CH641810A5 - Acetamidocephalosporanic acid derivatives, process for their preparation and pharmaceutical forms which contain them - Google Patents
Acetamidocephalosporanic acid derivatives, process for their preparation and pharmaceutical forms which contain them Download PDFInfo
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- CH641810A5 CH641810A5 CH154579A CH154579A CH641810A5 CH 641810 A5 CH641810 A5 CH 641810A5 CH 154579 A CH154579 A CH 154579A CH 154579 A CH154579 A CH 154579A CH 641810 A5 CH641810 A5 CH 641810A5
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- 239000002253 acid Substances 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 7
- 238000002360 preparation method Methods 0.000 title claims description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 44
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 31
- 239000001257 hydrogen Substances 0.000 claims abstract description 31
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 22
- 150000003839 salts Chemical class 0.000 claims abstract description 19
- -1 carbamoyloxy Chemical group 0.000 claims abstract description 12
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 10
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 9
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 9
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 6
- 125000004414 alkyl thio group Chemical group 0.000 claims abstract description 6
- 125000004185 ester group Chemical group 0.000 claims abstract description 6
- 125000004183 alkoxy alkyl group Chemical group 0.000 claims abstract description 5
- 125000004181 carboxyalkyl group Chemical group 0.000 claims abstract description 5
- 125000004966 cyanoalkyl group Chemical group 0.000 claims abstract description 5
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims abstract description 5
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 30
- 150000002431 hydrogen Chemical class 0.000 claims description 14
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 9
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 9
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 8
- 125000006239 protecting group Chemical group 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 7
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 4
- 230000000844 anti-bacterial effect Effects 0.000 claims description 3
- 150000008065 acid anhydrides Chemical class 0.000 claims description 2
- 150000001540 azides Chemical class 0.000 claims description 2
- 230000003115 biocidal effect Effects 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 2
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 239000002552 dosage form Substances 0.000 claims description 2
- 150000004820 halides Chemical class 0.000 claims description 2
- 239000000546 pharmaceutical excipient Substances 0.000 claims description 2
- 150000002989 phenols Chemical class 0.000 claims description 2
- IUGYQRQAERSCNH-UHFFFAOYSA-N pivalic acid Chemical compound CC(C)(C)C(O)=O IUGYQRQAERSCNH-UHFFFAOYSA-N 0.000 claims description 2
- WHMDPDGBKYUEMW-UHFFFAOYSA-N pyridine-2-thiol Chemical compound SC1=CC=CC=N1 WHMDPDGBKYUEMW-UHFFFAOYSA-N 0.000 claims description 2
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 claims description 2
- 239000003242 anti bacterial agent Substances 0.000 abstract description 2
- 230000000845 anti-microbial effect Effects 0.000 abstract description 2
- 229940088710 antibiotic agent Drugs 0.000 abstract description 2
- 125000003668 acetyloxy group Chemical group [H]C([H])([H])C(=O)O[*] 0.000 abstract 1
- 125000003277 amino group Chemical group 0.000 abstract 1
- 125000003884 phenylalkyl group Chemical group 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- 239000000203 mixture Substances 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 6
- DOOVDXPRGGINTD-UHFFFAOYSA-N methyl 2-methoxyiminoacetate Chemical compound CON=CC(=O)OC DOOVDXPRGGINTD-UHFFFAOYSA-N 0.000 description 6
- MIHIJWOEDDPOLG-UHFFFAOYSA-N 2-methoxyiminoacetic acid Chemical compound CON=CC(O)=O MIHIJWOEDDPOLG-UHFFFAOYSA-N 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 159000000000 sodium salts Chemical class 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- HSHGZXNAXBPPDL-HZGVNTEJSA-N 7beta-aminocephalosporanic acid Chemical compound S1CC(COC(=O)C)=C(C([O-])=O)N2C(=O)[C@@H]([NH3+])[C@@H]12 HSHGZXNAXBPPDL-HZGVNTEJSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 2
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- LULXBAGMGMJJRW-UHFFFAOYSA-N n,2-bis(trimethylsilyl)acetamide Chemical compound C[Si](C)(C)CC(=O)N[Si](C)(C)C LULXBAGMGMJJRW-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 2
- 125000000453 2,2,2-trichloroethyl group Chemical group [H]C([H])(*)C(Cl)(Cl)Cl 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical compound C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 description 1
- 241000124008 Mammalia Species 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- ZSXGLVDWWRXATF-UHFFFAOYSA-N N,N-dimethylformamide dimethyl acetal Chemical compound COC(OC)N(C)C ZSXGLVDWWRXATF-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000005277 alkyl imino group Chemical group 0.000 description 1
- BIVUUOPIAYRCAP-UHFFFAOYSA-N aminoazanium;chloride Chemical compound Cl.NN BIVUUOPIAYRCAP-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 230000036765 blood level Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000005521 carbonamide group Chemical group 0.000 description 1
- PFKFTWBEEFSNDU-UHFFFAOYSA-N carbonyldiimidazole Chemical compound C1=CN=CN1C(=O)N1C=CN=C1 PFKFTWBEEFSNDU-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 125000001841 imino group Chemical group [H]N=* 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 229940126601 medicinal product Drugs 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- HDZGCSFEDULWCS-UHFFFAOYSA-N monomethylhydrazine Chemical compound CNN HDZGCSFEDULWCS-UHFFFAOYSA-N 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 125000000636 p-nitrophenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)[N+]([O-])=O 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000013207 serial dilution Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/12—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
-
- 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
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D231/18—One oxygen or sulfur atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D231/38—Nitrogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D231/38—Nitrogen atoms
- C07D231/40—Acylated on said nitrogen atom
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Communicable Diseases (AREA)
- Oncology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Cephalosporin Compounds (AREA)
Abstract
Compounds of the formula I <IMAGE> in which R1 represents hydrogen, an alkyl group, a phenylalkyl group, a carboxyalkyl group, an alkoxyalkyl group, a hydroxyalkyl group, a cyanoalkyl group or a carbamidoalkyl group, R2 represents hydrogen or an easily cleavable ester group, R3 represents the pyrazolyl radical, which is optionally substituted by an alkyl group, the phenyl group, the amino group an <IMAGE> group, an alkoxy group, an alkylthio group, the carboxyl group, the carbamido group or a carbalkoxy group, where R5 and R6 each represent an alkyl group, and R4 represents hydrogen, the acetoxy group, carbamoyloxy or 1-methyltetrazolylthio group, where the OR1 group can be in the Z- or E-position, and their salts. The compounds especially have antimicrobial properties and can be employed as antibacterially active antibiotics.
