EP2120960A2 - NOUVEAUX ANTIBIOTIQUES À BASE DE ß-LACTAME, LEUR PROCÉDÉ DE PRODUCTION ET LEUR UTILISATION - Google Patents

NOUVEAUX ANTIBIOTIQUES À BASE DE ß-LACTAME, LEUR PROCÉDÉ DE PRODUCTION ET LEUR UTILISATION

Info

Publication number
EP2120960A2
EP2120960A2 EP08708525A EP08708525A EP2120960A2 EP 2120960 A2 EP2120960 A2 EP 2120960A2 EP 08708525 A EP08708525 A EP 08708525A EP 08708525 A EP08708525 A EP 08708525A EP 2120960 A2 EP2120960 A2 EP 2120960A2
Authority
EP
European Patent Office
Prior art keywords
formula
acid
bicarbonate
polyhexamethylene biguanide
cooch
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.)
Withdrawn
Application number
EP08708525A
Other languages
German (de)
English (en)
Inventor
Wolf-Dieter Juelich
Ulrike Lindequist
Annett Mikolasch
Sabine Witt
Frieder Schauer
Roland Ohme
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dritte Patentportfolio Beteiligungs GmbH and Co KG
Original Assignee
Dritte Patentportfolio Beteiligungs GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dritte Patentportfolio Beteiligungs GmbH and Co KG filed Critical Dritte Patentportfolio Beteiligungs GmbH and Co KG
Priority to EP08708525A priority Critical patent/EP2120960A2/fr
Publication of EP2120960A2 publication Critical patent/EP2120960A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D501/00—Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
    • C07D501/14—Compounds having a nitrogen atom directly attached in position 7
    • C07D501/16—Compounds having a nitrogen atom directly attached in position 7 with a double bond between positions 2 and 3
    • C07D501/20—7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids
    • C07D501/22—7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids with radicals containing only hydrogen and carbon atoms, attached in position 3
    • 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
    • A61K31/13—Amines
    • A61K31/155—Amidines (), e.g. guanidine (H2N—C(=NH)—NH2), isourea (N=C(OH)—NH2), isothiourea (—N=C(SH)—NH2)
    • 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
    • A61K31/54—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and one sulfur as the ring hetero atoms, e.g. sulthiame
    • A61K31/542—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and one sulfur as the ring hetero atoms, e.g. sulthiame ortho- or peri-condensed with heterocyclic ring systems
    • A61K31/545—Compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins, cefaclor, or cephalexine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/04—Antibacterial agents
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D513/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups C07D463/00, C07D477/00 or C07D499/00 - C07D507/00
    • C07D513/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups C07D463/00, C07D477/00 or C07D499/00 - C07D507/00 in which the condensed system contains two hetero rings
    • C07D513/04—Ortho-condensed systems

