ES2550367T3 - Derivados de azetidina - Google Patents
Derivados de azetidina Download PDFInfo
- Publication number
- ES2550367T3 ES2550367T3 ES09716712.6T ES09716712T ES2550367T3 ES 2550367 T3 ES2550367 T3 ES 2550367T3 ES 09716712 T ES09716712 T ES 09716712T ES 2550367 T3 ES2550367 T3 ES 2550367T3
- Authority
- ES
- Spain
- Prior art keywords
- optionally substituted
- methyl
- ethoxy
- ring atoms
- yloxy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
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- 150000001539 azetidines Chemical class 0.000 title 1
- 150000001875 compounds Chemical class 0.000 abstract description 18
- -1 monofluoromethyl Chemical group 0.000 abstract description 4
- 125000006413 ring segment Chemical group 0.000 abstract 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract 2
- 239000001257 hydrogen Substances 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 abstract 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 abstract 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052794 bromium Inorganic materials 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 abstract 1
- 125000001028 difluoromethyl group Chemical group [H]C(F)(F)* 0.000 abstract 1
- 229910052731 fluorine Inorganic materials 0.000 abstract 1
- 239000011737 fluorine Substances 0.000 abstract 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 125000001424 substituent group Chemical group 0.000 abstract 1
- 125000003831 tetrazolyl group Chemical group 0.000 abstract 1
- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 abstract 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 30
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 28
- 239000002904 solvent Substances 0.000 description 24
- 239000000243 solution Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 14
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 235000019439 ethyl acetate Nutrition 0.000 description 12
- 239000000203 mixture Substances 0.000 description 11
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 10
- 238000004895 liquid chromatography mass spectrometry Methods 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- 239000011541 reaction mixture Substances 0.000 description 8
- 229920006395 saturated elastomer Polymers 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 6
- 238000005481 NMR spectroscopy Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 5
- 238000003818 flash chromatography Methods 0.000 description 5
- 239000012074 organic phase Substances 0.000 description 5
- 239000000741 silica gel Substances 0.000 description 5
- 229910002027 silica gel Inorganic materials 0.000 description 5
- 229910052938 sodium sulfate Inorganic materials 0.000 description 5
- 235000011152 sodium sulphate Nutrition 0.000 description 5
- 238000005160 1H NMR spectroscopy Methods 0.000 description 4
- AFABGHUZZDYHJO-UHFFFAOYSA-N 2-Methylpentane Chemical compound CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 4
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical compound [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 4
- 238000004128 high performance liquid chromatography Methods 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 4
- 235000017557 sodium bicarbonate Nutrition 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- QOZLFNQLIKOGDR-UHFFFAOYSA-N (2,5-dimethoxyphenyl)boronic acid Chemical compound COC1=CC=C(OC)C(B(O)O)=C1 QOZLFNQLIKOGDR-UHFFFAOYSA-N 0.000 description 2
