of the botulinum toxins, injected locally (Ranoux D.
- the compounds of the invention may also be associated with purinergic receptor antagonists, in particular the P2X3 receptor, of which one of the selective antagonist is A-317491 (Wu et al., 2004, Eur J. Pharm., 504). , 45-53)
- the invention thus more particularly relates to compounds corresponding to the following general formula (I):
- R 5 represents a hydrogen atom and R 4 represents:
- a phenyl or a benzyl optionally substituted on the phenyl nucleus by: 1 to 5 halogen atom (s) such as fluorine or bromine; an OR 15 or SR 15 group , in which R 15 represents a hydrogen atom, a benzyl group or a linear or branched, saturated or unsaturated hydrocarbon-based chain containing from 1 to 4 carbon atoms; an amino group; o a CF 3 group; a phenyl group; or o a 5- or 6-membered heteroaromatic ring;
- a 5- or 6-membered heteroaromatic ring comprising 1 or 2 heteroatoms selected from oxygen, nitrogen and sulfur, a nitrogen atom capable of being oxidized in the form of N-oxide; or - a methylene group substituted with a 5- or 6-membered heterocycle, saturated or aromatic, containing one or more heteroatoms chosen from sulfur and nitrogen, optionally oxidized in the form of N-oxide or S-oxide; or R 4 and R5 together form, with the carbon that carries them:
- a piperidine ring the nitrogen being in the 4-position and being optionally substituted with: a -SO 2 -Ph group;
- a phenyl or benzyl optionally substituted by one or more atom (s) halogen, alkyl C l -C 4 or alkoxy
- An aromatic heterocycle such as a pyridine or pyrimidine, optionally substituted with alkyl to C 4 alkoxy or C l -C 4;
- D represents:
- a hydrocarbon chain saturated or unsaturated, linear or branched, containing from 1 to 6 carbon atoms, and optionally substituted with: a group OR 16 , SR 16 , SOR 16 , in which R 16 represents a hydrogen atom, a benzyl group or a hydrocarbon chain, saturated or unsaturated, linear or branched, having from 1 to 4 carbon atoms; o a COO-Bn or COOH group; o an SO3H group; or an amino group; a phenyl optionally substituted by one or more halogen atom (s), such as fluorine or bromine, or a group: o CF 3 ; o OR 17 wherein R 17 represents a hydrogen atom, a benzyl group or a hydrocarbon chain, saturated or unsaturated, linear or branched, having 1 to 4 carbon atoms; or o benzyl, or
- a benzyl optionally substituted on the phenyl ring by: one or more halogen atom (s), such as fluorine or bromine; o a CF3 group; a group OR 17 , in which R 17 represents a hydrogen atom, a benzyl group or a linear or branched, saturated or unsaturated hydrocarbon-based chain containing from 1 to 4 carbon atoms; or o a phenyl group; and
- R 7 represents a radical selected from the group consisting of a hydrogen atom, a benzyl, a C 2 -C 4 alkyl, -CHR 18 -COOR 19 , -CHR 18 -
- R 18 and R 19 represent, independently of one another, an alkyl, aryl, arylalkyl, cycloalkyl or cycloheteroalkyl group, heteroalkyl, heteroaryl or heteroarylalkyl.
- the term "pharmaceutically acceptable” means that which is useful in the preparation of a pharmaceutical composition which is generally safe, non-toxic and neither bio-logical nor otherwise undesirable and which is acceptable for veterinary use as well as human pharmaceutical.
- salts which are pharmaceutically acceptable, as defined herein, and which possess the desired pharmacological activity of the parent compound.
- these are salts obtained with a mineral or organic base.
- the salt formed corresponds to: either the replacement of an acidic proton by a metal ion, for example an alkali metal ion (Na + , K + or Li + for example), an alkaline earth metal ion (as Ca 2+ or Mg 2+ ) or an aluminum ion, or to the coordination of this acidic proton with an organic or inorganic base.
- Acceptable organic bases include amines such as ammonia, diethanolamine, ethanolamine, N-methylglucamine, triethanolamine, triethylamine, tromethamine and the like.
- Acceptable inorganic bases include aluminum hydroxide, calcium hydroxide, lithium hydroxide (lithium hydroxide), potassium hydroxide (potassium hydroxide), sodium carbonate and sodium hydroxide (sodium hydroxide).
- the pharmaceutically acceptable salts of the compounds of the invention will be salts obtained with a pharmaceutically acceptable inorganic or organic base, such as lithium hydroxide, sodium hydroxide or potassium hydroxide.
- a pharmaceutically acceptable inorganic or organic base such as lithium hydroxide, sodium hydroxide or potassium hydroxide.
- ammonia a tertiary amine of formula NRaRbR O , where Ra, Rb and R 0 represent, independently of one another, an alkyl group as defined below, such as triethylamine, or a basic amino acid such as lysine; or arginine and their derivatives.
- unsaturated is meant, within the meaning of the present invention, that the hydrocarbon chain comprises one or more unsaturation (s).
- unsaturation is meant, in the sense of the present invention, a double or a triple bond.
- halogen atom means a fluorine, chlorine, bromine or iodine atom.
- it is a fluorine, bromine or chlorine atom.
- it is a fluorine or bromine atom, and preferably fluorine.
- amino group is meant, within the meaning of the present invention, a group of formula -NR'R ", where R 'and R" represent, independently of one another, a hydrogen atom or a saturated or unsaturated hydrocarbon group, linear, branched or cyclic, having from 1 to 6, preferably from 1 to 4, carbon atoms, R 'and R "not being able to represent at the same time a hydrogen atom, or R' and R "form together, with the nitrogen atom which carries them, a 5- or 6-membered heterocycle, saturated or unsaturated, and having no other heteroatom other than the nitrogen which bears the two radicals R 'and R"
- the amino group may be -NHMe, -NHEt, -NHPr, -NHiPr, -NHBu, -NHiBu, -NHtBu, piperidinyl or pyrrolidinyl.
- aryl group is intended to mean an aromatic group, preferably containing from 5 to 10 carbon atoms, unless otherwise specified, and comprising one or more contiguous rings, for example a phenyl group or naphthyl.
- it is phenyl.
- heteroaryl group is meant, within the meaning of the present invention, any aryl group as defined above in which one or more carbon atom (s) has (have) been replaced by one or more heteroatom (s). (s), advantageously 1 to 4 and even more advantageously 1 to 2, such as, for example, sulfur, nitrogen or oxygen atoms, a nitrogen atom possibly being oxidized in the form of N-oxide.
- heteroaryl groups are furyl, thienyl, pyrrolyl, pyridinyl, pyrimidyl, pyrazolyl, imidazolyl, tetrazolyl or indyl groups.
- heteroaryl group as defined above comprising only one 5 or 6-membered ring.
- heteroaryl group as defined above comprising only one 5 or 6-membered ring.
- heterocycle is intended to mean a hydrocarbon ring, advantageously having 5 or 6 ring members, one or more carbon atoms of which have been replaced by one or more heteroatoms.
- the heterocycle may in particular be a group: piperidinyl, pyrrolidinyl, pyrrolyl, thienyl, pyrrazolyl, imidazolyl, pyridinyl , pyridazinyl, pyrimidinyl, piperazinyl, thiadiazolyl, tetrahydrothienyl or thiazolyl.
- alkyl is intended to mean a linear or branched saturated hydrocarbon-based chain containing from 1 to 6 carbon atoms, unless otherwise specified. It is in particular methyl, ethyl, n-propyl, isopropyl, n-butyl, iso-butyl, sec-butyl, tert-butyl, n-pentyl, n-hexyl.
- heteroalkyl is meant, in the sense of the present invention, a saturated hydrocarbon chain, linear or branched, having from 1 to 5 carbon atoms and 1 or 2 heteroatoms, such as for example sulfur, nitrogen or oxygen atoms. .
- C 1 -C 4 acyl is meant, within the meaning of the present invention, an alkyl group as defined above, comprising from 1 to 4 carbon atoms, bonded to the molecule by means of a CO grouping. It may be in particular an acetyl, formyl and propionyl group.
- cycloalkyl is meant, in the sense of the present invention, a saturated hydrocarbon ring having from 3 to 7, preferably from 5 to 7, carbon atoms, in particular cyclohexyl, cyclopentyl or cycloheptyl.
- cycloheteroalkyl means a cycloalkyl group as defined above in which one or more carbon atoms has (have) been replaced by one or more heteroatoms ( s), advantageously 1 to 4 and even more advantageously 1 to 2, such as, for example, sulfur, nitrogen or oxygen atoms, the sulfur and nitrogen atoms possibly being optionally oxidized as N-oxide and S-oxide. It may be in particular a piperidinyl, pyrrolidinyl, tetrahydrofuryl, tetrahydrothenyl, morpholinyl or piperazinyl group.
- alkoxy means an alkyl group as defined above bonded to the molecule via an oxygen atom. It is in particular a methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, iso-butoxy, sec-butoxy or tert-butoxy group.