Description
**WARNUNG** Anfang DESC Feld konnte Ende CLMS uberlappen **.
PATENTANSPRÜCHE 1. Verbindungen der Formel I
EMI1.1
worin R, für Wasserstoff, eine Alkyl-, eine Phenalkyl-, eine Carboxyalkyl-, eine Alkoxyalkyl-, eine Hydroxyalkyl-, eine Cyanalkyl- oder eine Carbamidoalkylgruppe, R2 für Wasserstoff oder eine leicht spaltbare Estergruppe, R3 für den Pyrazolyrest, der gegebenenfalls durch eine Alkyl-, die Phenyl-, die Amino-, eine
EMI1.2
eine Alkoxy-, eine Alkylthio-, die Carboxy-, die Carbamidooder eine Carbalkoxygruppe, wobei Rs und R6 je für eine Alkylgruppe stehen, substituiert ist, und R4 für Wasserstoff, die Acetoxy-, Carbamoyloxy oder l-Methyltetrazolthiogruppe stehen, wobei die ORI-Gruppe in Z- oder E-Stellung sein kann, und ihre Salze.
2. 7-[(1-Methylpyrazolyl-5)methoximino]acetamido cephalosporansäure als Verbindung nach Anspruch 1.
3. 7-[(Pyrazolyl-3)methoximino]acetamidocephalosporan- säure als Verbindung nach Anspruch 1.
4. Eine Verbindung gemäss Anspruch 1 oder ein wasserlösliches, physiologisch verträgliches Salz davon als antibakteriell wirksames Antibiotikum.
5. Verfahren zur Herstellung von Verbindungen gemäss Patentanspruch 1 und ihre Salze, dadurch gekennzeichnet, dass man eine Verbindung der Formel
EMI1.3
worin R4 obige Bedeutung besitzt, R7 für Wasserstoff oder eine Aminoschutzgruppe und R2 für Wasserstoff oder eine Carboxylschutzgruppe stehen, mit einem funktionellen Derivat einer Carbonsäure der Formel
EMI1.4
worin Rl und R3 obige Bedeutung besitzen, oder auch mit der freien Carbonsäure der Formel III umsetzt, und gewünschtenfalls erhaltene Verbindungen der Formel I, worin R2 für Wasserstoff steht, in ihre Salze überführt oder umgekehrt.
6. Arzneiform enthaltend eine Verbindung gemäss Anspruch 1 oder ein wasserlösliches, physiologisch verträgliches Salz davon zusammen mit pharmakologisch indifferenten Hilfsstoffen.
Die Erfindung betrifft Verbindungen der Formel I
EMI1.5
worin Rl für Wasserstoff, eine Alkyl-, eine Phenalkyl-, eine Carboxyalkyl-, eine Alkoxyalkyl-, eine Hydroxyalkyl-, eine Cyanalkyl- oder eine Carbamidoalkylgruppe, R2 für Wasserstoff oder eine leicht spaltbare Estergruppe, R3 für den Pyrazolylrest, der gegebenenfalls durch eine Alkyl-, die Phenyl-, die Amino-, eine
EMI1.6
eine Alkoxy-, eine Alkylthio-, die Carboxy-, die Carbamidooder eine Carbalkoxygruppe, wobei Rs und R6 je für eine Alkylgruppe stehen, substituiert ist, und R4 für Wasserstoff, die Acetoxy-, Carbamoyloxy oder 1-Methyltetrazolthio- gruppe stehen, wobei die OR1-Gruppe in Z- oder E-Stellung sein kann, und ihre Salze.
Erfindungsgemäss geiangt man zu den Verbindungen der Formel I, indem man eine Verbindung der Formel
EMI1.7
worin R4 obige Bedeutung besitzt, R, für Wasserstoff oder eine Aminoschutzgruppe und R2 für Wasserstoff oder eine Carboxylschutzgruppe stehen, mit einem funktionellen Derivat einer Carbonsäure der Formel
EMI1.8
worin Rl und R3 obige Bedeutung besitzen, oder auch mit der freien Carbonsäure der Formel III umsetzt, und gewünsch tenfalls erhaltene Verbindungen der Formel I, worin R2 für Wasserstoff steht, in ihre Salze überführt oder umgekehrt.