- APFVZKRXHVQHRQ-UHFFFAOYSA-N 2-(1-benzhydrylazetidin-3-yl)oxy-5-iodopyridine Chemical compound N1=CC(I)=CC=C1OC1CN(C(C=2C=CC=CC=2)C=2C=CC=CC=2)C1 APFVZKRXHVQHRQ-UHFFFAOYSA-N 0.000 description 2
- TXFZBPGKAVFBKW-UHFFFAOYSA-N 2-(azetidin-3-yloxy)-5-iodopyridine;hydrochloride Chemical compound Cl.N1=CC(I)=CC=C1OC1CNC1 TXFZBPGKAVFBKW-UHFFFAOYSA-N 0.000 description 2
- LYEKTLKTMUOVCV-UHFFFAOYSA-N 2-bromo-1-methoxy-4-(2-methoxyethoxy)benzene Chemical compound COCCOC1=CC=C(OC)C(Br)=C1 LYEKTLKTMUOVCV-UHFFFAOYSA-N 0.000 description 2
- VRCGULWEKAWVCC-UHFFFAOYSA-N 3-(5-iodopyridin-2-yl)oxyazetidine-1-carboxylic acid Chemical compound C1N(C(=O)O)CC1OC1=CC=C(I)C=N1 VRCGULWEKAWVCC-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Natural products CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 2
- 239000005695 Ammonium acetate Substances 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 2
- 235000019257 ammonium acetate Nutrition 0.000 description 2
- 229940043376 ammonium acetate Drugs 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 239000012043 crude product Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- HXITXNWTGFUOAU-UHFFFAOYSA-N phenylboronic acid Chemical compound OB(O)C1=CC=CC=C1 HXITXNWTGFUOAU-UHFFFAOYSA-N 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 238000002953 preparative HPLC Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- WFWQWTPAPNEOFE-UHFFFAOYSA-N (3-hydroxyphenyl)boronic acid Chemical compound OB(O)C1=CC=CC(O)=C1 WFWQWTPAPNEOFE-UHFFFAOYSA-N 0.000 description 1
- KJTONRFPKXUHEU-UHFFFAOYSA-N (4-nitrophenyl) 3-(5-iodopyridin-2-yl)oxyazetidine-1-carboxylate Chemical compound C1=CC([N+](=O)[O-])=CC=C1OC(=O)N1CC(OC=2N=CC(I)=CC=2)C1 KJTONRFPKXUHEU-UHFFFAOYSA-N 0.000 description 1
- KZPYGQFFRCFCPP-UHFFFAOYSA-N 1,1'-bis(diphenylphosphino)ferrocene Chemical compound [Fe+2].C1=CC=C[C-]1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=C[C-]1P(C=1C=CC=CC=1)C1=CC=CC=C1 KZPYGQFFRCFCPP-UHFFFAOYSA-N 0.000 description 1
- MMAJXKGUZYDTHV-UHFFFAOYSA-N 1-benzhydrylazetidin-3-ol Chemical compound C1C(O)CN1C(C=1C=CC=CC=1)C1=CC=CC=C1 MMAJXKGUZYDTHV-UHFFFAOYSA-N 0.000 description 1
- YZUPZGFPHUVJKC-UHFFFAOYSA-N 1-bromo-2-methoxyethane Chemical compound COCCBr YZUPZGFPHUVJKC-UHFFFAOYSA-N 0.000 description 1
- QWLGCWXSNYKKDO-UHFFFAOYSA-N 2-chloro-5-iodopyridine Chemical compound ClC1=CC=C(I)C=N1 QWLGCWXSNYKKDO-UHFFFAOYSA-N 0.000 description 1
- XYZLQUMFZDMMFN-UHFFFAOYSA-N 3-(5-iodopyridin-2-yl)oxy-n-pyridazin-3-ylazetidine-1-carboxamide Chemical compound N1=CC(I)=CC=C1OC1CN(C(=O)NC=2N=NC=CC=2)C1 XYZLQUMFZDMMFN-UHFFFAOYSA-N 0.000 description 1
- IQXVTOJBOKMQPB-UHFFFAOYSA-N 3-(5-iodopyridin-2-yl)oxy-n-pyrimidin-4-ylazetidine-1-carboxamide Chemical compound N1=CC(I)=CC=C1OC1CN(C(=O)NC=2N=CN=CC=2)C1 IQXVTOJBOKMQPB-UHFFFAOYSA-N 0.000 description 1
- VSQUREFTKYDATG-UHFFFAOYSA-N 3-(5-phenylpyridin-2-yl)oxy-n-pyridazin-3-ylazetidine-1-carboxamide Chemical compound C1C(OC=2N=CC(=CC=2)C=2C=CC=CC=2)CN1C(=O)NC1=CC=CN=N1 VSQUREFTKYDATG-UHFFFAOYSA-N 0.000 description 1
- JQWUVQIJUMPKBT-UHFFFAOYSA-N 3-[5-(2,5-dimethoxyphenyl)pyridin-2-yl]oxy-n-pyridazin-3-ylazetidine-1-carboxamide Chemical compound COC1=CC=C(OC)C(C=2C=NC(OC3CN(C3)C(=O)NC=3N=NC=CC=3)=CC=2)=C1 JQWUVQIJUMPKBT-UHFFFAOYSA-N 0.000 description 1
- BYDXKBRWKDOLGO-UHFFFAOYSA-N 3-[5-(2,6-difluorophenyl)pyridin-2-yl]oxy-n-pyridazin-3-ylazetidine-1-carboxamide Chemical compound FC1=CC=CC(F)=C1C(C=N1)=CC=C1OC1CN(C(=O)NC=2N=NC=CC=2)C1 BYDXKBRWKDOLGO-UHFFFAOYSA-N 0.000 description 1