- arylalkyl means an aryl group as defined above bonded to the molecule via an alkyl group as defined above. It is in particular a benzyl group (Bn).
- heteroarylalkyl is meant, in the sense of the present invention, a heteroaryl group as defined above bonded to the molecule through an alkyl group as defined above. It is in particular a thenylmethyl or furylmethyl group.
- R 8 and R 9 represent, independently of one another, a hydrogen atom and an alkyl group; and R 10 represents an alkyl group.
- the radical R 2 represents: an aryl group optionally substituted by one or more halogen atom (s); or a hydrocarbon chain, saturated or unsaturated, and preferably saturated, linear or branched, having 1 to 6 carbon atoms, and optionally substituted with a group OR 11 , SR 11 or SOR 11 (R 11 being as defined above ) or by a phenyl optionally itself substituted by a halogen atom such as a fluorine atom.
- the radical R 2 represents an alkyl, aryl or arylalkyl or heteroarylalkyl group, in particular a methyl, phenyl or -CH 2 CH 2 Ph group.
- the radical R3 represents a hydrogen atom.
- R 5 represents a hydrogen atom and R 4 represents a benzyl group optionally substituted with 1 to 5 halogen atom (s) such as fluorine or bromine, a phenyl or a 5- or 6-membered heteroaromatic ring.
- R 5 represents a hydrogen atom and R 4 represents a benzyl group substituted in the para position with a halogen atom, such as a bromine atom, or with a phenyl.
- R 4 and R 5 together with the carbon which carries them form a cyclohexane or a piperidine ring, the nitrogen being in the 4-position and being optionally substituted as defined above for these radicals.
- the substituents may be a -SO 2 -Ph group, a C 1 -C 4 acyl group, a phenyl group).
- the radical R 6 represents a hydrocarbon chain, saturated or unsaturated, preferably saturated, linear or branched, having from 1 to 6 carbon atoms, and optionally substituted by a group SO3H or COOR 16 .
- it is an alkyl group such as a methyl group.
- it is a hydrogen atom or a benzyl group.
- R 2 represents an alkyl group, phenyl or -CH 2 CH 2 Ph; - R3 represents a hydrogen atom;
- R5 represents a hydrogen atom and R 4 represents a benzyl group substituted in the para position by a halogen atom (bromine), or phenyl; or R 4 and R 5 together with the carbon which carries them a cyclohexane or a piperidine ring, the nitrogen being in the 4-position and being optionally substituted with a -SO 2 -Ph group, an acyl group
- R 6 represents an alkyl group
- the compound of the invention is chosen from the following compounds:
- the compounds of formula (I) of the invention have potentially 3 centers of asymmetry, ie the carbons bearing the respective radicals R 2 , R 5 and R 6 interacting with the active site of the two enzymes.
- these 3 asymmetric centers are resolved and of respective absolute configuration optimizing the properties of the compounds of the invention, namely: the carbon atom carrying the radical R 2 is of R configuration (enantiomeric excess greater than 90% );
- the carbon atom carrying the radical R 5 is of S configuration (ee>90%);
- the carbon atom carrying the radical R 6 is of S configuration (ee> 90%). If necessary, the configuration of the phosphinic acid is left free (one can have one enantiomer, the other enantiomer or a racemic mixture).
- This reaction is carried out by the action of a coupling agent such as 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride (EDC) or 2- (1H-benzotriazol-1-yl) -1,3 , 3-tetramethyluronium tetrafluoroborate (TBTU), in the presence in particular of a tertiary amine such as diisopropylethylamine (DIEA).
- DIEA diisopropylethylamine
- DIEA diisopropylethylamine
- the aminophosphinic compounds (VI) are obtained in three stages from the compounds (II) and (III):
- Z represents a benzyloxycarbonyl group.
- the first step consists of condensing the compounds (II) and (III) in the presence of bis-trimethylsilyl acetamide to give the compound (IV).
- the reaction is advantageously carried out at a temperature of between 70 and 120 ° C., without a solvent.
- the compound (IV) is obtained in the form of a mixture of two diastereoisomers (2R, 4S) / (2R, 4R) in proportions of approximately 65/35.
- the majority (2R, 4S) stereoisomer is then separated from the stereoisomer (2R, 4R) by precipitation in an organic solvent such as ethyl acetate, diethyl ether, isopropanol, acetonitrile or a mixture of those and preferably in ethyl acetate, followed or not by additional purification by recrystallization.
- the compound (IV) thus obtained is then successively deprotected in the C-terminal position by saponification (NaOH) and N-terminal by the action of HBrZCH 3 CO 2 H to give a compound (V).
- the compound (V) is then condensed with an acyloxyalkyl (N- 2- phenyl) carbonate, prepared according to Alexander et al., 1988, J. Med. Chem., 31,318, or with acyloxyalkylsuccinyl carbonate, prepared according to Sun et al. Bioorg. Med. Chem. Lett. 2001, 11, 1875, in dioxane in the presence of NaHCO 3 .
- the compounds (Ia) can be synthesized by condensation of (VII) on the intermediate (XI) (Z-NH-CH (R 2 ) P (O) OH-CH 2 CH (R 4 ) COOH) obtained by alkaline hydrolysis of the benzyl ester of (IV), under the coupling conditions described above (EDCI or TBTU in the presence of DIEA in DMF).
- Compound (XII) is then obtained, which after deprotection of the Z group leads to the compound (XIII). This leads to (Ia) by the methods described above during the transformation of (V) into (VI).
- optically pure compounds (II) of configuration (R) are prepared from the aldehydes (VIII) following the synthesis protocol and the resolution method described by Baylis et al. in J. Chem. Soc. Perkin Trans I (1984), 2845.
- Z represents a benzyloxycarbonyl group.
- the benzyl ester of the acrylates (III) is prepared from the corresponding acrylic acids (X) by the action of benzyl bromide in the presence of K 2 CO 3 in acetonitrile at 80 ° C.
- the acids (X) are obtained by a classic protocol, well known to those skilled in the art, which comprises the following steps: condensation of an aldehyde (IX) with diethylmalonate (step 1), reduction of the double bond and saponification of the ester functions (step 2: I) NaBH 4 , 2 ) OH ⁇ 3) H +) and Mannich reaction (step 3).
- Z represents a benzyloxycarbonyl group.
- the compounds (XIV) are prepared from the corresponding carboxylic acid of formula CH (R 4 ) (Rs) -CO 2 H. After esterification in the form of t-butyl ester to give CH (R 4 ) (Rs) -CO 2 IBu (XV), the treatment with paraformaldehyde in the presence of lithium diisopropylamide (iPr 2 NLi) leads to the alcohol ester HOCH 2 -C (R 4 ) (Rs) -COOtBu. The alcohol function is then activated as mesylate or triflate to yield compound (XIV).
- the subject of the present invention is a process for preparing a compound of formula (I) as defined above, according to the following steps:
- a hydrolysis step (saponification or hydrogenolysis) of the -COOR 7 function; - separation of the reaction medium of the compound (I) obtained in one of the preceding steps.
- This process may be followed by any additional substitution and / or protection / deprotection reactions well known to those skilled in the art.
- the separation step of the reaction medium can be carried out by methods well known to those skilled in the art, such as, for example, by extraction, evaporation of the solvent or by precipitation and filtration.
- the compound thus obtained can then be purified if necessary by techniques well known to those skilled in the art, such as by recrystallization if the compound is crystalline, by distillation, by column chromatography on silica gel or by high performance liquid chromatography ( HPLC).
- the subject of the present invention is also a compound of formula (I) as defined above for its use as a medicament, in particular intended for the treatment of pain and in particular (1) neuropathic or neuroinflammatory pain or (2) ) acute pain (especially acute pain).
- neuroinflammatory pain is meant more particularly, but in a non-limiting manner, pain caused by type I or II diabetes mellitus, viral or retroviral infection, chemotherapy for cancer, radiotherapy, intervention. including the illusion of amputees and sequelae of mastectomy, alcoholism, facial neuralgia, trauma such as brachial plexus syndrome, radiculopathy or radiculagia such as sciatica, cruralgia or syndrome thoracobrachial parade, fibromyalgia, restless leg syndrome, inflammatory joint pain caused by arthritis or an acute phase of osteoarthritis, degenerative joint pain caused by osteoarthritis, or low back pain .
- neuropathic and neuroinflammatory pains are characterized by: i) an excess of nociception called “hyperalgesia", evaluated by appropriate tests on predictive animal models such as the Plantar test or the hot plate; ii) an allodynia which corresponds to a painful feeling coming from a region which is not concerned by the original nociceptive stimulus and whose reduction is measured in particular by the Von Frey test.
- acute pain refers in particular to postoperative pain, pain in a person with cancer, pain due to lesions of the peripheral tissues causing an excess of painful impulses in the nervous system.
- the invention also relates to the use of a compound of the invention for the manufacture of a medicament for the treatment of pain and in particular (1) neuropathic or neuro-inflammatory pain or (2) pain.