Definitions

  • Novel ⁇ -lactam antibiotics process for their preparation and their use
  • the invention relates to novel antimicrobial agents based on ß-lactam derivatives and their use as antibiotics.
  • the ⁇ -lactam antibiotics are among the most widely used antibiotics.
  • the cephalosporins like the structurally closely related carbacephems and penicillins, inhibit bacterial cell wall synthesis and are bactericidal only in the growth phase of the bacteria.
  • the antibiotic group of cephalosporins has been intensively processed.
  • the clinically used derivatives are usually derived from the parent 7-aminocephalosporanic acid, with changes to the body as Rl substitution in position 7, as R2 substitution in position 3 and in the cephamycins by an additional methoxy group in position 7 were made.
  • cephalosporins and the carbacephems offer better possibilities for structural modification and effect optimization than penicillins, as evidenced by the high number of synthesized cephalo sporin derivatives (Gräfe U. Biochemistry of antibiotics.) Spektrum Akademischer Verlag Heidelberg, Berlin, New York, 1992 ).
  • esterification of the carboxyl group of cephalosporins corresponds to the prior art, for example: M. Murakami; M. Hajima; Takami; M. Yoshioka (Heterocylces, 1990, 31, 2055-264).
  • the esterification leads u.a. to better absorbable derivatives.
  • enzymes can be used to enable a reaction under mild conditions. Lipases catalyze esterification with a wide variety of substrates (Ching et al., Angew Chem 101, 711-724, 1989).
  • Formula 1 is known as microbicid and has been introduced into the practice of disinfection and antiseptics under the names Vantocil IR, polihexanide, Lavasept R or PHMB-HCl, and is used especially as a wound antiseptic, as well as adjuvant for wound treatment in the surgical treatment of acute and chronic bones and soft tissue infections. It is a polymer mixture of different molecular weight ranges, the separation of which previously could only be detected by chromatography, but could not be carried out preparatively. The known microbieiden effects therefore always relate to the polymer mixture and are not optimized. In medicine, only mixtures of polymers having a different number of subunits than hydrochloride have hitherto been used. Common are polymers with 4 to 7 units and a molecular weight of 900 to 1300 g / mol. The recovery of pure polymer fractions has not been successful. The purification of the polymer mixture for the purposes of medical application is difficult and expensive.
  • the object of the present invention is therefore to provide new active ingredients.
  • the invention is in particular the object of the existing by the increasing development of bacteria resistance to conventional antibiotics needs in human and veterinary medicine by structural and effect modified antibiotics to be derived from clinically proven drugs.
  • the invention also relates to processes for the preparation of the ⁇ -lactam antibiotics according to the invention, including intermediates.
  • processes for the preparation of the ⁇ -lactam antibiotics according to the invention including intermediates.
  • ⁇ -lactam antibiotics according to formula 3 which consist of a derivative of 6-aminopenicillanic acid or 7-aminocephalosporanic acid as anionic component X " and derivatives of polyhexamethylene biguanide as cationic components, have proved to be highly effective Active ingredient according to the invention effects in all inhibited, even in the strains in which both the cationic active ingredient as the hydrochloride and the anion (ie the antibiotic without cationic component) are ineffective.
  • the active compounds of the invention according to formula 3 are therefore suitable for the anti-infective wound treatment of acute and chronic wounds including the use for irrigation-suction-drainage and anti-infective lavage of body cavities.
  • Formula 2 in a concentration of 0.01 to 0.03% particularly advantageous results in 0.02% is that the germ killing is limited to the suction pad. As a result, the classification as a medical device is not restricted despite antimicrobial equipment.
  • the hydroxy groups of the substrates of the polyphenol oxidases can be arranged in accordance with formula 6 and formula 9 para or o / t / zo-constantly.
  • Particularly preferred for the synthesis of the new drugs the amination of 2,5-dihydroxybenzoic acid derivatives with laccase EC 1-10.3.2. (Classification according to International Enzyme Nomenclature, Enzyme Nomenclature, Academic Press, Ine, 1192, pp. 24-154), which leads to broad possibilities of derivatization.
  • the amination with catechols according to the invention is limited to active compounds according to formula 8.
  • the active compounds according to the invention are characterized in that the new substituents change the application properties, without influencing functional groups.
  • the active compounds according to the invention therefore have advantages as previously known ⁇ -lactam antibiotics, namely high bactericidal activity with low toxicity.
  • the radicals required for the novel synthesis of the new active substances can be produced by biological, chemical and / or physical means. Particular preference is given to free radicals which are produced by using supernatants of ligninolytic fungi and / or from the supernatants of isolated radical-forming enzymes be generated.
  • Laccase from Trametes sp. be used for the synthesis of new drugs.
  • a process for the purification of polyhexamethylene biguanides is provided by the invention, which is characterized in that polyhexamethylene biguanide hydrochloride (formula image 1) is precipitated in aqueous solution with alkali metal bicarbonate, the precipitate is separated from the mother liquor and hydrochloric acid is returned to purified product according to formula image 1 back.