- CKTJAGNZSZBHQP-UHFFFAOYSA-N 3-[5-(3-hydroxyphenyl)pyridin-2-yl]oxy-n-pyridin-3-ylazetidine-1-carboxamide Chemical compound OC1=CC=CC(C=2C=NC(OC3CN(C3)C(=O)NC=3C=NC=CC=3)=CC=2)=C1 CKTJAGNZSZBHQP-UHFFFAOYSA-N 0.000 description 1
- YNZXNGQXSSMPCL-UHFFFAOYSA-N 3-[5-[2-methoxy-5-(2-methoxyethoxy)phenyl]pyridin-2-yl]oxy-n-pyridazin-3-ylazetidine-1-carboxamide Chemical compound COCCOC1=CC=C(OC)C(C=2C=NC(OC3CN(C3)C(=O)NC=3N=NC=CC=3)=CC=2)=C1 YNZXNGQXSSMPCL-UHFFFAOYSA-N 0.000 description 1
- KUYLWYGIJNQGJB-UHFFFAOYSA-N 3-[5-[3-(2-methoxyethoxy)phenyl]pyridin-2-yl]oxy-n-pyridin-3-ylazetidine-1-carboxamide Chemical compound COCCOC1=CC=CC(C=2C=NC(OC3CN(C3)C(=O)NC=3C=NC=CC=3)=CC=2)=C1 KUYLWYGIJNQGJB-UHFFFAOYSA-N 0.000 description 1
- XWQAAAKUKBKZNR-UHFFFAOYSA-N 3-[5-[3-(2-methoxyethoxy)phenyl]pyridin-2-yl]oxy-n-pyrimidin-4-ylazetidine-1-carboxamide Chemical compound COCCOC1=CC=CC(C=2C=NC(OC3CN(C3)C(=O)NC=3N=CN=CC=3)=CC=2)=C1 XWQAAAKUKBKZNR-UHFFFAOYSA-N 0.000 description 1
- CUYKNJBYIJFRCU-UHFFFAOYSA-N 3-aminopyridine Chemical compound NC1=CC=CN=C1 CUYKNJBYIJFRCU-UHFFFAOYSA-N 0.000 description 1
- NOJOUQQJSGRBMN-UHFFFAOYSA-N 3-bromo-4-methoxyphenol Chemical compound COC1=CC=C(O)C=C1Br NOJOUQQJSGRBMN-UHFFFAOYSA-N 0.000 description 1
- SHVVSKCXWMEDRW-UHFFFAOYSA-N 3-isocyanatopyridine Chemical compound O=C=NC1=CC=CN=C1 SHVVSKCXWMEDRW-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- ZADPBFCGQRWHPN-UHFFFAOYSA-N boronic acid Chemical compound OBO ZADPBFCGQRWHPN-UHFFFAOYSA-N 0.000 description 1
- RBHJBMIOOPYDBQ-UHFFFAOYSA-N carbon dioxide;propan-2-one Chemical compound O=C=O.CC(C)=O RBHJBMIOOPYDBQ-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- QOPVNWQGBQYBBP-UHFFFAOYSA-N chloroethyl chloroformate Chemical compound CC(Cl)OC(Cl)=O QOPVNWQGBQYBBP-UHFFFAOYSA-N 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- GCUVBACNBHGZRS-UHFFFAOYSA-N cyclopenta-1,3-diene cyclopenta-2,4-dien-1-yl(diphenyl)phosphane iron(2+) Chemical compound [Fe++].c1cc[cH-]c1.c1cc[c-](c1)P(c1ccccc1)c1ccccc1 GCUVBACNBHGZRS-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000007787 electrohydrodynamic spraying Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- BSCHIACBONPEOB-UHFFFAOYSA-N oxolane;hydrate Chemical compound O.C1CCOC1 BSCHIACBONPEOB-UHFFFAOYSA-N 0.000 description 1
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- NHDIQVFFNDKAQU-UHFFFAOYSA-N tripropan-2-yl borate Chemical compound CC(C)OB(OC(C)C)OC(C)C NHDIQVFFNDKAQU-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
- A61K31/506—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/397—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having four-membered rings, e.g. azetidine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
- A61K31/4427—Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
- A61K31/4427—Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems
- A61K31/4439—Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. omeprazole
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/4965—Non-condensed pyrazines
- A61K31/497—Non-condensed pyrazines containing further heterocyclic rings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/50—Pyridazines; Hydrogenated pyridazines
- A61K31/501—Pyridazines; Hydrogenated pyridazines not condensed and containing further heterocyclic rings
-
- A—HUMAN NECESSITIES
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Abstract