Das erfindungsgemässe Verfahren kann beispielsweise ausgeführt werden, indem man eine Verbindung der Formel III oder ein reaktionsfähiges Derivat davon, z.B. ein Säurehalogenid, ein Säureanhydrid beispielsweise mit Pivalinsäure oder Kohlensäurehalbestern, einen aktivierten Komplex mit Dimethylformamid/Phosphoroxychlorid, ein Säureazid oder einen aktivierten Ester, wie er sich z.B. von Phenolen, cyclischen N-Hydroxyimiden oder heterocyclischen Thiolen wie 2-Pyridinthiol ableitet, in einem unter den Reaktionsbedingungen inerten Lösungsmittel, z.B. in einem chlorierten Kohlenwasserstoff löst oder suspendiert und zu einer Lösung oder Suspension einer Verbindung der Formel II in einem unter den Reaktionsbedingungen inerten Lösungsmittel z.B.
in einem Säureester wie Essigsäureäthylester zusetzt. Die
Reaktion wird vorzugsweise bei tiefer Temperatur z.B. bei 0 C durchgeführt. Bei Verwendung von Verbindungen der Formel III in Form der freien Carbonsäuren wird dem Reaktionsgemisch vorzugsweise ein Kondensationsmittel, z.B.
Dicyclohexylcarbodiimid oder Carbonyldiimidazol zugesetzt. Aus dem Reaktionsgemisch kann das Endprodukt nach an sich bekannten Methoden isoliert und gegebenenfalls gereinigt werden. Die verschiedenen Verbindungen der Formel I können untereinander verwandelt werden. So können z.B. freie Säure (R2=H) auf übliche Weise in entsprechenden Estern (leicht spaltbare Estergruppe) verwandelt werden und umgekehrt.
Die als Substituenten aufscheinenden Alkylgruppen stellen vorzugsweise niedere Alkylgruppen mit 1 bis 4, insbesondere mit 1 oder 2 Kohlenstoffatomen dar. Die OR.- Gruppe kann sich in Z- oder E-Stellung zur Carbonamidgruppe befinden, die Erfindung umfasst beide Möglichkeiten, wobei jedoch die Z-Stellung bevorzugt ist.
Die Verbindungen der Formel I, worin R2 für Wasserstoff steht, können in ihre Salze, z.B. in die Alkali-, Erdalkali- oder Ammoniumsalze überführt werden und umgekehrt. Die Verbindungen der Formel I und ihre Salze können auch als Hydrate vorliegen. Die Verbindungen der Formel I können als Racemate oder in Form von Isomeren auftreten.
Die Ausgangsprodukte der Formel III sind neu und können z.B. nach folgendem Formelschema erhalten werden:
EMI2.1
In diesen Formeln hat R, obige Bedeutung, Rs steht für eine Alkyl-, die Benzyl-, die 4-Nitrophenyl-, die 2,2,2-Trichlor äthyl-, die Phenyl- oder eine substituierte Phenylgruppe, Ro steht für Wasserstoff, Alkyl oder Phenyl, Rio bedeutet eine Alkylgruppe, R11 steht für eine Alkylgruppe, für Phenyl oder Wasserstoff und Ri2 bedeutet Wasserstoff, eine Alkyl-, die Imino-, eine Alkylimino-, eine Alkylthio- oder eine Alkoxygruppe. In die Verbindungen der Formel VII, VIII und IX lassen sich nach an sich bekannten Methoden die unter R3 angeführten Substituenten einführen.
Aus den Verbindungen der Formel VII, VIII und IX können nach an sich bekannten Methoden die freien Carbonsäuren der Formel III, bzw.
deren reaktionsfähigen Derivate erhalten werden.
Die Verbindungen der Formel I und ihre pharmakologisch verträglichen Salze besitzen bei geringer Toxizität interessante biologische, insbesondere antimikrobielle Eigenschaften und können daher als Heilmittel verwendet werden.
Sie entfalten eine Hemmwirkung gegen Bakterien, wie sich durch Untersuchungen in vitro mit dem Reihenverdünnungstest und in vivo durch Versuche an Mäusen unter Verwendung verschiedener Bakterienstämme zeigen lässt. Diese Hemmwirkung wurde ab einer Konzentration von ca. 0,1 bis 50 ,ug/ml, bzw. ab einer Dosis von ca. 15 bis 100 mg/kg Körpergewicht festgestellt. Daher können die erfindungsgemässen Verbindungen als antibakteriell wirksame Antibiotika verwendet werden.