  • polyhexamethylene biguanide hydrochloride (formula image 1) is precipitated in aqueous solution with alkali metal bicarbonate, the precipitate is separated from the mother liquor and hydrochloric acid is returned to purified product according to formula image 1 back.
  • ß-lactam antibiotics according to formula 3, obtainable by salt formation from derivatives of 6-aminopenicillanic acid or 7-aminocephalosporanic acid as anionic
  • Component X and derivatives of polyhexamethylene biguanide as a cation provided for the first time.
  • ⁇ -lactam antibiotics according to formula image 4 obtainable from commercially available active compounds according to formula 5 by reaction with active ingredients by
  • a process for the separation of polyhexamethylene biguanide into molecular weight ranges is described, characterized in that polyhexamethylene biguanide hydrochloride is precipitated in aqueous solution with alkali metal bicarbonate, the precipitation taking place partially and stepwise, with fractionation into narrower molecular weight ranges of the polymer.
  • the active compounds according to formula image 3 are characterized in that Polyhexamethylenbiguanid hydrochloride is fractionated in aqueous solution with alkali metal bicarbonate to Polyhexamethylenbiguanid hydrogen carbonate and the precipitated products with antibiotics which exceed the bicarbonate in their acidity, be implemented. It is also possible that the anionic component is an antimicrobial fatty acid.
  • the solubility and distribution behavior of the active ingredients can be varied by fractional precipitation of the cationic component.
  • the invention also provides a process for the purification of polyols. Hexamethylenbiguanid, characterized in that Polyhexamethylenbiguanid hydrochloride (formula image 1) is precipitated in aqueous solution with alkali metal bicarbonate, the precipitate separated from the mother liquor and transferred with hydrochloric acid in purified product of formula image 1 back.
  • new salts of polyhexamethylene biguanide are obtained by reacting the polyhexamethylene biguanide hydrogencarbonate with inorganic or organic acids.
  • a use according to the invention is an antimicrobial finishing of absorbent dressings, characterized in that the equipment with a sparingly soluble salt of Hexamethylenbiguanids by immersion and / or spraying, wherein a concentration is maintained, at which no significant diffusion of biguanide into the wound he follows.
  • R 4 CONHCH 2 CH 2 OH, CONH 2 , COOCH 3 , COOH, COCH 3 , CHO, CH 3 , 3, C (CH 3 ) 3 , C 6 H 5 , Cl, Br, OCH 3 ,
  • R 5 CONHCH 2 CH 2 OH, CONH 2 , COOCH 3 , COOCH 2 CH 3 , COOH, COCH 3 , CHO, CH 3 , CH 2 (CH 2 ) 0 . 20 CH 3, C (CH 3) 3, C 6 H 5, Cl, Br, OCH 3, O (CH 2) 20 CH 3 0 _
  • R 4 CONHCH 2 CH 2 OH, CONH 2 , COOCH 3 , COOH, COCH 3 , CHO, CH 3 , 3, C (CH 3 ) 3 , C 6 H 5 , Cl, Br, OCH 3 ,
  • R 5 CONHCH 2 CH 2 OH, CONH 2 , COOCH 3 ,
  • COOCH 2 CH 3 COOH, COCH 3 , CHO, CH 3 , CH 2 (CH 2 V 20 CH 3 , C (CH 3 ) 3 , C 6 H 5 , Cl, Br, OCH 3 , O (CH 2 ) 0 _ 20 CH 3
  • Example 36 The structural analysis and the tests for biological activity of Examples 1- Example 36 are based on the names of the structural elements and the substances corresponding to the formula 10.
  • FIG. 1 shows the storage stability of 7- ⁇ 2- [2- (2-hydroxyethylcarbamoyl) -3,6-dioxocyclohexa-1,4-dienylamino] -2- (4-hydroxyphenyl) -acetylamino ⁇ -decetoxycephalosporanic acid 1 a.
  • the test bacteria Escherichia coli SBUG 1135 and Bacillus megaterium SBUG 1152 are grown overnight (17 hours at 37 ° C.) in 5 ml of nutrient broth II.
  • the incubation takes place in a shaking incubator (INFORS AG CH 4103, Bottmingen, Switzerland) at a shaking frequency of 180 rpm.
  • Escherichia coli has a cell density of approx. 2.4 ⁇ 10 10 cells / ml and Bacillus megaterium of approx 2, IxIO 8 cells / ml.
  • the seeding of the bacteria in the agar is chosen so that develop after the incubation dense, but not confluent single colonies.
  • Bacillus megaterium 0.1 ml of the undiluted overnight culture (overnight) in 10 ml
  • Nutrient agar corresponds to a cell number of 10 6 .
  • Escherichia coli the TS is diluted 1: 100 with saline, of which 0.1 ml is transferred to 10 ml of nutrient agar. That corresponds to a cell number of 10 6 .
  • the inoculated nutrient agar is placed in sterile petri dishes and dried to some
  • Test for antimicrobial activity The test substances are added in graduated quantities (10 ⁇ g, 50 ⁇ g, 100 ⁇ g)
  • Drug carrier (sensi-dics) applied.
  • the test substances are used in methanol or
  • Each inoculated plate is equipped with 3 test leaflets.
  • the Hemmhöfe can be measured to the individual test leaflets.
  • the Hemmhof can be measured to the individual test leaflets.
  • the Hemmhof is given in mm.
  • the bacteria are cultivated on Müller-Hinton Agar II plates.
  • McFarland 0.5 (which corresponds to a bacterial density of 15OxIO 6 germs) produced. With A small drop of the bacterial suspension is then placed on the Müller-Hinton agar plate on a sterile glass rod and streaked in three planes (vertical, horizontal and transverse). Thereafter, the sensi-disc are launched with the new semisynthetic test substances. The stocked plates are incubated for 18-20 hours at 37 ° C. After incubation, the inhibition zone diameters are read as a measure of the antimicrobial activity of the new semisynthetic test substances.
  • the active compounds according to formula 7 are effective against a broad spectrum of germs (Table 4).
