CH615184A5 - - Google Patents
Download PDFInfo
- Publication number
- CH615184A5 CH615184A5 CH1184975A CH1184975A CH615184A5 CH 615184 A5 CH615184 A5 CH 615184A5 CH 1184975 A CH1184975 A CH 1184975A CH 1184975 A CH1184975 A CH 1184975A CH 615184 A5 CH615184 A5 CH 615184A5
- Authority
- CH
- Switzerland
- Prior art keywords
- acid
- reaction
- solvent
- mixture
- chloride
- Prior art date
Links
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 46
- 239000000203 mixture Substances 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 25
- 239000002904 solvent Substances 0.000 claims description 23
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 21
- 238000005917 acylation reaction Methods 0.000 claims description 21
- 239000011541 reaction mixture Substances 0.000 claims description 21
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- MLYYVTUWGNIJIB-BXKDBHETSA-N cefazolin Chemical compound S1C(C)=NN=C1SCC1=C(C(O)=O)N2C(=O)[C@@H](NC(=O)CN3N=NN=C3)[C@H]2SC1 MLYYVTUWGNIJIB-BXKDBHETSA-N 0.000 claims description 17
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 15
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- 230000010933 acylation Effects 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- NVHOFJBFYVRQOH-UHFFFAOYSA-N 2-(tetrazol-1-yl)acetyl chloride Chemical compound ClC(=O)CN1C=NN=N1 NVHOFJBFYVRQOH-UHFFFAOYSA-N 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000012453 solvate Substances 0.000 claims description 11
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 claims description 10
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 9
- 229960001139 cefazolin Drugs 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- -1 tetrazole acetyl chloride Chemical class 0.000 claims description 6
- 239000007858 starting material Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229930186147 Cephalosporin Natural products 0.000 claims description 3
- 239000012346 acetyl chloride Substances 0.000 claims description 3
- 229940124587 cephalosporin Drugs 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 239000002585 base Substances 0.000 claims description 2
- 150000001780 cephalosporins Chemical class 0.000 claims description 2
- 125000000896 monocarboxylic acid group Chemical group 0.000 claims description 2
- 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 claims 4
- 239000002879 Lewis base Substances 0.000 claims 3
- 150000007527 lewis bases Chemical class 0.000 claims 3
- FEWLNYSYJNLUOO-UHFFFAOYSA-N 1-Piperidinecarboxaldehyde Chemical compound O=CN1CCCCC1 FEWLNYSYJNLUOO-UHFFFAOYSA-N 0.000 claims 2
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 claims 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims 2
- 239000012442 inert solvent Substances 0.000 claims 2
- LCEDQNDDFOCWGG-UHFFFAOYSA-N morpholine-4-carbaldehyde Chemical compound O=CN1CCOCC1 LCEDQNDDFOCWGG-UHFFFAOYSA-N 0.000 claims 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- XFTIKWYXFSNCQF-UHFFFAOYSA-N N,N-dipropylformamide Chemical compound CCCN(C=O)CCC XFTIKWYXFSNCQF-UHFFFAOYSA-N 0.000 claims 1
- SUAKHGWARZSWIH-UHFFFAOYSA-N N,N‐diethylformamide Chemical compound CCN(CC)C=O SUAKHGWARZSWIH-UHFFFAOYSA-N 0.000 claims 1