Als Heilmittel können die Verbindungen der Formel I und gegebenenfalls ihre wasserlöslichen, physiologisch verträglichen Salze allein oder in geeigneten Arzneiformen gemeinsam mit anorganischen oder organischen, pharmakologisch indifferenten Hilfsstoffen verabreicht werden. Beispielsweise werden sie als Bestandteil von Kapseln, Injektions- oder Instillationszubereitungen eingesetzt, die eine zur Erreichung eines optimalen Blutspiegels ausreichende Menge aktiver Verbindungen enthalten, das sind ca. 10 bis 500 mg pro Kapsel. Für die Anwendung hängt die zu verabreichende Dosis von der verwendeten Verbindung und der Verabreichungsart sowie der Behandlungsart ab. Man erhält bei grös seren Säugetieren zufriedenstellende Ergebnisse bei Verabreichung einer täglichen Dosis von ca. 1 bis 6 g.
Diese Menge kann gegebenfalls in entsprechend kleineren Dosen zwei- bis viermal täglich oder in Retardform gegeben werden.
In den nachfolgenden Beispielen, die die Erfindung näher erläutern, ihren Umfang aber in keiner Weise einschränken sollen, erfolgen alle Temperaturangaben in Celsiusgraden.
Die Verbindungen liegen in der D-Form vor.
Beispiel 1 7-[(l-Methylpyrazolyl-5)methoximino] acetamidocephalosporansäure
1,5 ml trockenes Dimethylformamid und 1,7 ml Phosphoroxychlorid werden zusammen 1 Stunde auf 400erwärmt.
Nach Zugabe von 50 ml trockenem Dichlormethan wird die Lösung zur Trockne eingedampft, der Rückstand in 50 ml Essigester aufgenommen, bei 0 3,6 g l-Methylpyrazolyl-5methoximinoessigsäure zugegeben und 1 Stunde bei 0 gerührt. Diese Lösung wird anschliessend bei -20" zu einer Lösung von 5,4 g 7-Aminocephalosporansäure in 100 ml Essigester und 15 ml N,O-Bistrimethylsilylacetamid getropft.
Nach einer Reaktionszeit von 3 Stunden bei 200 wird mit 70 ml gesättigter Natriumchloridlösung versetzt, die organische Phase abgetrennt und die wässrige Phase noch 2x mit je 100 ml Essigester nachextrahiert. Die vereinigten Essigesterphasen werden nacheinanderje 2x mit 1 N Salzsäure, gesättigter Natriumchloridlösung und gesättigter Natriumbikarbonatlösung extrahiert. Die vereinigten Bikarbonatphasen werden von Lösungsmittelresten im Vakuum befreit und mit 2 N Salzsäure auf pH 2 gebracht. Die ausgefallenen Kristalle werden filtriert, mit Wasser gewaschen und getrocknet.
Man erhält die Titelverbindung vom Fp. 110"- 112". Zur Herstellung des Natriumsalzes werden 5 g der Säure in 980 mg Natriumbikarbonat/ 100 ml Wasser gelöst, 2x mit Essigester extrahiert und die wässrige Phase lyophili- siert. Fp. des Natriumsalzes: 157 (Zers.).
Beispiel 2 7-[(Pyrazolyl-3-)methoximino]acetamidocephalosporan- säure
Zu einer Suspension von 1,69 g (Pyrazolyl-3)methoximinoessigsäure und 2,3 g 2,2 -Dithiodipyridin in 50 ml trockenem Dichlormethan werden bei Raumtemperatur 2,7 g Triphenylphosphin gegeben und 30 Minuten bei Raumtemperatur gerührt. Die resultierende Suspension wird bei Raumtemperatur mit einer Lösung von 2,72 g 7-Aminocephalosporansäure in 100 ml trockenem Toluol und 7 ml N,O-Bis-trimethylsilylacetamid versetzt und 50 Stunden bei Raumtemperatur gerührt. Nach Einengen zur Trockne wird der Rückstand in 200 ml Essigester aufgenommen und sukzessive mit 5 x 50 ml I N Salzsäure, 5 x ml gesättigter Kochsalzlösung und 2 x 50 ml gesättigter Natriumbikarbonatlösung extrahiert.
Die vereinigten Bikarbonatphasen werden noch 3 x mit Essigester extrahiert, am Rotavapor von Lösungsmittelresten befreit und anschliessend mit konz. Salzsäure auf pH 2 gebracht. Durch Extraktion mit Essigester erhält man die Titelverbindung vom Fp. > 112 (Zers.). Zur Herstellung des Natriumsalzes werden 424 mg der Säure in 84 mg Natriumbikarbonat/10 ml Wasser gelöst und lyophilisiert. Fp. des Natriumsalzes: > 250 (Zers.).
Die benötigten Ausgangsprodukte können folgendermassen erhalten werden: (Pyrazolyl-3)methoximinoessigsäure (für Beispiel 2): a) (ss-Dimethylaminoacryloyl)methoximinoessigsäure- methylester
214,4 g a-Methoximinoacetessigsäuremethylester und 390 ml N,N-Dimethylformamiddimethylacetal werden in 300 ml Benzol 10 Stunden am Rückfluss gekocht. Nach dem Erkalten wird zur Trockne eingeengt und der dunkle Rückstand aus Äthanol umkristallisiert. Gelbe Kristalle, Fp: 63-64".
b) (Pyrazolyl-3)methoximinoessigsäuremethylester
21,4 g (I3-Dimethylaminoacryloyl)methoximinoessigsäure- methylester werden bei Raumtemperatur in 200 ml Wasser suspendiert und nach Zugabe von 20 g Hydrazin-monohydrochlorid und 20 ml 2-Propanol 30 Minuten zum Sieden erhitzt. Beim Kühlen kristallisiert die Titelverbindung, Fp: 70".
c) (Pyrazolyl-3)methoximinoessigsäure
38,8 g (Pyrazolyl-3)methoximinoessigsäuremethylester werden in 100 ml Äthanol/50 ml 4 N NaOH 3 Stunden auf 90" erwärmt. Nach der Kühlung auf 0 wird mit konz. Salzsäure auf pH 1 gestellt und auf ca. 20 ml konzentriert. Der gebildete Niederschlag wird aus 100 ml Wasser umkristallisiert. Es resultiert die Titelverbindung in Form eines Z/E-Gemisches (4:1), Afp. 1500.