  • the detection was carried out on the "mouse ear test" model: After killing the animals, the mouse ears are cut off and clamped in a special holding device The contamination of the ears is carried out with 5 ⁇ l of a 1:10 diluted suspension of the MRSA strain " North German epidemic strain "with an optical density corresponding to the McFarland standard 0.5. After incubation for 1.5 h at 30 ° C., the treatment with the active compounds according to the invention according to Example 6 takes place in half of the ears and the other half remains untreated. The evaluation of the growing bacterial colonies takes place after 24 h incubation at 37 ° C.
  • the lipids are heated to a temperature of 50 0 C and then the active ingredient used according to Example 1 dispersed therein. Separately, an aqueous emulsifier solution is heated to the appropriate temperature (5O 0 C). Thereafter, both phases are combined at the desired homogenization temperature. The mixture is then processed using an Ultra Turax T25 from Janke and Kunkel GmbH & Co KG (Staufen, Germany) in an emulsification process at 8000 revolutions per minute and a duration of 30 seconds.
  • the suspension is then reacted with a piston-gap high-pressure homogenizer Micron Lab 40 (APV-Gaulin, Lubeck) at a pressure of 500 bar and a temperature of 5O 0 C homogenised four times.
  • the resulting formulation was tested for antimicrobial efficacy when applied to the skin as described in Example 9.
  • Example 11 Antimicrobial Activity in vivo of the New Substances of Formula 4 (Example 1 - Example 4)
  • mice On day 0, at least 3 BALB / c mice per test substance (Tab. 8) or
  • a colony of the test germ is transferred from a covered agar plate (Mueller-Hinton agar, Beckton Dickinson) to a vial with 10 ml of CASO broth (C ASO-B., Soy peptone-casein peptone broth, SIFIN, 30 g / l) and cultivated overnight at 37 0 C and a shaking frequency of 250U / min.
  • C ASO-B. Soy peptone-casein peptone broth, SIFIN, 30 g / l
  • Vk the preculture (Vk) is 1:50 with CASO-B. diluted and cultivated for about 2 hours until an absorbance in the medium of 0.6 at a wavelength of 550 nm is reached. Then Ix is washed with PBS at room temperature and readjusted to an absorbance of 0.6.
  • At least 3 animals for a test substance or controls are infected with 10 .mu.l / g body weight germs of a bacterial suspension with extinction 0.6 (about 10 10 - 10 12 CFU, colony forming units) ip infected.
  • mice antibiotic solution in a volume of 200 ul PBS with 3% DMSO i.p. injected. 6 hours later, the second antibiotic injection takes place in the same concentration.
  • mice antibiotic solution in a volume of 200 ul PBS with 3% DMSO i.p. injected. Result
  • the distribution coefficient of the analyte can be determined from the
  • the new active ingredients have a strong antimicrobial effect (Table 7).
  • FIG. 2 shows the storage stability of the 3-chloro-7- ⁇ 2- [2- (2-hydroxyethylcarbamoyl) -3,6-dioxocyclohexa 1,4-dienylamino] -2-phenyl-acetylamino ⁇ -8-oxo-1-thia-5-azabicyclo [4.2.0] oct-3-ene-4-carboxylic acid Ii.
  • FIG. 3 shows the storage stability of the 3-chloro-7- ⁇ 2- [2- (2-hydroxyethylcarbamoyl) -3,6-dioxocyclohexa], 4-dienylamino] -2-phenyl-acetylamino ⁇ -8-oxo-5 azabicyclo [4.2.0] oct-3-ene-4-carboxylic acid Im.
  • Example 33 Antimicrobial action of the novel compounds according to formula 4 (Example 29 - Example
  • the new active ingredients have a strong antimicrobial effect (Table 13). Tab. 13 Antimicrobial effect of the new active ingredients in up to Ip and 2d.
  • Example 35 Antimicrobial activity in vivo of the new substances according to formula 4 (Example 29 - Example 32)
  • Example 37 - Example 41 The structural analysis and the biological activity tests of Example 37 - Example 41 are based on the names of the structural elements and the substances corresponding to the formula 11.
  • a layer of the absorbent core was cut into 2 large pieces. These were soaked with differently concentrated suspensions of the active substance according to formula image 3 and tested for germ reduction in the agar test.
  • the microbial suspensions were plated out using the Whitley Automatic Spiral Plater (WASP) linear. This resulted in agar plates with a uniform bacterial growth.
  • WASP Whitley Automatic Spiral Plater
  • the areas to which the dressings were to be applied were marked and the control areas precisely determined. These areas were each pipetted with 25 ⁇ l saline. Uncoated compress material and wound dressings coated with the substances according to the invention were placed in these drops and lightly pressed on.
  • the plates were 15min to Pre-diffusion allowed to stand at room temperature until placed in the incubator (37 ° C).
  • the areas of the wound dressings were marked.
  • the bacteria were counted on the areas below the wound dressings and in the control areas, which had been treated only with saline.
  • the wound dressings were transferred to fresh agar to count any surviving germs.
  • FIG. 4 shows the schematic representation of the filter experimental setup
  • the active ingredient according to formula image 2 was treated with a mixture of different fatty acids (tetradecanoic acid, pentadecanoic acid, hexadecanoic acid, cis-9-hexadecenoic acid, octadecanoic acid, cis-9-octadecenoic acid, cis-9,12-octadecadienoic acid, obtained by n-hexane extraction from microalgae extractor DIONEX ASE 200). Suction compresses were coated with the resulting product at a concentration of 0.01%.
  • Example 46 incorporation into a cellulose gel methodology
  • mucous membranes formulation of the invention shows the best efficacy.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Communicable Diseases (AREA)
  • Oncology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Cephalosporin Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