Un compuesto de fórmula (I), o una sal farmacéuticamente aceptable del mismo:**Fórmula** en la que Ar1 es fenilo opcionalmente sustituido o heteroarilo monocíclico con 5 ó 6 átomos de anillo, opcionalmente sustituido; Ar2 es fenilo opcionalmente sustituido, heteroarilo monocíclico con 5 ó 6 átomos de anillo, opcionalmente sustituido, o heteroarilo bicíclico fusionado, con 5 ó 6 átomos de anillo, opcionalmente sustituido; y Ar3 es un radical divalente seleccionado del grupo que consiste en fenileno opcionalmente sustituido y radicales de heteroarileno monocíclico, con 5 ó 6 átomos de anillo en cada anillo fusionado, opcionalmente sustituidos; y en donde cualquier sustituyente opcional en Ar1, Ar2 y Ar3 se selecciona, independientemente, de cloro, flúor, bromo, ciclopropilo, metilo, mono-, di- o tri-metilo, trifluorometilo, difluorometilo, monofluorometilo, metoxi, etoxi, propoxi, butoxi, pentoxi, 2-metoxietoxi, 2-benciloxi-etoxi, 2-hidroxi-etoxi, mono-, di- o tri-fluorometoxi, ciano, hidroxilo; -CO2R1 y -SO2R1, en donde R1 es hidrógeno, metilo o etilo; tetrazolilo; -NR2R3, -CH2NR2R3 y -C(>=O)NR2R3, en donde R2 y R3 son, independientemente, hidrógeno, metilo o etilo.
Description
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- Tiempo (min)
- Disolvente A (%) Disolvente B (%) Caudal (mL/min)
- 1,85
- 5 95 1,7
- 1,90
- 5 95 1,1
- 1,95
- 95 5 1,1
El análisis por resonancia magnética nuclear (RMN) se llevó a cabo con un espectrómetro de RMN Brucker DPX400 MHz. La referencia espectral fue la desviación química conocida del disolvente. Los datos de RMN de protones se notifican del modo siguiente: desviación química (δ) en ppm, multiplicidad (s = singlete; d = doblete; t = triplete; q = cuartete; p = pentete, m = multiplete; dd = doblete de dobletes; br = ancho), integración, constante de acoplamiento.
Algunos compuestos de la invención se purificaron por HPLC preparativa. Las purificaciones por HPLC preparativa se llevaron a cabo en un sistema de Autopurificación Waters FractionLynx MS, con una columna Gemini® de 5 μM C18(2), 100 mm x 20 mm d.i. de Phenomenex, con un caudal de circulación de 20 mL min-1, con detección por matriz de diodos UV (210 a 400 nm) y recolección dirigida por la masa. En la Tabla 1 se muestran los gradientes usados para cada compuesto. Los gradientes de disolventes apropiados para la elución del compuesto se determinaron para cada compuesto particular.
A pH 4: Disolvente A: Agua de calidad HPLC + acetato de amonio 10 mM + 0,08% v/v de ácido fórmico.
Disolvente B: 95% v/v de acetonitrilo de calidad HPLC + 5% v/v de Disolvente A + 0,08% v/v de ácido fórmico.
A pH 9: Disolvente A: Agua de calidad HPLC + acetato de amonio 10 mM + 0,08% v/v de solución de amoniaco.
Disolvente B: 95% v/v de acetonitrilo de calidad HPLC + 5% v/v de Disolvente A + 0,08% v/v de solución de amoniaco.
Con el uso de un espectrómetro de RMN Brucker DPX-400 MHz se llevó a cabo un análisis de resonancia magnética nuclear (RMN) de 1H (400 MHz) y 13C (100 MHz). La referencia espectral fue la desviación química conocida del disolvente de muestra. Se proporcionan los datos de RMN 1H indicando la desviación química (δ), la multiplicidad (s, singlete; d, doblete; t, triplete; q, cuartete; m, multiplete; dd, doblete de dobletes; br, ancho; app, aparente, etc.), la integración (por ejemplo, 1H), la(s) constante(s) de acoplamiento (J) en Hz. Los datos de 13C se notifican indicando la desviación química (δ). Los disolventes deuterados fueron adquiridos en las compañías Sigma-Aldrich Chemical Company o Fluorochem.