- the invention also relates to a method for the treatment of pain and in particular (1) neuropathic or neuroinflammatory pain or (2) acute pain, comprising administering an effective amount of at least one compound of the invention to a patient in need.
- the present invention also relates to a pharmaceutical composition
- a pharmaceutical composition comprising at least one compound of formula (I) as defined above and at least one pharmaceutically acceptable vehicle.
- the compounds according to the invention can be administered orally, sublingually, parenterally, subcutaneously, pulmonally, nasally, intramuscularly, intravenously, intrathecally, intra-articularly or transdermally.
- the active ingredient can be administered in unit dosage forms, in admixture with conventional pharmaceutical carriers, to animals or humans.
- composition may comprise, in the same formulation or in combination in a different form, at least one other active ingredient, in particular an analgesic chosen from the group consisting of morphine and its derivatives, tetrahydrocannabinol and its derivatives, derivatives of gab (Gabapentin or pregabalin), botulinum toxin (botulinum toxin A) or a purinergic receptor antagonist (P2X3 receptor).
- an analgesic chosen from the group consisting of morphine and its derivatives, tetrahydrocannabinol and its derivatives, derivatives of gab (Gabapentin or pregabalin), botulinum toxin (botulinum toxin A) or a purinergic receptor antagonist (P2X3 receptor).
- the present invention also relates to a pharmaceutical composition
- a pharmaceutical composition comprising:
- compositions and the compounds of formula (I) can be used as medicaments
- the compounds are intended for the treatment of neuropathic or neuroinflammatory pain and are administered orally.
- the pharmaceutical composition will therefore preferably be formulated for oral administration.
- Suitable unit dosage forms include tablets, capsules, powders, granules and oral solutions or suspensions; the main active ingredient is mixed with a suitable pharmaceutical carrier.
- the formulation may be such that it has prolonged or delayed activity and continuously releases a predetermined amount of active ingredient.
- the inventors have found that the compounds, administered orally, do not cross the blood-brain barrier (BBB) and thus do not enter the brain. Under these conditions, the possible undesirable side effects, even small ones, of endogenous cerebral opioids (enkephalins) (F. Noble and BP Roques, Exp Op Op Ther Targets, 2007, 11, 145-159) which could come from the Activation of the opioid receptors of the brain by these enkephalins protected from inactivation by the compounds of the invention are totally excluded.
- This composition may comprise at least one other active ingredient.
- this pharmaceutical composition may comprise an analgesic chosen from the group consisting of Gaba derivatives such as Gabapentin or pregabalin, or a P2X3 purinergic receptor antagonist and botulinum toxins such as botulinum toxin A.
- analgesic chosen from the group consisting of Gaba derivatives such as Gabapentin or pregabalin, or a P2X3 purinergic receptor antagonist and botulinum toxins such as botulinum toxin A.
- an analgesic chosen from the group consisting of Gaba derivatives such as Gabapentin or pregabalin, or a P2X3 purinergic receptor antagonist and botulinum toxins such as botulinum toxin A.
- Formula (I) compounds formulated for oral administration may be used in combination with locally injected botulinum toxin.
- the compounds are intended for the treatment of nociceptive pain and are administered by a route other than by the oral route, for example by sublingual, parenteral, subcutaneous, nasal, intramuscular pulmonary or intravenous route. , intrathecally, intra-articularly or transdermally, particularly intravenously.
- the active ingredient can be administered in unit dosage forms, in admixture with conventional pharmaceutical carriers, to animals or humans.
- the pharmaceutical composition will therefore be formulated for intravenous administration.
- a further analgesic such as morphine and its derivatives, tetrahydrocannabinol and its derivatives, or a P2X3 purinergic receptor antagonist may be used in combination (as combination products for simultaneous, separate or extended use over time).
- the compounds of the invention may be used at doses of between 0.01 mg and 1000 mg per day, given in a single dose once a day or administered in several doses throughout of the day, for example twice a day in equal doses.
- the dose administered per day is advantageously between 0.01 mg and 100 mg, more advantageously between 0.1 mg and 10 mg.
- FIGURES Legend of figures:
- Figure 1 shows the total licking time (expressed in seconds during the 5 min examination period) of the paw of a mouse that received formalin versus time (minutes) after oral administration of the vehicle (D) OR a compound according to the invention (m), the graphs (A), (B) and (C) respectively corresponding to the compounds of Examples 8, 3 and 4.
- FIG. 2 represents the total licking time (expressed in seconds during the 5 min examination period) of the paw of a formalin-treated mouse 90 minutes after oral administration: (A) vehicle (D) OR compound 8 (50 mg / kg) according to the invention (m) or (B) of the vehicle (D) OR the reference molecule (100 mg / kg) (m).
- Figure 3 shows the response obtained in a neuropathic pain model by partial and unilateral ligation of the sciatic nerve of a mouse (Plantar test), allowing the evaluation of thermal hyperalgesia.
- the removal of the paw is measured (in seconds) as a function of time (in minutes) 14 days after surgery.
- Graph (A) represents the response observed for the ipsilateral paw
- FIG. 4 represents the response obtained in a von Frey test (measurement of allodynia) at a pressure (in g) of the paw of a mouse using filaments of increasing hardness, as a function of time (mn 14 days after surgery and after oral administration of the vehicle (D) OR the compound of Example 3 (50 mg / kg) (m).
- Graph (A) represents the response observed for the ipsilateral paw
- graph (B) represents the response obtained for the contralateral paw.
- Figure 5 shows the responses obtained at 60 min in a Von test
- Example 4 The compound of Example 4 is administered alone in 10 mg / kg (IZZ2) and gabapentin also po in the dose of 30 mg / kg (FTTT These two compounds are administered po, in combination, at the previous doses (UH).
- the control (I I) corresponds to the p.o. administration of the vehicle.
- Step 2 (1-aminoethyl) -phosphinic acid A mixture of 225 g of the compound of step 1 and 2L of 6N HCl is refluxed for 5 hours.
- Step 3 (R) (I-Benzyloxycarbonylaminoethyl) -phosphinic acid
- the 65 g (0.59 mol) of the compound of Step 2 is solubilized in 30 ml of water and the pH is adjusted to 9.5 by addition. of soda. 85 ml of benzyl chloroformate are added with stirring. After 1 h at 0 ° C., the mixture is brought to room temperature and is poured on an ice (IL) and concentrated HCl (300 ml) mixture.
- IL ice
- the diacid obtained in step 1 (60 g) is solubilized in 300 mL of THF and 23.5 mL (2 eq) of diethylamine and 19.5 mL (4 eq) of formaldehyde are added.
- the reaction medium is refluxed with stirring for 20 h.
- the THF is evaporated and the residue is taken up in ethyl acetate (50OmL) and acidified with 10OmL of 6N HCl.
- the organic phase is recovered, washed with 2x350 ml of water 1x300 ml of sat. NaCl. and dried over Na 2 SO 4 .
- a white powder is obtained, 51 g (97%).
- Step 3 2-Biphenyl-4-ylmethyl-acrylic acid benzyl ester
- Step 1 3 - [(2-Benzyloxycarbonyl-3-biphenyl-4-yl-propyl) -hydroxyphosphinoyl] -butyric acid benzyl ester
- Step 2 Ammonium hydrobromide of 1 - [(3-biphenyl-4-yl-2-carboxypropyl) hydroxy-phosphinoyl] -ethyl
- step 1 The compound of step 1 (10.6 g) is suspended in THF (100 mL) and 7.4 g of sodium hydroxide dissolved in 50 mL of water are added with stirring at 0 ° C. The mixture is stirred at room temperature overnight. The THF is evaporated, the aqueous phase is acidified to pH 1 with 1N HCl and then extracted with ethyl acetate. The organic phase is dried over Na 2 SO 4 , filtered and evaporated to dryness. White solid, 7.4 g
- reaction mixture is then evaporated to dryness and dried under vacuum to give an orange gummy product, 6.9 g (99%).
- Step 3 2-Biphenyl-4-ylmethyl-3- ⁇ hydroxy- [1- (1-isobutyryloxyethoxycarbonylamino) -ethyl] -phosphinoyl ⁇ -propionic acid
- the compound of step 2 (6.23 g) is suspended in acetonitrile (70 mL).
- Step 4 2- (2-Biphenyl-4-ylmethyl-3- ⁇ hydroxy- [1- (1-isobutyryloxy-ethoxycarbonylamino) -ethyl] -phosphinoyl ⁇ -propionylamino) -propionic acid benzyl ester
- Example 5 2- (2-Biphenyl-4-ylmethyl-3- ⁇ hydroxy- [1- (1-isobutyryloxy-ethoxycarbonylamino) -ethyl] -phosphinoyl ⁇ -propionylamino) -propionic acid sodium salt 87 mg of compound of Example 4 are dissolved in a mixture of 1 mL of water and 1 mL of acetonitrile. 12.6 mg of NaHCO 3 are added . The solution obtained is lyophilized and gives 87 mg of the expected compound.
- Example 3 The compound of Example 3 (500 mg) is coupled under the conditions of Step 4 of Example 3 with the hydrochloride of the alanine ethyl ester (152 mg).