(1 -Methylpyrazolyl-5)methoximinoessigsäure (für Beispiel 1)
15 g Monomethylhydrazin, 29,5 g Oxalsäure und 35 g (p-Dimethylaminoacryloyl)methoximinoessigsäuremethyl- ester werden in 500 ml Methanol 30 Minuten zum Sieden erhitzt. Nach dem Erkalten wird zur Trockne eingeengt, der Rückstand zwischen Äther und gesättigter Kochsalzlösung verteilt und das nach Einengen der Ätherphase verbleibende Öl an 2,5 kg Kieselgel chromatographiert.
Man erhält so (1 -Methylpyrazolyl-5)methoximinoessigsäuremethylester, Fp. 155-158", NMR (CDCL, ppm in 6): 7,42 (d, 1.8 Hz, 1 H); 6,32 (d,1.8 Hz, 1H); 4,08 (s,3H,NCH3); 4,02 (s,3H, NOCH3); 3,91 (s,3H,COOCH3) und (1-Methylpyrazolyl-3)essigsäure methylester, Fp. 160-165", NMR (CDCl3, ppm in o): 7,33 (d,2,5Hz,lH); 6,57 (d,2,5 Hz,lH; 3,99 (s,3H,NOCH3); 3,94 (s,3H,COOCH3); 2,88 (s,3H,NCH3). Durch alkalische Verseifung kann die Carbonsäure erhalten werden: (l-Methylpyra- zolyl-5)methoximinoessigsäure, Fp. 155-158".
** WARNING ** beginning of DESC field could overlap end of CLMS **.
PATENT CLAIMS 1. Compounds of Formula I
EMI1.1
wherein R, for hydrogen, an alkyl, a phenalkyl, a carboxyalkyl, an alkoxyalkyl, a hydroxyalkyl, a cyanoalkyl or a carbamidoalkyl group, R2 for hydrogen or an easily cleavable ester group, R3 for the pyrazole radical, which may be by an alkyl, a phenyl, an amino, a
EMI1.2
an alkoxy, an alkylthio, the carboxy, the carbamido or a carbalkoxy group, where Rs and R6 each represent an alkyl group, and R4 represents hydrogen, the acetoxy, carbamoyloxy or l-methyltetrazolthio group, the ORI- Group can be in the Z or E position, and their salts.
2. 7 - [(1-Methylpyrazolyl-5) methoximino] acetamido cephalosporanic acid as a compound according to claim 1.
3. 7 - [(Pyrazolyl-3) methoximino] acetamidocephalosporanic acid as a compound according to claim 1.
4. A compound according to claim 1 or a water-soluble, physiologically acceptable salt thereof as an antibacterial antibiotic.
5. A process for the preparation of compounds according to claim 1 and their salts, characterized in that a compound of the formula
EMI1.3
wherein R4 has the above meaning, R7 represents hydrogen or an amino protecting group and R2 represents hydrogen or a carboxyl protecting group, with a functional derivative of a carboxylic acid of the formula
EMI1.4
wherein Rl and R3 have the above meaning, or also reacted with the free carboxylic acid of the formula III, and, if desired, converted compounds of the formula I, in which R2 is hydrogen, into their salts or vice versa.
6. Dosage form containing a compound according to claim 1 or a water-soluble, physiologically acceptable salt thereof together with pharmacologically indifferent excipients.
The invention relates to compounds of the formula I.
EMI1.5
wherein Rl for hydrogen, an alkyl, a phenalkyl, a carboxyalkyl, an alkoxyalkyl, a hydroxyalkyl, a cyanoalkyl or a carbamidoalkyl group, R2 for hydrogen or an easily cleavable ester group, R3 for the pyrazolyl radical, which may be replaced by a Alkyl, phenyl, amino, one
EMI1.6
an alkoxy, an alkylthio, the carboxy, the carbamido or a carbalkoxy group, where Rs and R6 each represent an alkyl group, and R4 represents hydrogen, the acetoxy, carbamoyloxy or 1-methyltetrazole thio group, the OR1 group can be in the Z or E position, and their salts.
According to the invention, the compounds of the formula I are reached by using a compound of the formula
EMI1.7
wherein R4 has the above meaning, R, is hydrogen or an amino protecting group and R2 is hydrogen or a carboxyl protecting group, with a functional derivative of a carboxylic acid of the formula
EMI 1.8
in which Rl and R3 have the above meaning, or also reacted with the free carboxylic acid of the formula III, and, if desired, converted compounds of the formula I in which R2 is hydrogen, converted into their salts or vice versa.