L'invention concerne de nouveaux principes actifs antimicrobiens à base de dérivés de ß-lactame. Ces nouveaux principes actifs sont produits, d'une part, par réaction de dérivés de ß-lactame connus avec des substrats de polyphénoloxydases sous l'influence de radicaux libres et, d'autre part, par salification de dérivés de ß-lactame quelconques avec de l'hydrogénocarbonate de polyhexaméthylène biguanide. Ces nouveaux composés conviennent comme antibiotiques.
EP08708525A 2007-01-31 2008-01-31 NOUVEAUX ANTIBIOTIQUES À BASE DE ß-LACTAME, LEUR PROCÉDÉ DE PRODUCTION ET LEUR UTILISATION Withdrawn EP2120960A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08708525A EP2120960A2 (fr) 2007-01-31 2008-01-31 NOUVEAUX ANTIBIOTIQUES À BASE DE ß-LACTAME, LEUR PROCÉDÉ DE PRODUCTION ET LEUR UTILISATION

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP07101519 2007-01-31
EP08708525A EP2120960A2 (fr) 2007-01-31 2008-01-31 NOUVEAUX ANTIBIOTIQUES À BASE DE ß-LACTAME, LEUR PROCÉDÉ DE PRODUCTION ET LEUR UTILISATION
PCT/EP2008/051214 WO2008092928A2 (fr) 2007-01-31 2008-01-31 NOUVEAUX ANTIBIOTIQUES À BASE DE ß-LACTAME, LEUR PROCÉDÉ DE PRODUCTION ET LEUR UTILISATION