El espectrómetro de masa fue un dispositivo Waters Micromass ZQ2000 que funciona en modos de ionización por electro-pulverización de iones positivos o negativos, con una exploración de rango de peso molecular de 150 a 1000.
Los nombres químicos según la IUPAC se generaron usando el software AutoNom Standard.
Algunos compuestos de los ejemplos se prepararon por la vía indicada en el Esquema 1.
Esquema 1
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Esquema 2
Algunos compuestos de los ejemplos se prepararon por la vía indicada en el Esquema 3. Los expertos en la técnica de la síntesis orgánica conocerán los métodos experimentales, reactivos y métodos de aislamiento de producto. Se entiende que también se pueden usar otros métodos.
Esquema 3
Ejemplo 5 Pirimidin-4-ilamida del ácido 3-{5-[3-(2-metoxi-etoxi)-fenil]-piridin-2-iloxi}-azetidina-1-carboxílico
Etapa 1 2-(1-benzhidril-azetidin-3-iloxi)-5-yodo-piridina
A una solución de 1-benzhidril-azetidin-3-ol (25,38 g, 0,106 mol) en dimetilformamida anhidra (400 mL) se agregó, 15 bajo atmósfera de nitrógeno, hidruro sódico (dispersión al 60% en peso en aceite mineral, 6,36 g, 0,156 mol) en porciones. Esto determinó la formación de un precipitado y la aparición de efervescencia. Una vez terminada la
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adición, se agitó la mezcla de reacción a temperatura ambiente durante 15 min. Se agregó a la mezcla de reacción una solución de 2-cloro-5-yodo-piridina (25,40 g, 0,106 mol) en dimetilformamida (100 mL) a través de un embudo de goteo durante 15 min. Después de completar la adición, la mezcla de reacción se calentó a 70ºC y se agitó, bajo atmósfera de nitrógeno, durante 4,5 h. A continuación, la mezcla de reacción se dejó enfriar a temperatura ambiente y se agregó una solución acuosa saturada de cloruro de amonio (30 mL). Los disolventes se retiraron al vacío y el sólido residual se distribuyó entre acetato de etilo (600 mL) y solución acuosa saturada de bicarbonato sódico (500 mL). Se separaron las fases y la fase orgánica se lavó con solución acuosa saturada de cloruro sódico (3 x 300 mL), se secó sobre sulfato sódico, se filtró y se retiraron al vacío los disolventes del filtrado para dar un sólido de color amarillo-pardo, que se trituró con éter dietílico, se filtró y se secó al vacío para dar el compuesto del título en forma de un sólido de color beis (33,41 g; 71%).
LCMS (Método A), RT = 2,19 min; m/z = 443 [M+H]+
Etapa 2
Hidrocloruro de 2-(azetidin-3-iloxi)-5-yodo-piridina
A una solución agitada de 2-(1-benzhidril-azetidin-3-iloxi)-5-yodo-piridina (23,03 g, 0,052 mol) en diclorometano (250 mL) a temperatura ambiente se agregó, gota a gota a través de una jeringa, cloroformiato de 1-cloroetilo (12,8 mL, 0,104 mol). La solución resultante se agitó a temperatura ambiente durante 3,5 h, a continuación, se agregó metanol (250 mL) y se agitó la mezcla de reacción a temperatura ambiente durante 16 h. Entonces, se retiraron los disolventes al vacío y se trituró el residuo sólido resultante con éter dietílico, se filtró y se secó al vacío para dar el producto del título en forma de un sólido de color crema (17,8 g, rendimiento > cuantitativo). El producto crudo se usó directamente, sin purificación adicional.
LCMS (Método A), RT = 1,24 min; m/z = 277 [M+H]+
Etapa 3
(Intermedio 5)
Éster de 4-nitro-fenilo del ácido 3-(5-yodo-piridin-2-iloxi)-azetidina-1-carboxílico
A una solución agitada de 2-(1-benzhidril-azetidin-3-iloxi)-5-yodo-piridina (1,01 g, 2,29 mol) en diclorometano (40 mL) a temperatura ambiente, se agregó cloroformiato de 4-nitrofenilo (692 mg, 3,44 mmol). La solución resultante se agitó a temperatura ambiente durante 18 h. El disolvente se retiró al vacío y el producto se purificó por cromatografía instantánea sobre gel de sílice (25 g), eluyendo con diclorometano para dar el compuesto del título en forma de un sólido incoloro (474 mg, 47%).