The process according to the invention can be carried out, for example, by using a compound of formula III or a reactive derivative thereof, e.g. an acid halide, an acid anhydride, for example with pivalic acid or carbonic acid half-esters, an activated complex with dimethylformamide / phosphorus oxychloride, an acid azide or an activated ester, e.g. derived from phenols, cyclic N-hydroxyimides or heterocyclic thiols such as 2-pyridinthiol, in a solvent inert under the reaction conditions, e.g. dissolved or suspended in a chlorinated hydrocarbon and to a solution or suspension of a compound of formula II in a solvent inert under the reaction conditions e.g.
in an acid ester such as ethyl acetate. The
Reaction is preferably carried out at low temperature e.g. performed at 0 C. When using compounds of formula III in the form of the free carboxylic acids, a condensing agent, e.g.
Dicyclohexylcarbodiimid or Carbonyldiimidazol added. The end product can be isolated from the reaction mixture by known methods and optionally purified. The various compounds of formula I can be mutually converted. For example, free acid (R2 = H) can be converted in the usual way into corresponding esters (easily cleavable ester group) and vice versa.
The alkyl groups appearing as substituents are preferably lower alkyl groups with 1 to 4, in particular with 1 or 2 carbon atoms. The OR. Group can be in the Z or E position to the carbonamide group, the invention encompasses both possibilities, but the Z Position is preferred.
The compounds of formula I in which R2 is hydrogen can be converted into their salts, e.g. be converted into the alkali, alkaline earth or ammonium salts and vice versa. The compounds of formula I and their salts can also be present as hydrates. The compounds of formula I can occur as racemates or in the form of isomers.
The starting products of formula III are new and can e.g. can be obtained according to the following formula:
EMI2.1
In these formulas, R has the above meaning, Rs stands for an alkyl, the benzyl, the 4-nitrophenyl, the 2,2,2-trichloroethyl, the phenyl or a substituted phenyl group, Ro stands for hydrogen, Alkyl or phenyl, Rio means an alkyl group, R11 stands for an alkyl group, for phenyl or hydrogen and Ri2 means hydrogen, an alkyl, the imino, an alkylimino, an alkylthio or an alkoxy group. The substituents listed under R3 can be introduced into the compounds of the formulas VII, VIII and IX by methods known per se.
From the compounds of the formulas VII, VIII and IX, the free carboxylic acids of the formula III or
their reactive derivatives are obtained.
The compounds of the formula I and their pharmacologically tolerated salts have interesting biological, in particular antimicrobial, properties with low toxicity and can therefore be used as medicaments.
They develop an inhibitory effect against bacteria, as can be shown by tests in vitro with the serial dilution test and in vivo by tests on mice using different bacterial strains. This inhibitory effect was determined from a concentration of approx. 0.1 to 50 .mu.g / ml or from a dose of approx. 15 to 100 mg / kg body weight. The compounds according to the invention can therefore be used as antibacterial antibiotics.
The compounds of the formula I and, if appropriate, their water-soluble, physiologically tolerable salts can be administered as medicinal products alone or in suitable pharmaceutical forms together with inorganic or organic, pharmacologically indifferent auxiliaries. For example, they are used as a component of capsules, injection or instillation preparations that contain a sufficient amount of active compounds to achieve an optimal blood level, that is about 10 to 500 mg per capsule. For the application, the dose to be administered depends on the compound used and the mode of administration and the type of treatment. In larger mammals, satisfactory results are obtained when a daily dose of approximately 1 to 6 g is administered.
This amount can optionally be given in correspondingly smaller doses two to four times a day or in a sustained release form.
In the following examples, which explain the invention in more detail but are not intended to restrict its scope in any way, all the temperatures are given in degrees Celsius.
The connections are in the D form.
Example 1 7 - [(1-Methylpyrazolyl-5) methoximino] acetamidocephalosporanic acid
1.5 ml of dry dimethylformamide and 1.7 ml of phosphorus oxychloride are heated together to 400 for 1 hour.
After adding 50 ml of dry dichloromethane, the solution is evaporated to dryness, the residue is taken up in 50 ml of ethyl acetate, 3.6 g of l-methylpyrazolyl-5-methoximinoacetic acid are added at 0 and the mixture is stirred at 0 for 1 hour. This solution is then added dropwise at -20 "to a solution of 5.4 g of 7-aminocephalosporanic acid in 100 ml of ethyl acetate and 15 ml of N, O-bistrimethylsilylacetamide.
After a reaction time of 3 hours at 200, 70 ml of saturated sodium chloride solution are added, the organic phase is separated off and the aqueous phase is extracted twice with 100 ml of ethyl acetate each time. The combined ethyl acetate phases are extracted successively twice with 1N hydrochloric acid, saturated sodium chloride solution and saturated sodium bicarbonate solution. The combined bicarbonate phases are freed from solvent residues in vacuo and brought to pH 2 with 2 N hydrochloric acid. The precipitated crystals are filtered, washed with water and dried.
The title compound of mp 110 "- 112" is obtained. To prepare the sodium salt, 5 g of the acid are dissolved in 980 mg sodium bicarbonate / 100 ml water, extracted twice with ethyl acetate and the aqueous phase is lyophilized. Mp of the sodium salt: 157 (decomp.).