- the crude product obtained is chromatographed on silica gel using CH 2 Cl 2 / MeOH / AcOH 7/3 / 0.2.
- N-Boc-L-alanine (boc tert-butyloxycarbonyl) (10 g) is dissolved in 100 ml of ethyl acetate in the presence of triethylamine (6.4 g, 1.2 eq.) Under an atmosphere. inert and the mixture is stirred for 15 minutes at room temperature. NaI (1.9 g, 0.2 eq) and 1-chloroethylethyl carbonate (9.38 g, 1.1 eq) are then added. The mixture is refluxed for 15 hours. When the reaction is complete, the mixture is washed with an aqueous solution of 10% NaHCO 3 (2 times), H 2 O, and a saturated aqueous solution of NaCl.
- step 1 The compound of step 1 (12.9 g) is solubilized in 25 mL of CH 2 Cl 2 and 25 mL of trifluoroacetic acid are added at 0 ° C. The mixture is stirred at ambient temperature for 3 h. When the reaction is complete, the reaction medium is evaporated to dryness. The residue is taken up 3 times with cyclohexane and the mixture is re-evaporated to remove excess TFA. Slightly brown oil, 13.4 g (99%).
- Example 8 (2-Biphenyl-4-ylmethyl-3- ⁇ hydroxy- [1- (1-isobutyryloxy-ethoxycarbonylamino) -ethyl] -phosphinoyl ⁇ -propionylamino) -propionic acid 1-ethoxycarbonyloxyethyl ester
- Example 3 500 mg is coupled under the conditions of Step 4 of Example 3 with the compound of Example 7 (500 mg, 1.2 eq.)).
- the crude product is chromatographed on silica gel (CH 2 Cl 2 / MeOH / AcOH 7/3 / 0.2), white solid, 330 mg (55%).
- Step 1 1- ⁇ 1 - [[2- (1-Benzyloxycarbonyl-ethylcarbamoyl) -3-biphenyl-4-yl-propyl] - (1-isobutyryloxy-ethoxy) -phosphinoyl] -ethylcarbamoyloxy ⁇ -ethyl Ester isobutyric acid
- Example 3 The final compound of Example 3 (350 mg) is dissolved in toluene. 90 mg of tetrabutylammonium sulphate, (nBu) 4 N + SO 4 H ⁇ (0.5 eq), NaI (80 mg, leq), the 1-chloroethyl ester of isobutyric acid are added under an inert atmosphere ( 160 mg, 4 eq) and 0.9 mL of DIEA. The mixture is heated at 120 ° C. for 3 hours.
- Step 2 2- (2-Biphenyl-4-ylmethyl-3 - ⁇ (1-isobutyryloxy-ethoxy) - [1- (1-isobutyryloxy-ethoxycarbonylamino) -ethyl] -phosphinoyl ⁇ -propionylamino) -propionic acid
- the compound of step 1 (200mg) is solubilized in MeOH (10mL). 40 mg of 10% Pd / C are added and the mixture is hydrogenolyzed at ordinary temperature and pressure for 1 h under a hydrogen atmosphere. The mixture is diluted in
- Step 2 Benzyl ester of 2- (4-bromo-phenyl-4-ylmethyl-acrylic acid
- Example 11 2- (2- (4-Bromo-benzyl) -3- (hydroxy- [1- (1-isobutyryloxy-ethoxycarbonylamino) -ethyl] -phosphinoyl ⁇ -propionylamino) -propionic acid benzyl ester
- Step 2 3 - ((1-aminoethyl) -hydroxy-phophinoyl) -2- (4-bromo-benzyl) -propionic acid From 3.3 g of the compound of Step 1 and following the protocol described in step 2 of example 3, the expected compound is obtained in the form of a white solid,
- Step 3 2- (4-Bromo-benzyl) -3- ⁇ hydroxy- [1- (1-isobutyryloxy-ethoxycarbonylamino) -ethyl] -phosphinoyl ⁇ -propionic acid From 2.5 g of the stage compound 2 and following the protocol described in step 3 of Example 3, the expected compound is obtained. White solid, 2,6g.
- Example 12 2- (2- (4-Bromo-benzyl) -3- ⁇ hydroxy- [1- (1-isobutyryloxy-ethoxycarbonylamino) -ethyl] -phosphinoyl ⁇ -propionylamino) -propionic acid
- Step 1 3 - ((1-Benzyloxycarbonylamino-ethyl) -hydroxy-phosphinoyl) -2- (4-bromo-benzyl) -propionic acid.
- Step 2 2- (3 - ((1-Benzyloxycarbonylamino-ethyl) -hydroxy-phosphinoyl) -2- (4-bromo-benzyl) -propionylamino) -propionic acid t-butyl ester.
- the compound of step 1 (0.9 g) is solubilized in 10 ml of DMF under nitrogen, then t-butylalaninate hydrochloride (450 mg), 2.5 ml of DIEA (6 ml) are added successively. eq) and 1.98 g of TBTU (3eq). The mixture is stirred for 15 min at room temperature, then the reaction is treated as in step 4 of Example 3. 1.10 g of the expected product (97%) is obtained.
- Step 3 2- (3 - ((1-Amino-ethyl) -hydroxy-phosphinoyl) -2- (4-bromo-benzyl) -propionylamino) -propionic acid
- the compound obtained in step 2 is solubilized in a mixture CH2Cl2 / TFA 50/50 (40 mL) and the mixture is stirred at room temperature. The solution is evaporated to dryness, the residue is taken up in water and freeze-dried. 1.0 g of the expected compound is obtained. This is solubilized in HBr / AcOH (10 mL) and the solution is stirred at room temperature. The mixture is then evaporated under reduced pressure. The residue is taken up in water and freeze-dried.
- Step 4 2- (2- (4-Bromo-benzyl) -3- ⁇ hydroxy- [1- (1-isobutyryloxy-ethoxycarbonylamino) -ethyl] -phosphinoyl ⁇ -propionylamino) -propionic acid
- the foregoing compound is solubilized in 15 mL of CH 2 Cl 2 .
- 0.76 g of isobutyloxyethyl succinimidyl carbonate and 1.87 ml of DIEA are added and the mixture is stirred for 1 h at room temperature.
- the mixture is then washed with H 2 O and with a solution saturated aqueous NaCl, dried over Na 2 SO 4 and evaporated to dryness.
- the crude product is purified by HPLC.
- Step 3 (Benzyloxycarbonylamino) (thiophen-3-yl) methylphosphinic acid
- the compound of step 2 is suspended in 25 mL of dioxane.
- the pH is adjusted to 9.5 by adding sodium hydroxide (23 ml).
- 6.46 ml of benzyl chloroformate are added with stirring.
- the mixture is brought to room temperature and is poured into an ice (IL) and concentrated HCl (30 ml) mixture.
- the white precipitate formed is drained, washed with water (2 ⁇ 20 mL) and dried.
- White solid
- the resolution of the racemic phosphinic acid is carried out by recrystallization of the salt obtained with (R) (+) ⁇ -methylbenzylamine, as described in Baylis et al. (J.
- a mixture of 20 g of the compound of step 1 and 160 ml of 6N HCl is refluxed for 2 hours. After cooling, the reaction medium is concentrated by half and then extracted with 3 ⁇ 1.5 L of ethyl ether. The solution is evaporated to dryness and the oily residue is taken up in 160 mL of ethanol. The solution is cooled to 0 ° C. and 40 ml of propylene oxide are added. A white solid precipitates. The precipitate is drained, washed with ethanol (2 ⁇ 20 mL), with ethyl ether (2 ⁇ 10 mL) and dried. White solid, 7.25g (95.3%).
- step 2 The compound of step 2 is suspended in 25 mL of dioxane.
- the pH is adjusted to 9.5 by adding sodium hydroxide (23 ml).
- 6.46 ml of benzyl chloroformate are added with stirring.
- the mixture is brought to room temperature and is poured into an ice (IL) and concentrated HCl (30 ml) mixture.
- the white precipitate formed is drained, washed with water (2 ⁇ 20 mL) and dried.
- White solid
- the resolution of the racemic phosphinic acid is carried out by recrystallization of the salt obtained with (R) (+) ⁇ -methylbenzylamine, as described in Baylis et al. (J.
- Example 16 2- [2- ⁇ Hydroxy - [(1-isobutyryloxy-ethoxycarbonylamino) -phenyl-methyl] -phosphinoylmethyl ⁇ -3- (4-thiophen-3-yl-phenyl) -propionylamino] -propionic acid
- Step 3 (R) - (tert-Butoxycarbonylamino) (phenyl) methyl ((S) -3-ethoxy-3-oxo-2- (4- (thiophen-3-yl) benzyl) propyl ethyl ester
- Et 3 N 35 mL, 250 mmol, 8 eq
- BoC 2 O 6.75 g, leq
- the mixture is stirred overnight at room temperature.
- the DMF is evaporated under reduced pressure and the mixture is taken up in AcOEt.