LCMS (Método A) RT = 2,54 min; m/z = 442 [M+H]+. RMN 1H (400 MHz; DMSO-d6) δ 3,95 – 4,04 (m, 1H), 4,16 – 4,24 (m, 1H), 4,36 – 4,44 (m, 1H), 4,56 – 4,74 (m, 1H), 5,35 – 5,40 (m, 1H), 6,84 (d, 1H, J = 8,5 Hz), 7,43 – 7,47 (m, 2H), 8,07 (dd, 1H, J = 8,5, 2,2 Hz), 8,26 – 8,29 (m, 2H), 8,38 (d, 1H, J = 2,1 Hz).
Etapa 4
Pirimidin-4-ilamida del ácido 3-(5-yodo-piridin-2-iloxi)-azetidina-1-carboxílico
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Etapa 1 Piridin-3-ilamida del ácido 3-(yodo-piridin-2-iloxi)-azetidina-1-carboxílico
5 Se suspendió hidrocloruro de 2-(azetidin-3-iloxi)-5-yodo-piridina (4,2 g, 13 mmol) en diclorometano anhidro (50 mL) y se agregó trietilamina (5,5 mL). Se agregó 3-isocianato de piridina (1,45 g, 11,7 mmol) y la mezcla de reacción se agitó a temperatura ambiente durante 16 h. Los disolventes de la suspensión se retiraron al vacío y el residuo se distribuyó entre acetato de etilo (400 mL) y solución acuosa saturada de bicarbonato sódico (400 mL). La mezclase filtró a través de una almohadilla de Celita y se separaron las fases del filtrado. La fase orgánica se lavó con solución
10 acuosa saturada de bicarbonato sódico (250 mL), a continuación, solución acuosa saturada de cloruro sódico (250 mL), se secó sobre sulfato sódico y se filtró. Se retiraron al vacío los disolventes del filtrado para dar un sólido de color amarillo que se purificó por cromatografía instantánea sobre gel de sílice (100 g), eluyendo con una mezcla de
1:19 de solución de amoniaco 7N en metanol : diclorometano. Se obtiene de este modo el compuesto del título (2,0 g, 42%) en forma de sólido incoloro.
15 LCMS (Método A) RT = 1,04 min; m/z = 397 [M+H]+.
Etapa 2
Piridin-3-ilamida del ácido 3-[5-(3-hidroxi-fenil)-piridin-2-iloxi]-azetidina-1-carboxílico
Este compuesto se preparó por el método esbozado para la Etapa 6 del Ejemplo 5. De este modo, se hizo
20 reaccionar piridin-3-ilamida del ácido 3-(5-yodo-piridin-2-iloxi)-azetidina-1-carboxílico (300 mg, 0,76 mmol) con ácido 3-hidroxifenilborónico (156 mg, 1,14 mmol) para dar un producto crudo que se purificó por cromatografía instantánea sobre gel de sílice, eluyendo con un gradiente de disolventes de 1:19 a 1:9 de solución de amoniaco 7N en metanol : diclorometano. Se obtiene así el compuesto del título (130 mg, 47%) como un polvo incoloro.
LCMS (Método A) RT = 0,97 min; m/z = 363 [M+H]+.
25 Etapa 3
Piridin-3-ilamida del ácido 3-{5-[3-(2-metoxi-etoxi)-fenil]-piridin-2-iloxi}-azetidina-1-carboxílico
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A una solución de éster 3-bromo-4-metoxi-fenílico de ácido acético (1,2 g, 4,9 mmol) en metanol (18,5 mL) se agregó una solución de hidróxido de potasio (290 mg, 5,19 mmol) en agua (2,5 mL). La mezcla se agitó a temperatura ambiente durante 30 min y, a continuación, los disolventes se retiraron al vacío y se agregó agua (40
5 mL). La mezcla se acidificó por la adición gota a gota de una solución acuosa 1,2 M de HCl (4,3 mL) y se extrajo la mezcla con diclorometano (2 x 40 mL). Las fases orgánicas combinadas se secaron sobre sulfato sódico, se filtraron y los disolventes del filtrado se evaporaron al vacío para dar el compuesto del título (976 mg, 98%) como un sólido de color amarillo pálido.