Example 2 7 - [(Pyrazolyl-3-) methoximino] acetamidocephalosporanic acid
2.7 g of triphenylphosphine are added at room temperature to a suspension of 1.69 g of (pyrazolyl-3) methoximinoacetic acid and 2.3 g of 2,2-dithiodipyridine in 50 ml of dry dichloromethane and the mixture is stirred at room temperature for 30 minutes. A solution of 2.72 g of 7-aminocephalosporanic acid in 100 ml of dry toluene and 7 ml of N, O-bis-trimethylsilylacetamide is added to the resulting suspension at room temperature and the mixture is stirred at room temperature for 50 hours. After concentration to dryness, the residue is taken up in 200 ml of ethyl acetate and extracted successively with 5 x 50 ml of IN hydrochloric acid, 5 x ml of saturated sodium chloride solution and 2 x 50 ml of saturated sodium bicarbonate solution.
The combined bicarbonate phases are extracted 3 times with ethyl acetate, freed from solvent residues on a Rotavapor and then with conc. Hydrochloric acid brought to pH 2. Extraction with ethyl acetate gives the title compound of mp> 112 (decomp.). To prepare the sodium salt, 424 mg of the acid are dissolved in 84 mg of sodium bicarbonate / 10 ml of water and lyophilized. Mp of the sodium salt:> 250 (decomp.).
The required starting products can be obtained as follows: (pyrazolyl-3) methoximinoacetic acid (for example 2): a) (ss-dimethylaminoacryloyl) methoximinoacetic acid methyl ester
214.4 g of methyl a-methoximinoacetoacetate and 390 ml of N, N-dimethylformamide dimethylacetal are refluxed in 300 ml of benzene for 10 hours. After cooling, the mixture is evaporated to dryness and the dark residue is recrystallized from ethanol. Yellow crystals, mp: 63-64 ".
b) (Pyrazolyl-3) methoximinoacetic acid methyl ester
21.4 g (I3-dimethylaminoacryloyl) methoximinoacetic acid methyl ester are suspended in 200 ml of water at room temperature and heated to boiling for 30 minutes after the addition of 20 g of hydrazine monohydrochloride and 20 ml of 2-propanol. The title compound crystallizes on cooling, mp: 70 ".
c) (Pyrazolyl-3) methoximinoacetic acid
38.8 g of (pyrazolyl-3) methoximinoacetic acid methyl ester are heated to 90 "in 100 ml of ethanol / 50 ml of 4N NaOH for 3 hours. After cooling to 0, the pH is adjusted to 1 with concentrated hydrochloric acid and the mixture is concentrated to about 20 ml. The precipitate formed is recrystallized from 100 ml of water, giving the title compound in the form of a Z / E mixture (4: 1), mp 1500.
(1-methylpyrazolyl-5) methoximinoacetic acid (for example 1)
15 g monomethylhydrazine, 29.5 g oxalic acid and 35 g (p-dimethylaminoacryloyl) methoximinoacetic acid methyl ester are heated to boiling in 500 ml methanol for 30 minutes. After cooling, the mixture is evaporated to dryness, the residue is partitioned between ether and saturated sodium chloride solution and the oil remaining after concentration of the ether phase is chromatographed on 2.5 kg of silica gel.
This gives (1-methylpyrazolyl-5) methoximinoacetic acid methyl ester, mp 155-158 ", NMR (CDCL, ppm in 6): 7.42 (d, 1.8 Hz, 1 H); 6.32 (d, 1.8 Hz, 1H); 4.08 (s, 3H, NCH3); 4.02 (s, 3H, NOCH3); 3.91 (s, 3H, COOCH3) and (1-methylpyrazolyl-3) methyl acetate, mp 160- 165 ", NMR (CDCl3, ppm in o): 7.33 (d, 2.5Hz, 1H); 6.57 (d, 2.5 Hz, 1H; 3.99 (s, 3H, NOCH3); 3.94 (s, 3H, COOCH3); 2.88 (s, 3H, NCH3). By alkaline saponification the carboxylic acid are obtained: (l-methylpyrazolyl-5) methoximinoacetic acid, mp. 155-158 ".