- YZDAFWLIMRVDNP-UHFFFAOYSA-N acetonitrile;n,n-dimethylacetamide Chemical compound CC#N.CN(C)C(C)=O YZDAFWLIMRVDNP-UHFFFAOYSA-N 0.000 claims 1
- 125000003668 acetyloxy group Chemical group [H]C([H])([H])C(=O)O[*] 0.000 claims 1
- 150000001266 acyl halides Chemical class 0.000 claims 1
- 229950008644 adicillin Drugs 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 claims 1
- 125000001309 chloro group Chemical group Cl* 0.000 claims 1
- 239000003085 diluting agent Substances 0.000 claims 1
- 230000008570 general process Effects 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- NZMAJUHVSZBJHL-UHFFFAOYSA-N n,n-dibutylformamide Chemical compound CCCCN(C=O)CCCC NZMAJUHVSZBJHL-UHFFFAOYSA-N 0.000 claims 1
- AJFDBNQQDYLMJN-UHFFFAOYSA-N n,n-diethylacetamide Chemical compound CCN(CC)C(C)=O AJFDBNQQDYLMJN-UHFFFAOYSA-N 0.000 claims 1
- BNODIVYXTGTUPS-UHFFFAOYSA-N n,n-dimethylpentanamide Chemical compound CCCCC(=O)N(C)C BNODIVYXTGTUPS-UHFFFAOYSA-N 0.000 claims 1
- MBHINSULENHCMF-UHFFFAOYSA-N n,n-dimethylpropanamide Chemical compound CCC(=O)N(C)C MBHINSULENHCMF-UHFFFAOYSA-N 0.000 claims 1
- MIFYHUACUWQUKT-GPUHXXMPSA-N penicillin N Chemical compound OC(=O)[C@H]1C(C)(C)S[C@@H]2[C@H](NC(=O)CCC[C@@H](N)C(O)=O)C(=O)N21 MIFYHUACUWQUKT-GPUHXXMPSA-N 0.000 claims 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims 1
- 108090000623 proteins and genes Proteins 0.000 claims 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 description 12
- GRWAIJBHBCCLGS-UHFFFAOYSA-N 2-(tetrazol-1-yl)acetic acid Chemical compound OC(=O)CN1C=NN=N1 GRWAIJBHBCCLGS-UHFFFAOYSA-N 0.000 description 7
- 239000002244 precipitate Substances 0.000 description 6
- 239000005051 trimethylchlorosilane Substances 0.000 description 6
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 5
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000000376 reactant Substances 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000006184 cosolvent Substances 0.000 description 4
- 239000001632 sodium acetate Substances 0.000 description 4
- 235000017281 sodium acetate Nutrition 0.000 description 4
- 239000011877 solvent mixture Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000012429 reaction media Substances 0.000 description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 2
- CSDQQAQKBAQLLE-UHFFFAOYSA-N 4-(4-chlorophenyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine Chemical compound C1=CC(Cl)=CC=C1C1C(C=CS2)=C2CCN1 CSDQQAQKBAQLLE-UHFFFAOYSA-N 0.000 description 1
- QCQCHGYLTSGIGX-GHXANHINSA-N 4-[[(3ar,5ar,5br,7ar,9s,11ar,11br,13as)-5a,5b,8,8,11a-pentamethyl-3a-[(5-methylpyridine-3-carbonyl)amino]-2-oxo-1-propan-2-yl-4,5,6,7,7a,9,10,11,11b,12,13,13a-dodecahydro-3h-cyclopenta[a]chrysen-9-yl]oxy]-2,2-dimethyl-4-oxobutanoic acid Chemical compound N([C@@]12CC[C@@]3(C)[C@]4(C)CC[C@H]5C(C)(C)[C@@H](OC(=O)CC(C)(C)C(O)=O)CC[C@]5(C)[C@H]4CC[C@@H]3C1=C(C(C2)=O)C(C)C)C(=O)C1=CN=CC(C)=C1 QCQCHGYLTSGIGX-GHXANHINSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 125000000066 S-methyl group Chemical group [H]C([H])([H])S* 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- UHZYTMXLRWXGPK-UHFFFAOYSA-N phosphorus pentachloride Chemical compound ClP(Cl)(Cl)(Cl)Cl UHZYTMXLRWXGPK-UHFFFAOYSA-N 0.000 description 1
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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