- the organic phase is washed with a 10% citric acid solution, a 10% NaHCO 3 solution, a sat. NaCl solution, dried over Na 2 SO 4 and concentrated under reduced pressure to give 15.16 g of product (90.2%).
- Step 4 3 - (((R) - (tert-butoxycarbonylamino) (phenyl) methyl) (hydroxy) phosphoryl) -2- (4- (thiophen-3-yl) benzyl) propanoic acid
- the compound of Step 3 (15.16 g, 27.88 mmol) is solubilized in 280 ml of acetone and then 1N NaOH (278.8 ml, 10 eq) are added dropwise. The mixture is stirred overnight at room temperature and the acetone is evaporated under reduced pressure. The mixture is taken up by AcOEt. The aqueous phase is extracted and then acidified by
- Step 5 (R) - (tert-Butoxycarbonylamino) (phenyl) methyl ((S) -3 - ((S) -1-methoxy-1-oxopropan-2-ylamino) -3-oxo methyl ester 2- (4- (thiophen-3-yl) benzyl) propyl) phosphinic
- the expected compound is obtained following the protocol of step 4 of example 3.
- the expected diastereoisomer is obtained by purification by semi-preparative HPLC on a Kromasil Cl 8 column with 50/50 CH 3 CN (0.1% TFA) / H 2 O (0.1% TFA) as the elution system.
- White solid 50 mg (30.0%).
- Step 6 (R) - (tert-Butoxycarbonylamino) (phenyl) methyl ((S) -3 - ((S) -I-methoxy-1-oxopropan-2-ylamino) -3-oxo-2- (4) - (thiophen-3-yl) benzyl) propyl) phosphinic
- Step 7 (2S) -2 - ((2S) -3 - (((R) -amino (phenyl) methyl) (hydroxy) phosphoryl) -2- (4- (thiophen-3-yl) trifluoroacetate ) benzyl) propanamido) propanoic
- 48 mg of the compound of step 6 is dissolved in 4 mL of DCM.
- 60 ⁇ l of trifluoroacetic acid are added and the mixture is stirred for 45 min at 0 ° C.
- the mixture is evaporated under reduced pressure to give 49 mg (100%).
- the above compound is solubilized in 1 ml of CH 3 CN and then 340 ⁇ l of 2N NaHCO 3 and 34 mg of isobutyloxyethyl succinimide carbonate (1.2 eq) are added and the mixture is stirred for 1 hour at 60 ° C.
- the mixture is taken up in the ethyl acetate is then washed with H 2 O and with a saturated aqueous solution of NaCl, dried over Na 2 SO 4 and evaporated to dryness.
- the crude product is purified by HPLC.
- Example 17 2- [2- ⁇ Hydroxy - [(1-isobutyryloxy-ethoxycarbonylamino) -phenyl-methyl] -phosphinoylmethyl ⁇ -3- (4-thiophen-3-yl-phenyl) -propionylamino] -3-hydroxypropionic acid
- This compound is synthesized following the protocol described in Example 16, replacing the methyl ester of alanine with the serine methyl ester (O-tBu).
- Step 1 3 - (((R) - (benzyloxycarbonylamino) (thiophen-3-yl) methyl) (hydroxy) phosphoryl) -2- (biphenyl-4-ylmethyl) propanoic acid
- Example 13 The compound of Example 13 (660 mg, 1.0 eq) of R configuration and the compound of Example 2, Step 2 (642 mg, 1.2 eq) are dissolved in BSA (5 mL). and the mixture is heated for 15h at 75 ° C. The reaction mixture is cooled to room temperature, and is diluted in ethyl acetate. The organic phase is washed with water and then evaporated to dryness. A white solid product is obtained corresponding to the mixture of the two diastereoisomers of respective configuration IR, 2 S and 1R, 2R in relative proportions 65/35. White solid, 1.4g (100%).
- Step 2 (R) - (Benzyloxycarbonylamino) (thiophen-3-yl) methyl (2- (biphenyl-4-ylmethyl) -3 - ((S) -1-methoxy-1-oxopropan-2-ylamino) - acid 3-oxopropyl) phosphinic From 2.12 mmol of the compound of step 1 and 2.75 mmol of alanine methyl ester, the procedure of step 4 of Example 3 is followed, the expected compound. White solid: 1.40g (90.0%).
- Step 3 2- ⁇ 2 - [(Benzyloxycarbonylamino-thiophen-3-yl-methyl) -hydroxy-phosphinoylmethyl] -3-biphenyl-4-yl-propionylamino ⁇ -propionic acid
- 100 mg of the compound of Step 2 is added in solution in 4 mL of acetone.
- 1.6 ml of 1N NaOH (10 eq) are added and the mixture is stirred for 2.5 h at room temperature and then the acetone is evaporated under reduced pressure.
- the mixture is taken up by AcOEt.
- the aqueous phase is extracted and then acidified with 1N HCl.
- the aqueous phase is then extracted with AcOEt.
- Step 4 (2S) -2 - ((2S) -3 - (((R) -amino (thiophen-3-yl) methyl) (hydroxy) phosphoryl) -2- (biphenyl) trifluoroacetate ylmethyl) propanamido) propanoic
- the compound of step 3 is dissolved in 4 mL of 48% HBr in solution in acetic acid. The mixture is stirred for 2 hours at room temperature. The mixture is evaporated under reduced pressure and the residue is purified by semi-preparative HPLC on a Kromasil Cl 8 column with 50/50 CH 3 CN (0.1% TFA) / H 2 O (0.1% TFA) as the elution system. White solid: 28 mg (57.1%).
- Step 5 2- (3-Biphenyl-4-yl-2- ⁇ hydroxy - [(1-isobutyryloxy-ethoxycarbonylamino) -thiophen-3-yl-methyl] -phosphinoylmethyl ⁇ -propionylamino) -propionic acid
- the above compound is solubilized in 1 mL of CH 3 CN and 195 ⁇ L of 2N NaHCO 3 , followed by addition of 20 mg of isobutyloxyethyl succinimide carbonate (1.2 eq). The mixture is stirred for 1 h at 60 ° C. The mixture is taken up in ethyl acetate, then washed with H 2 O and with a saturated aqueous solution of NaCl, dried over Na 2 SO 4 and evaporated to dryness. The crude product is purified by HPLC.
- Step 1 2 - [(1-Benzyloxycarbonylaminoethyl) hydroxyphosphinoylmethyl] -3-biphenyl-4-yl-propionic acid
- step 1 The compound of step 1 (0.9 g) is solubilized in 10 ml of DMF under nitrogen, then t-butylalaninate hydrochloride (450 mg), 2.5 ml of DIEA (6 ml) are added successively. eq) and 1.98 g of TBTU (3eq). The mixture is stirred for 15 min at room temperature, then the reaction is treated as in step 4 of the example
- Step 3 2 (2S) -2 - ((2S) -3 - (((R) -1-aminoethyl) (hydroxy) phosphoryl) -2-
- step 2 (biphenyl-4-ylmethyl) propanamido) propanoic
- HBr / AcOH mixture 10 mL
- the compound obtained in step 2 is solubilized in an HBr / AcOH mixture (10 mL) and the solution is stirred for 1 h at room temperature. The mixture is then evaporated under reduced pressure. The residue is taken up in water and freeze-dried. 930 mg of the expected product (100%) are obtained.
- Step 4 2- ⁇ 3-Biphenyl-4-yl-2- [hydroxy- (1-isobutyryloxymethoxycarbonylamino-ethyl) -phosphinoylmethyl] -propionylamino ⁇ -propionic acid
- Example 20 1- (1 - ⁇ [3-Biphenyl-4-yl-2- (1-carboxyethylcarbamoyl) -propyl] -hydroxy-phosphinoyl ⁇ -ethylcarbamoyloxy) -ethyl of 2-Dimethylpropionic Acid
- Example 19 394 mg of the compound of Step 3, Example 19 are solubilized in 2 mL of CH 3 CN and 2 mL of 2N NaHCO 3 , then 272 mg of isobutyloxy succinimide carbonate (1.2 eq) are added and the mixture is stirred for 1 hour at 60 ° C. The mixture is taken up in ethyl acetate, washed with H 2 O and with saturated aqueous NaCl solution, dried over Na 2 SO 4 and evaporated to dryness. The crude product is purified by HPLC to give
- Example 21 2 - [(1- ⁇ Hydroxy- [1- (1-isobutyryloxy-ethoxycarbonylamino) -ethyl] -phosphinoylmethyl ⁇ -cyclopentanecarbonyl) -amino] -propionic acid
- Step 2 t-Butyl ester of 1- (hydroxymethyl) cyclopentanecarboxylic acid.
- iPr 2 NH 7.91 mL, 56.11 mmol
- THF 190 mL
- nBuLi in hexane 2.5 M, 23.3 mL, 58.17 mmol, 1.04 eq.