LCMS: (Método A) RT = 2,11 min; sin ionización.
10 TLC: Rf = 0,28 (1:4 EtOAc : hexano).
Etapa 4
2-bromo-1-metoxi-4-(2-metoxi-etoxi)-benceno
A una mezcla de carbonato de potasio (136 mg, 0,99 mmol) y 3-bromo-4-metoxi-fenol (100 mg, 0,49 mmol) en DMF
15 (2 mL) se agregó éter metílico de 2-bromoetilo (0,07 mL, 0,74 mmol), y la mezcla se calentó a 100ºC durante 1 h. Se dejó enfriar la mezcla de reacción y se distribuyó entre acetato de etilo (20 mL x 2) y agua (20 mL). Las fases orgánicas combinadas se lavaron con solución acuosa saturada de cloruro sódico (40 mL) y se secaron sobre sulfato sódico. Los disolventes se retiraron al vacío para dar un aceite crudo que se purificó por cromatografía instantánea sobre gel de sílice, eluyendo con un gradiente de 0 a 10% de acetato de etilo en hexano para dar el
20 compuesto del título (113 mg, 88%) como un líquido incoloro.
LCMS: (Método A) RT = 2,12 min; sin ionización.
TLC: Rf = 0,34 (1:4 EtOAc : hexano).
Etapa 5
Piridazin-3-ilamida del ácido 3-{5-[2-metoxi-5-(2-metoxi-etoxi)-fenil]-piridin-2-iloxi}-azetidina-1-carboxílico
Una solución de 2-bromo-1-metoxi-4-(2-metoxi-etoxi)-benceno (110 mg, 0,42 mmol) en THF anhidro (2 mL) se enfrió a -78ºC con un baño de CO2-acetona bajo atmósfera de nitrógeno. Se agregó borato de tri-isopropilo (0,19 mL, 0,842 mmol), seguido de una solución de n-butil-litio (2,5M en hexanos, 0,22 mL, 0,55 mmol). Se dejó a la mezcla alcanzar la temperatura ambiente, se retiraron al vacío los disolventes para dar un sólido incoloro. Al ácido borónico 30 crudo se agregó piridazin-3-ilamida del ácido 3-(5-yodo-piridin-2-iloxi)-azetidina-1-carboxílico (Ejemplo 7, Etapa 1)
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40
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(150 mg, 0,38 mmol), solución acuosa 1M de bicarbonato sódico (1,26 mL), DMF (7 mL) y complejo de 1,1’bis[(difenilfosfino)-ferroceno]dicloro-paladio(II) con CH2Cl2 (15 mg). Se hizo burbujear gas nitrógeno a través de la mezcla durante 5 min y se calentó la mezcla de reacción a 80ºC durante 2 h. La mezcla se dejó enfriar, se distribuyó entre acetato de etilo (30 mL) y agua (30 mL). Se separó la fase orgánica, que se lavó con solución acuosa saturada de cloruro sódico (60 mL) y se secó sobre sulfato sódico. Se retiraron al vacío los disolventes para dar un aceite crudo que se purificó por cromatografía instantánea sobre gel de sílice, eluyendo con un gradiente de 0 a 10% de acetato de etilo en hexano para dar el compuesto del título (77 mg, 41%) como una espuma de color amarillo pálido.
LCMS: (Método A) RT = 1,94 min; m/z = 450 [M-H]-(ionización negativa).
TLC: Rf = 0,21 (100% EtOAc)
RMN 1H (400 MHz; CDCl3) δ 3,45 (s, 3H), 3,75 (m, 2H), 3,77 (s, 3H), 4,12 (m, 2H), 4,21 (m, 2H), 4,56 (m, 2H), 5,48 (m, 1H), 6,83 (d, 1H, J = 8,6 Hz), 6,91 (m, 3H), 7,42 (dd, 1H, J = 9,1, 4,8 Hz), 7,47 (s ancho, 1H), 7,82 (dd, 1H, J = 8,6, 2,5 Hz), 8,25 (d, 1H, J = 2,3 Hz), 8,38 (dd, 1H, J = 9,1, 1,3 Hz), 8,84 (dd, 1H, J = 4,5, 1,3 Hz).