Publications (1)

Publication Number Publication Date
EP2120960A2 true EP2120960A2 (fr) 2009-11-25

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Country Status (10)

Country Link
US (1) US20110040086A1 (fr)
EP (1) EP2120960A2 (fr)
JP (1) JP2010516800A (fr)
KR (1) KR20090104891A (fr)
CN (1) CN101657200A (fr)
AU (1) AU2008209747A1 (fr)
BR (1) BRPI0807466A2 (fr)
CA (1) CA2677044A1 (fr)
RU (1) RU2009132521A (fr)
WO (1) WO2008092928A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2925334A1 (fr) * 2007-12-21 2009-06-26 Ceva Sante Animale Sa Nouvelles compositions antibacteriennes
JP5745303B2 (ja) * 2011-03-29 2015-07-08 株式会社シナネンゼオミック 抗微生物用水処理剤および水処理方法
GB201117538D0 (en) * 2011-10-11 2011-11-23 Royal Veterinary College The Methods

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Publication number Priority date Publication date Assignee Title
US2631146A (en) * 1952-11-13 1953-03-10 American Cyanamid Co Biguanide salts of penicillin
GB1434040A (en) * 1973-08-06 1976-04-28 Ici Ltd Process for combating fungi and bacteria
US20020146385A1 (en) * 2001-04-10 2002-10-10 Lin Tung Liang Ionic antimicrobial coating
DE60302326T2 (de) * 2003-01-16 2006-07-27 Xylos Corp. Wundauflage mit amorphem Hydrogel auf Basis mikrobiell veränderter Cellulose
WO2006052201A1 (fr) * 2004-11-10 2006-05-18 Neobiotics Ab Utilisation de derives de dipeptides pour la fabrication d'un medicament destine au traitement d'infections microbiennes

Non-Patent Citations (1)

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Title
See references of WO2008092928A2 *

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Publication number Publication date
JP2010516800A (ja) 2010-05-20
RU2009132521A (ru) 2011-03-10
CN101657200A (zh) 2010-02-24
BRPI0807466A2 (pt) 2014-05-06
KR20090104891A (ko) 2009-10-06
WO2008092928A3 (fr) 2009-02-12
WO2008092928A9 (fr) 2010-04-29
AU2008209747A1 (en) 2008-08-07
WO2008092928A4 (fr) 2009-04-02
US20110040086A1 (en) 2011-02-17
CA2677044A1 (fr) 2008-08-07
WO2008092928A2 (fr) 2008-08-07

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