- Step 3 Benzyl (1R) -1- (methoxyhydrophosphoryl) ethylcarbamate
- Example 3 Under nitrogen, the compound of Step 2, Example 3 (6g, 24.67 mmol) is solubilized in a MeOH / toluene mixture. A solution of trimethylsilyldiazomethane is added dropwise until the staining persists (which corresponds to the end of the gas evolution). The mixture is stirred at room temperature, while toluene is evaporated under reduced pressure. The mixture is extracted with AcOEt). The organic phase is washed with 10% NaHCO 3 , sat. NaCl, dried over Na 2 SO 4 and concentrated under reduced pressure to give 5.75 g of the desired product (yield: 90.7%).
- Step 5 1 - (((R) -1- (benzyloxycarbonylamino) ethyl) (hydroxy) phosphoryl) methyl) cyclopentanecarboxylic acid.
- Step 6 (R) -1- (Benzyloxycarbonylamino) ethyl ((1 - ((S) -1-tert-butoxy-1-oxopropan-2-ylcarbamoyl) cyclopentyl) methyl) phosphinic acid.
- the compound of step 5 (0.118 g, 0.319 mmol) is solubilized in 2 mL of DMF under nitrogen, then t-butylalaninate hydrochloride (70 mg), 279 ⁇ L of DIEA (5 eq) are successively added. and 308 mg of TBTU (3eq). The mixture is stirred for 15 min at room temperature, then the reaction is treated as in step 4 of Example 3. 111 mg of the expected product (70.3%) is obtained.
- Step 7 (2S) -2- (1 - ((((1R) -1-aminoethyl) (hydroxy) phosphorylmethyl) cyclopentanecarboxamido) propanoic acid trifluoroacetate
- the compound obtained in step 6 is solubilized in a mixture HBr / AcOH (2 mL) and the solution is stirred at room temperature The mixture is then evaporated under reduced pressure
- the product is purified by semi-preparative HPLC on ACE Cl 8 column with a gradient of 0 to 60% of CH 3 CN in 30 min of a mixture CH 3 CN (0.1% TFA) / H 2 O (0.1% TFA) to give 57.2 mg of the expected product (Yield: 61.9%) HPLC ACE Cl 8 gradient from 0 to 60% of CH 3 CN in 30 min of a CH 3 CN (0.1%) / H 2 O (0.1% TFA) mixture Rt: 9.97 min 1H NMR (DMSOd6) ⁇ (ppm): 1.15-1
- Step 8 2 - [(1 - ⁇ Hydroxy- [1- (1-isobutyryloxy-ethoxycarbonylamino) -ethyl] -phosphinoylmethyl ⁇ -cyclopentanecarbonyl) -amino] -propionic acid 55 mg of the compound of Step 7 is solubilized in 1 mL of CH 3 CN and 366 ⁇ L of 2N NaHCO 3 . 35 mg of isobutyloxy succinimide carbonate (1.2 eq) are added and the mixture is stirred for 1 h at 60 ° C.
- Example 22 2 - [(1-Acetyl-4- ⁇ Hydroxy- [1- (1-isobutyryloxy-ethoxycarbonylamino) -ethyl] -phosphinoylmethyl ⁇ -piperidine-4-carbonyl) amino] -propionic acid
- Step 1 1-Acetylpiperidine-4-carboxylic acid t-butyl ester
- the 1-acetylpiperidine-4-carboxylic acid (2.97 g) suspended in 25 ml of a THF / toluene mixture, is heated at 85 ° C. under a stream of nitrogen.
- N 5 N dimethylformamide said-butyl acetal 25 mL, 6EQ was added dropwise and heating is maintained for 30 min.
- the mixture is evaporated to dryness and the residue is taken up in ethyl acetate.
- Step 2 t-Butyl ester of 1-Acetyl-4-hydroxymethyl-piperidine-4-carboxylic acid
- iPr 2 NH 2.10 mL, 14.89 mmol
- THF 16 mL
- nBuLi in hexane 2.5 M
- a solution of the compound of step 1 (1.54 g
- Step 3 1-Acetyl-4-trifluoromethanesulfonyloxymethyl-piperidine-4-carboxylic acid tert-butyl ester
- a mixture of 2.0 mL pyridine (250mmol) and 20 mL of dichloromethane is cooled to -78 ° C under nitrogen.
- Triflic anhydride (2.10 mL, 12.5 mmol) is added dropwise.
- a solution of 1.29 g of the compound of step 2 (5.0 mmol) in 15 mL of CH 2 Cl 2 is added dropwise.
- the mixture is stirred for 2h at -78 ° C.
- the organic phase is washed with 1N HCl, H 2 O, sat. NaCl, dried over Na 2 SO 4 and concentrated under reduced pressure to give 1.68 g of the expected product (yield: 86%) used as it is for the next step.
- Step 4 1-Acetyl-4 - ((((R) -l-
- step 4 (4.31 mmol) is added in 10 mL of THF and the mixture is stirred for 10 min at -78 ° C. and then for 5 h at room temperature. .
- the mixture is diluted with AcOEt.
- the organic phase is washed with 1N HCl, 10% NaHCO 3 , sat. NaCl, dried over Na 2 SO 4 and concentrated under reduced pressure.
- the crude product obtained is dissolved in 31 ml of CH 2 Cl 2 and 12 ml of TFA are added. The mixture is stirred for 2 hours at room temperature.
- the expected product is purified by semi-preparative HPLC on an Atlantis T3 column, CH 3 CN (0.1% TFA) / H 2 O (0.1% TFA) 15/85 to give 367 mg of the pure product (Yield: 23% ).
- Step 5 (2S) -2- (1-Acetyl-4 - (((R) -1-aminoethyl) (hydroxy) phosphoryl) methyl) piperidine-4-carboxamido) propanoic acid trifluoroacetate
- the compound of step 4 (0.175 g, 0.41 mmol) is solubilized in 2 mL of DMF under nitrogen, then t-butyl alaninate hydrochloride (89 mg, 1.2eq), 360 ⁇ L of DIEA (5 eq) and 395 mg of TBTU (3eq). The mixture is stirred for 15 min at room temperature and the reaction mixture is then evaporated to dryness.
- Step 6 2 - [(1-Acetyl-4- ⁇ Hydroxy- [1- (1-isobutyryloxy-ethoxycarbonylamino) -ethyl] -phosphinoylmethyl ⁇ -piperidine-4-carbonyl) -amino] -propionic acid
- the molecules of the present invention have been studied for their analgesic action on the animal models most predictive of the response in humans.
- the preferred tests are those for neuroinflammatory (NI) and neuropathic (NP) pain in rats and mice.
- mice i) pain caused by the administration of formalin in the paw and study of the analgesic response in the first phase considered as reflecting a peripheral action at the level of nociceptors, and ii) hyperalgesia and allodynia produced by partial and unilateral compression of the sciatic nerve (Seltzer model) (Bennett GJ and Xie YK, Pain (1998) 33, 87-107).
- the molecules were studied at a time (90 min) for comparative tests and at two times, 90 and 150 minutes, so as to observe their duration of action. Description of the test: The animals (OFl male mice) come from the Charles River breeding (France) and weigh 25-35 g at the beginning of the experiment. The weight of each mouse is taken into account for the administration of the product.
- mice are individually placed in a transparent enclosure (50x25 cm 2 ) and are used to this environment for 20 minutes. After this period, 20 ⁇ l of formalin (5% HCHO) in solution in physiological saline (H 2 O, NaCl 0.9%) are injected subcutaneously on the plantar surface of the right leg of the animal. .
- a syringe of 26 connected to a micro-syringe is used. Each mouse is then immediately returned to the test chamber and painful (nociceptive) responses are measured for 5 minutes (early phase). Only the licks of the paw are counted.
- the analgesic activity is tested after gavage of the animals at different times (generally 20 min, 90 min and 150 min) after the injection of formalin, by: the vehicle alone (ethanol, methylcellulose 0.5% in water) - the vehicle and a compound of the invention (50 mg / kg)
- the analgesic action of the product is measured by decreasing the number of licks of the injured paw, compared to the number of licks of the animal that received the vehicle alone.
- the total duration (discontinuous) of the licks, expressed in seconds for each mouse, is counted during 4 min.
- the cumulative values for n mice are then divided by the number n of mice studied.
- the three compounds show strong analgesic effects (40 to 60%) characterized by a very significant lowering of the number of licks compared to the vehicle (control) and the effects are approximately constant during the test period.
- an analgesic activity of the compounds of the invention is observed at times up to 150 minutes, which attests to the long duration of action of the compounds of the invention.
- the analgesic action is blocked by a pre-administration of an antagonist, methyl-naloxonium, which, at the dose used (2 mg / kg), is unable to cross the blood-brain barrier (Milne RJ et al., Neurosci Lett (1990), 114, 25-32), demonstrating that the activity of these molecules is exerted on the peripheral level (nociceptors) where they increase the enkephalins released at the injured site.
- test A described above was repeated with the compound of Example 8 (50 mg / kg, Figure 2A) and the reference molecule of the prior art (100 mg / kg, Figure 2B) in order to compare their action in the time, 90 minutes after the injection of formalin.