Ejemplo 12
Piridazin-3-ilamida del ácido 3-[5-(2,5-dimetoxi-fenil)-piridin-2-iloxi]-azetidina-1-carboxílico
Este compuesto se preparó por el método esbozado para la Etapa 6 del Ejemplo 5. De esta forma, se hizo reaccionar piridazin-3-ilamida del ácido 3-(5-yodo-piridin-2-iloxi)-azetidina-1-carboxílico (100 mg, 0,25 mmol) con ácido 2,5-dimetoxi-benceno-borónico (Nº CAS 107099-99-0, 69 mg, 0,38 mmol) para dar el compuesto del título (84 mg, 83%) como un polvo blancuzco.
LCMS: (Método B) RT = 1,19 min; m/z = 408 [M+H]+
RMN 1H (400 MHz; DMSO-d6) δ 3,72 (s, 3H), 3,75 (s, 3H), 4,00 – 4,08 (m, 2H), 4,46 – 4,51 (m, 2H), 5,36 – 5,41 (m, 1H), 6,91 – 6,97 (m, 3H), 7,04 – 7,06 (m, 1H), 7,58 (dd, 1H, J = 4,5, 9,1 Hz), 7,89 (dd, 1H, J = 2,3, 8,6 Hz), 8,15 (dd, 1H, J = 1,5, 9,1 Hz), 8,27 (d, 1H, J = 1,7 Hz), 8,85 (dd, 1H, J = 1,4, 4,6 Hz), 9,96 (s, 1H).
Ejemplo 13
Piridazin-3-ilamida del ácido 3-(5-fenil-piridin-2-iloxi)-azetidina-1-carboxílico
Este compuesto se preparó por el método esbozado para la Etapa 6 del Ejemplo 5. De esta forma, se mezclaron piridazin-3-ilamida del ácido 3-(5-yodo-piridin-2-iloxi)-azetidina-1-carboxílico (750 mg, 1,89 mmol), ácido bencenoborónico (345 mg, 2,83 mmol), carbonato de potasio (783 mg, 5,67 mmol), [1,1’-bis(difenilfosfino)-ferroceno]dicloropaladio(II) (complejo con diclorometano; 155 mg, 0,19 mmol) y THF-H2O (10:1, 15 mL), se sellaron en dos viales para microondas y se calentaron a 100ºC durante 2 horas. Los viales se combinaron, se evaporaron y se cargaron en un cartucho de 50 g de SiO2 en DCM, secando exhaustivamente. El producto se eluyó con 1:1 iso-hexano : EtOAc a EtOAc y el producto obtenido tras la evaporación de las fracciones que contuvieron producto se trituró en
2:1 éter dietílico : iso-hexano y se recogió por filtración, para dar el producto (702 mg, 54%) como un polvo blanco; p.f., 201 a 202ºC; Rf, 0,17 (EtOAc); LCMS RT, 1,19 min [Método B], m/z 348 ([M+H]+, 100%); ()H (399 MHz; DMSOd6) 9,97 (1H, s ancho), 8,85 (1H, dd, J = 4,5 y 1,3 Hz), 8,48 (1H, dd, J = 2,5 y 0,5 Hz), 8,15 (1H, dd, J = 9,1 y 4,5 Hz), 8,08 (1H, dd, J = 8,6, 2,5 Hz), 7,68 – 7,66 (2H, m), 7,59 (1H, dd, J = 9,1 y 4,5 Hz), 7,49 – 7,45 (2H, m), 7,39 – 7,36 (1H, m), 7,01 (1H, dd, J = 8,6 y 0,5 Hz), 5,40 (1H, tt, J = 6,6 y 4,0 Hz), 4,48 (2H, dd, J = 8,6 y 6,6 Hz), y 4,04 (2H, dd, J = 9,6 y 3,0 Hz).
Ejemplo 14
Piridazin-3-ilamida del ácido 3-[5-(2,6-difluoro-fenil)-piridin-2-iloxi]-azetidina-1-carboxílico
24
Claims (1)
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| GBGB0821694.7A GB0821694D0 (en) | 2008-11-27 | 2008-11-27 | Azetidine derivatives |
| GB0821694 | 2008-11-27 | ||
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