Claims (6)
Priority Applications (28)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH154579A CH641810A5 (en) | 1979-02-16 | 1979-02-16 | Acetamidocephalosporanic acid derivatives, process for their preparation and pharmaceutical forms which contain them |
| FI800381A FI800381A7 (en) | 1979-02-16 | 1980-02-07 | New cephalosporin derivatives, their preparation and use as antimicrobial agents. |
| SE8000982A SE8000982L (en) | 1979-02-16 | 1980-02-07 | NEW CEPHALOSPORIN DERIVATIVES, THEIR PREPARATION AND USE AS ANTIMICROBIAL AGENTS |
| DK53780A DK53780A (en) | 1979-02-16 | 1980-02-07 | PROCEDURE FOR THE PREPARATION OF CEPHALOSPORINE DERIVATIVES |
| BE1/9716A BE881641A (en) | 1979-02-16 | 1980-02-11 | NOVEL CEPHALOSPORIN DERIVATIVES, THEIR PREPARATION AND THEIR APPLICATION AS MEDICAMENTS |
| DE19803005012 DE3005012A1 (en) | 1979-02-16 | 1980-02-11 | NEW CEPHALOSPORINE DERIVATIVES, METHOD FOR THEIR PRODUCTION AND THEIR USE |
| GB8004696A GB2046734B (en) | 1979-02-16 | 1980-02-12 | 7-(-oximino-pyrazolyl(-acetamido)-cephen derivatives |
| NL8000894A NL8000894A (en) | 1979-02-16 | 1980-02-13 | NEW CEPHALOSPORINE DERIVATIVES AND METHODS FOR PREPARING AND USING THESE DERIVATIVES. |
| FR8003143A FR2449093A1 (en) | 1979-02-16 | 1980-02-13 | NOVEL CEPHALOSPORIN DERIVATIVES, THEIR PREPARATION AND THEIR APPLICATION AS MEDICAMENTS |
| YU00402/80A YU40280A (en) | 1979-02-16 | 1980-02-14 | Process for preparing new cephalosporin derivatives |
| CA000345659A CA1161032A (en) | 1979-02-16 | 1980-02-14 | Cephalosporin derivatives, their production and use as antimicrobial agents |
| AT0078780A AT374806B (en) | 1979-02-16 | 1980-02-14 | METHOD FOR PRODUCING NEW CEPHALOSPORINE DERIVATIVES |
| AU55535/80A AU541011B2 (en) | 1979-02-16 | 1980-02-14 | Cephalosporins |
| IE284/80A IE49395B1 (en) | 1979-02-16 | 1980-02-14 | New cephalosporin derivatives,their production and use as antimicrobial agents |
| NZ192873A NZ192873A (en) | 1979-02-16 | 1980-02-14 | Cephalosporin derivatives:preparation and pharmaceutical compositions |
| IL59391A IL59391A (en) | 1979-02-16 | 1980-02-14 | 7-pyrazolyl-oximinoacetylamino-cephalosporanic acid derivatives,their production and chemotherapeutical compositions containing them |
| IE1624/84A IE49396B1 (en) | 1979-02-16 | 1980-02-14 | Oximinoacetic acid derivatives |
| PT70834A PT70834A (en) | 1979-02-16 | 1980-02-14 | Process for the production of new cephalosporin derivatives having pharmaceutical properties |
| JP1844280A JPS55113794A (en) | 1979-02-16 | 1980-02-15 | Novel cephalosporin derivative*its manufacture and use as antibacterial |
| PH23650A PH17926A (en) | 1979-02-16 | 1980-02-15 | New cephalosporin derivatives,and pharmaceutical compositions containing same |
| IT8047922A IT8047922A0 (en) | 1979-02-16 | 1980-02-15 | CEPHALOSPORIN DERIVATIVES THEIR PREPARATION AND THEIR USE AS ANTIBIOTICS |
| ES488651A ES488651A0 (en) | 1979-02-16 | 1980-02-15 | PROCEDURE FOR PREPARING ACETIC ACID DERIVATIVES |
| ZA00800885A ZA80885B (en) | 1979-02-16 | 1980-02-15 | New cephalosporin derivatives, their production and use as antimicrobial agents |
| ES497002A ES8203848A1 (en) | 1979-02-16 | 1980-11-20 | Cephalosporin derivatives and use as antimicrobial agents |
| US06/390,323 US4477448A (en) | 1979-02-16 | 1982-06-21 | Cephalosporin derivatives and use as antimicrobial agents |
| GB08309730A GB2117774B (en) | 1979-02-16 | 1983-04-11 | Oximinoacetic acid derivatives |
| SE8500589A SE8500589D0 (en) | 1979-02-16 | 1985-02-08 | OXIMINOETTIKSYRADERIVAT |
| MY128/85A MY8500128A (en) | 1979-02-16 | 1985-12-30 | New cephalosporin derivatives, their production and use as antimicrobial agents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH154579A CH641810A5 (en) | 1979-02-16 | 1979-02-16 | Acetamidocephalosporanic acid derivatives, process for their preparation and pharmaceutical forms which contain them |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH641810A5 true CH641810A5 (en) | 1984-03-15 |
Family
ID=4212918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH154579A CH641810A5 (en) | 1979-02-16 | 1979-02-16 | Acetamidocephalosporanic acid derivatives, process for their preparation and pharmaceutical forms which contain them |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS55113794A (en) |
| BE (1) | BE881641A (en) |
| CH (1) | CH641810A5 (en) |
| ZA (1) | ZA80885B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH648038A5 (en) * | 1981-01-19 | 1985-02-28 | Sandoz Ag | 7-((carboxymethoxyimino)-1h-pyrazol-3-yl-acetyl)amino-3-desacetoxy-3-(1-methyl-1h-tetrazol-5-yl-thio)cephalosporansaeure and salts, method for production and use. |
-
1979
- 1979-02-16 CH CH154579A patent/CH641810A5/en not_active IP Right Cessation
-
1980
- 1980-02-11 BE BE1/9716A patent/BE881641A/en not_active IP Right Cessation
- 1980-02-15 ZA ZA00800885A patent/ZA80885B/en unknown
- 1980-02-15 JP JP1844280A patent/JPS55113794A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ZA80885B (en) | 1981-09-30 |
| BE881641A (en) | 1980-08-11 |
| JPS55113794A (en) | 1980-09-02 |
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