- the reference molecule has no activity at 90 minutes at a dose of 100 mg / kg (per os) whereas the compound of Example 8 leads on the contrary to a very significant analgesic activity at 90 minutes at a dose of 50 mg / kg (oral) twice as low (see Figure 2).
- the present invention is therefore characterized by the development of molecules with oral analgesic properties with a long duration of action.
- C Antiallodynic and antihyperalgesic effects of the compound of Example 3 after oral administration in mice. This test has been described in detail by A.B. Malmberg and A.I. Basbaum, Partial Sciatic nerve injury in the mouse as a model of neuropathic pain: behavioral and neuroanatomical correlates. Pain, (1998) 76, 215-222.
- the average heat-induced paw withdrawal was measured on the ipsilateral (damaged nerve) and contralateral (intact nerve) paws. Each measurement is performed 3 times on each leg.
- Mechanical allodynia is measured as described by SR Chaplan et al., Quantitative evaluation of tactile allodynia in the rat paw, J. Neurosci. Meth. (1994), 53, 55-63.
- the ipsilateral (lesion) and contralateral (control) paws are tested as before, the mechanical antiallodynic effect being measured by the Von Frey method (Malmerg AB and Basbaum AI, 1998, Pain, 76, 215-222) with filaments of increasing size exerting an equally increasing pressure.
- Antihyperalgesic effect :
- the effect of the compound of Example 3 on mechanical allodynia is measured by the Von Frey test.
- the results obtained, represented in FIG. 4, show a significant anti-allodynic effect of long duration (45-120 min) with a maximum at 60 min corresponding to 75% of the maximum response (untreated control).
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Abstract
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Priority Applications (14)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200980135592.5A CN102149721B (zh) | 2008-07-23 | 2009-07-22 | 用于治疗疼痛的氨基膦衍生物 |
| EP09780902.4A EP2326655B1 (fr) | 2008-07-23 | 2009-07-22 | Derives aminophosphiniques utiles dans le traitement de la douleur |
| BRPI0916811-7A BRPI0916811B1 (pt) | 2008-07-23 | 2009-07-22 | Derivados amino fosfínicos e composições farmacêuticas úteis no tratamento da dor |
| CA2731544A CA2731544C (fr) | 2008-07-23 | 2009-07-22 | Derives aminophosphiniques utiles dans le traitement de la douleur |
| DK09780902.4T DK2326655T3 (en) | 2008-07-23 | 2009-07-22 | Aminophosphinic acid derivatives which can be used in pain management |
| ES09780902.4T ES2533851T3 (es) | 2008-07-23 | 2009-07-22 | Derivados aminofosfínicos útiles en el tratamiento del dolor |
| US13/055,096 US8703747B2 (en) | 2008-07-23 | 2009-07-22 | Aminophosphinic derivatives that can be used in the treatment of pain |
| JP2011519156A JP5607045B2 (ja) | 2008-07-23 | 2009-07-22 | 疼痛処置に使用可能なアミノホスフィン酸誘導体 |
| MX2011000867A MX2011000867A (es) | 2008-07-23 | 2009-07-22 | Derivados aminofosfinicos utiles en el tratamiento del dolor. |
| AU2009273238A AU2009273238A1 (en) | 2008-07-23 | 2009-07-22 | Aminophosphinic derivatives that can be used in the treatment of pain |
| HK12100836.4A HK1160471B (en) | 2008-07-23 | 2009-07-22 | Aminophosphinic derivatives that can be used in the treatment of pain |
| IL210760A IL210760A (en) | 2008-07-23 | 2011-01-20 | Phosphonic amino acids that can be used in pain treatment |
| ZA2011/01424A ZA201101424B (en) | 2008-07-23 | 2011-02-23 | Aminophosphinic derivatives that can be used in the treatment of pain |
| US14/182,611 US10131681B2 (en) | 2008-07-23 | 2014-02-18 | Aminophosphinic derivatives that can be used in the treatment of pain |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0855015 | 2008-07-23 | ||
| FR0855015A FR2934267B1 (fr) | 2008-07-23 | 2008-07-23 | Derives aminophosphiniques utiles dans le traitement de la douleur |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/055,096 A-371-Of-International US8703747B2 (en) | 2008-07-23 | 2009-07-22 | Aminophosphinic derivatives that can be used in the treatment of pain |
| EP14157306.3A Previously-Filed-Application EP2740736B1 (fr) | 2008-07-23 | 2009-07-22 | Derives aminophosphiniques utiles dans le traitement de la douleur |
| US14/182,611 Continuation US10131681B2 (en) | 2008-07-23 | 2014-02-18 | Aminophosphinic derivatives that can be used in the treatment of pain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010010106A1 true WO2010010106A1 (fr) | 2010-01-28 |
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| PCT/EP2009/059394 Ceased WO2010010106A1 (fr) | 2008-07-23 | 2009-07-22 | Derives aminophosphiniques utiles dans le traitement de la douleur |
Country Status (16)
| Country | Link |
|---|---|
| US (2) | US8703747B2 (fr) |
| EP (2) | EP2326655B1 (fr) |
| JP (1) | JP5607045B2 (fr) |
| KR (1) | KR101631726B1 (fr) |
| CN (1) | CN102149721B (fr) |
| AU (1) | AU2009273238A1 (fr) |
| BR (1) | BRPI0916811B1 (fr) |
| CA (1) | CA2731544C (fr) |
| DK (2) | DK2740736T3 (fr) |
| ES (2) | ES2561579T3 (fr) |
| FR (1) | FR2934267B1 (fr) |
| IL (1) | IL210760A (fr) |
| MX (1) | MX2011000867A (fr) |
| RU (1) | RU2011106300A (fr) |
| WO (1) | WO2010010106A1 (fr) |
| ZA (1) | ZA201101424B (fr) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017093322A1 (fr) | 2015-11-30 | 2017-06-08 | Pharmaleads | Dérivés aminophosphiniques pour la prévention et le traitement des douleurs oculaires |
| WO2018162860A1 (fr) | 2017-03-09 | 2018-09-13 | Pharmaleads | Dérivés aminophosphiniques pour la prévention et le traitement de l'inflammation oculaire |
| FR3063635A1 (fr) * | 2017-03-09 | 2018-09-14 | Pharmaleads | Derives aminophosphiniques pour la prevention et le traitement de l'inflammation oculaire |
| WO2019145507A1 (fr) | 2018-01-26 | 2019-08-01 | Pharmaleads | Dérivés aminoacides contenant un groupement disulfanyle sous forme d'un inhibiteur de nep et d'apn pour la prévention et le traitement des douleurs relatives au nerf trijumeau |
| WO2021116617A1 (fr) | 2019-12-11 | 2021-06-17 | Pharmaleads | Procédé de préparation industrielle du sel disodique de ((2s)-3-([1,1'-biphenyl]-4-yl)-2-((hydroxy((1r)-1-(((1-(isobutyryloxy)ethoxy)carbonyl)amino)ethyl)phosphoryl)methyl)propanoyl)-l-alanine |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2934267B1 (fr) * | 2008-07-23 | 2010-08-13 | Pharmaleads | Derives aminophosphiniques utiles dans le traitement de la douleur |
| FR2997081B1 (fr) | 2012-10-23 | 2015-11-27 | Pharmaleads | Inhibiteurs mixtes de l'aminopeptidase n et de la neprilysine |
| CN105503947B (zh) * | 2015-12-31 | 2018-07-24 | 遵义医学院 | 一种含氨基酸片段的膦酸酯衍生物的制备方法及抗肿瘤应用 |
| TW202029962A (zh) * | 2018-10-26 | 2020-08-16 | 法商量子基因科技有限公司 | 胺肽酶a抑制劑及包含其的醫藥組合物 |
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| US5476847A (en) | 1994-06-29 | 1995-12-19 | Schering Corporation | Derivatives of phosphinic acid useful as endothelin converting enzyme inhibitors |
| WO1997000261A1 (fr) * | 1995-06-14 | 1997-01-03 | Zambon Group S.P.A. | Derives d'acide phosphonique possedant une activite inhibitrice par rapport a la metallopeptidase |
| WO1997000263A1 (fr) | 1995-06-16 | 1997-01-03 | The Procter & Gamble Company | Procede de production de catalyseurs au cobalt |
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| FR853092A (fr) | 1938-06-20 | 1940-03-09 | Dispositif d'éclairage arrière pour véhicules, notamment pour véhicules automobiles | |
| FR2518088B1 (fr) | 1981-12-16 | 1987-11-27 | Roques Bernard | Nouveaux derives d'aminoacides, et leur application therapeutique |
| FR2605004B1 (fr) | 1986-09-25 | 1989-01-13 | Centre Nat Rech Scient | Nouveaux derives d'amino-acides, leur procede de preparation et composition pharmaceutiques les contenant |
| FR2651229B1 (fr) | 1989-08-24 | 1991-12-13 | Inst Nat Sante Rech Med | Nouveaux derives d'amino-acides, leur procede de preparation et leur application therapeutique. |
| IT1270260B (it) * | 1994-06-21 | 1997-04-29 | Zambon Spa | Derivati dell'acido fosfonico ad attivita' inibitrice delle metallopeptidasi |
| JPH0987291A (ja) * | 1995-09-26 | 1997-03-31 | Wakamoto Pharmaceut Co Ltd | 新規なアラニン誘導体 |
| FR2755135B1 (fr) * | 1996-10-25 | 2002-12-27 | Inst Nat Sante Rech Med | Nouveaux derives d'(alpha-aminophosphino)peptides, leur procede de preparation et les compositions qui les contiennent |
| WO1999012537A1 (fr) * | 1997-09-08 | 1999-03-18 | Warner-Lambert Company | Compositions analgesiques comprenant des composes anticonvulsivants et leur mode d'utilisation |
| FR2777780B1 (fr) | 1998-04-22 | 2001-05-04 | Inst Nat Sante Rech Med | Derives d'(alpha-aminophosphino) peptides, leur procede de preparation et les compositions qui les contiennent |
| US6113915A (en) * | 1999-10-12 | 2000-09-05 | Allergan Sales, Inc. | Methods for treating pain |
| ES2369256T3 (es) | 2000-06-26 | 2011-11-28 | Helen Of Troy Limited | Sistema de lámpara recargable. |
| FR2834989B1 (fr) * | 2002-01-18 | 2005-05-20 | Commissariat Energie Atomique | Derives de pseudo-peptides phosphiniques inhibant selectivement le site actif c-terminal de l'enzyme de conversion de l'angiotensine i(ace) |
| EP1716160B1 (fr) * | 2004-01-23 | 2010-12-29 | Janssen Pharmaceutica NV | Nouveaux inhibiteurs de chymase |
| WO2006050472A2 (fr) * | 2004-11-03 | 2006-05-11 | Xenoport, Inc. | Prodrogues d'acyloxyalkyl carbamate, et leurs procedes de synthese et d'utilisation |
| FR2882752B1 (fr) * | 2005-03-01 | 2007-05-04 | Servier Lab | Nouveaux derives d'aminoacides phosphiniques, leur procede de preparation et les compositions pharmaceutiques qui les contiennent |
| FR2931151A1 (fr) * | 2008-05-13 | 2009-11-20 | Pharmaleads Soc Par Actions Si | Nouveaux derives d'amino-acides, leur procede de preparation et leur utilisation therapeutique |
| FR2934267B1 (fr) * | 2008-07-23 | 2010-08-13 | Pharmaleads | Derives aminophosphiniques utiles dans le traitement de la douleur |
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2008
- 2008-07-23 FR FR0855015A patent/FR2934267B1/fr active Active
-
2009
- 2009-07-22 RU RU2011106300/04A patent/RU2011106300A/ru unknown
- 2009-07-22 CA CA2731544A patent/CA2731544C/fr active Active
- 2009-07-22 KR KR1020117004013A patent/KR101631726B1/ko active Active
- 2009-07-22 WO PCT/EP2009/059394 patent/WO2010010106A1/fr not_active Ceased
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| US5476847A (en) | 1994-06-29 | 1995-12-19 | Schering Corporation | Derivatives of phosphinic acid useful as endothelin converting enzyme inhibitors |
| WO1997000261A1 (fr) * | 1995-06-14 | 1997-01-03 | Zambon Group S.P.A. | Derives d'acide phosphonique possedant une activite inhibitrice par rapport a la metallopeptidase |
| WO1997000263A1 (fr) | 1995-06-16 | 1997-01-03 | The Procter & Gamble Company | Procede de production de catalyseurs au cobalt |
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| CHEN H ET AL: "Long lasting antinociceptive properties of enkephalin degrading enzyme (NEP and APN) inhibitor prodrugs.", JOURNAL OF MEDICINAL CHEMISTRY 11 OCT 2001, vol. 44, no. 21, 11 October 2001 (2001-10-11), pages 3523 - 3530, XP002514724, ISSN: 0022-2623 * |
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| ZHOU JIA ET AL: "NAAG peptidase inhibitors and their potential for diagnosis and therapy.", NATURE REVIEWS. DRUG DISCOVERY DEC 2005, vol. 4, no. 12, December 2005 (2005-12-01), pages 1015 - 1026, XP002514725, ISSN: 1474-1776 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017093322A1 (fr) | 2015-11-30 | 2017-06-08 | Pharmaleads | Dérivés aminophosphiniques pour la prévention et le traitement des douleurs oculaires |
| US10688113B2 (en) | 2015-11-30 | 2020-06-23 | Pharmaleads | Methods of treating eye pain with aminophosphinic derivatives |
| WO2018162860A1 (fr) | 2017-03-09 | 2018-09-13 | Pharmaleads | Dérivés aminophosphiniques pour la prévention et le traitement de l'inflammation oculaire |
| FR3063635A1 (fr) * | 2017-03-09 | 2018-09-14 | Pharmaleads | Derives aminophosphiniques pour la prevention et le traitement de l'inflammation oculaire |
| KR20190127786A (ko) * | 2017-03-09 | 2019-11-13 | 파마리드스 | 눈 염증의 예방 및 치료를 위한 아미노포스핀 유도체 |
| KR102675216B1 (ko) | 2017-03-09 | 2024-06-13 | 파마리드스 | 눈 염증의 예방 및 치료를 위한 아미노포스핀 유도체 |
| WO2019145507A1 (fr) | 2018-01-26 | 2019-08-01 | Pharmaleads | Dérivés aminoacides contenant un groupement disulfanyle sous forme d'un inhibiteur de nep et d'apn pour la prévention et le traitement des douleurs relatives au nerf trijumeau |
| US11648231B2 (en) | 2018-01-26 | 2023-05-16 | Pharmaleads | Amino acid derivatives containing a disulfanyl group in the form of an NEP and APN inhibitor for the prevention and treatment of trigeminal nerve pain |
| US12485104B2 (en) | 2018-01-26 | 2025-12-02 | Kos Therapeutics, Inc. | Amino acid derivatives containing a disulfanyl group as an inhibitor of NEP and APN for the prevention and treatment of trigeminal nerve pain |
| WO2021116617A1 (fr) | 2019-12-11 | 2021-06-17 | Pharmaleads | Procédé de préparation industrielle du sel disodique de ((2s)-3-([1,1'-biphenyl]-4-yl)-2-((hydroxy((1r)-1-(((1-(isobutyryloxy)ethoxy)carbonyl)amino)ethyl)phosphoryl)methyl)propanoyl)-l-alanine |
| FR3104581A1 (fr) | 2019-12-11 | 2021-06-18 | Pharmaleads | Procédé de préparation industrielle du sel disodique de ((2S)-3-([1,1'-biphenyl]-4-yl)-2-((hydroxy((1R)-1-(((1-(isobutyryloxy)ethoxy)carbonyl)amino)ethyl)phosphoryl) methyl)propanoyl)-L-alanine |
| US12391710B2 (en) | 2019-12-11 | 2025-08-19 | Kos Therapeutics, Inc. | Method for the industrial preparation of the disodium salt of ((2S)-3-([1,1′-biphenyl]-4-yl-2-((hydroxy((1R)-1-(((1-(isobutyryloxy)ethoxy)carbonyl)amino)ethyl)phosphoryl) methyl)propanoyl)-l-alanine |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA201101424B (en) | 2011-10-26 |
| FR2934267A1 (fr) | 2010-01-29 |
| EP2326655B1 (fr) | 2014-12-31 |
| JP5607045B2 (ja) | 2014-10-15 |
| RU2011106300A (ru) | 2012-08-27 |
| EP2740736B1 (fr) | 2015-12-09 |
| EP2740736A1 (fr) | 2014-06-11 |
| JP2011528692A (ja) | 2011-11-24 |
| CA2731544A1 (fr) | 2010-01-28 |
| US10131681B2 (en) | 2018-11-20 |
| HK1160471A1 (en) | 2012-08-17 |
| AU2009273238A1 (en) | 2010-01-28 |
| KR20110053336A (ko) | 2011-05-20 |
| MX2011000867A (es) | 2011-04-05 |
| ES2533851T3 (es) | 2015-04-15 |
| DK2740736T3 (en) | 2016-03-07 |
| FR2934267B1 (fr) | 2010-08-13 |
| DK2326655T3 (en) | 2015-04-13 |
| IL210760A0 (en) | 2011-03-31 |
| US8703747B2 (en) | 2014-04-22 |
| IL210760A (en) | 2014-06-30 |
| ES2561579T3 (es) | 2016-02-29 |
| US20110124601A1 (en) | 2011-05-26 |
| CN102149721A (zh) | 2011-08-10 |
| KR101631726B1 (ko) | 2016-06-17 |
| EP2326655A1 (fr) | 2011-06-01 |
| CA2731544C (fr) | 2017-08-22 |
| BRPI0916811B1 (pt) | 2022-02-01 |
| CN102149721B (zh) | 2015-01-28 |
| US20140161839A1 (en) | 2014-06-12 |
| BRPI0916811A2 (pt) | 2020-09-15 |
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