- C07D501/24—7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids with hydrocarbon radicals, substituted by hetero atoms or hetero rings, attached in position 3
- C07D501/36—Methylene radicals, substituted by sulfur atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cephalosporin Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/505,304 US3954745A (en) | 1974-09-12 | 1974-09-12 | Process for preparing cefazolin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH615184A5 true CH615184A5 (xx) | 1980-01-15 |
Family
ID=24009783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1184975A CH615184A5 (xx) | 1974-09-12 | 1975-09-12 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3954745A (xx) |
| JP (1) | JPS5148688A (xx) |
| BE (1) | BE833245A (xx) |
| CA (1) | CA1052769A (xx) |
| CH (1) | CH615184A5 (xx) |
| DE (1) | DE2540374C2 (xx) |
| FR (1) | FR2284608A1 (xx) |
| GB (1) | GB1516863A (xx) |
| IE (1) | IE41280B1 (xx) |
| IL (1) | IL47856A (xx) |
| NL (1) | NL180318C (xx) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR223653A1 (es) * | 1977-09-27 | 1981-09-15 | Toyama Chemical Co Ltd | Procedimiento de preparacion del acido 7-(d(-)-alpha-(4-etil-2,3-dioxo-1-piperazinocarboxamido)-alpha-(4-hidroxifenil)acetamido)-3-(5-(1-metil-1,2,3,4-tetrazolil)tiometil)-delta3-cefem-4-carboxilico y su producto de adicion con n,n-dimetilacetamida |
| IT1180207B (it) * | 1984-07-30 | 1987-09-23 | Istituto Biochimico Italiano | Procedimento per la preparazione, con resa e purezza elevate, di antibiotici beta-lattamici |
| JPS63287565A (ja) * | 1987-05-19 | 1988-11-24 | 小松電子金属株式会社 | 半導体用シリコンの破砕方法 |
| IT1265341B1 (it) * | 1993-07-16 | 1996-11-22 | Farmabios Srl | Procedimento per la preparazione di cefalosporine |
| JPH10101679A (ja) * | 1996-10-02 | 1998-04-21 | Otsuka Chem Co Ltd | セファゾリンの製造法 |
| EP0953569A1 (en) * | 1998-04-29 | 1999-11-03 | Gist-Brocades B.V. | Preparation of beta-lactam antibiotics in the presence of urea or amide |
| EP1379531A2 (en) | 2001-04-19 | 2004-01-14 | Bioferma Murcia, S.A. | Enzymatic process for preparing cephalosporanic acid derivatives using alpha-ketoacid derivatives |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1104937A (en) * | 1964-05-28 | 1968-03-06 | Glaxo Lab Ltd | Improvements in or relating to the acylation of 7-aminocephalosporanic acid and derivatives thereof |
| CH527215A (de) * | 1967-04-15 | 1972-08-31 | Fujisawa Pharmaceutical Co | Verfahren zur Herstellung von 3,7-disubstituierten Cephalosporinderivaten |
| BE793191A (fr) * | 1971-12-28 | 1973-06-22 | Toyama Chemical Co Ltd | Procede pour produire des acides 7-acylamido-3-cephem-4- carboxyliques |
-
1974
- 1974-09-12 US US05/505,304 patent/US3954745A/en not_active Expired - Lifetime
-
1975
- 1975-07-25 CA CA232,267A patent/CA1052769A/en not_active Expired
- 1975-07-28 IE IE1685/75A patent/IE41280B1/xx unknown
- 1975-08-03 IL IL47856A patent/IL47856A/xx unknown
- 1975-08-29 JP JP50105546A patent/JPS5148688A/ja active Granted
- 1975-09-01 GB GB35926/75A patent/GB1516863A/en not_active Expired
- 1975-09-10 BE BE1006874A patent/BE833245A/xx not_active IP Right Cessation
- 1975-09-10 FR FR7527773A patent/FR2284608A1/fr active Granted
- 1975-09-10 DE DE2540374A patent/DE2540374C2/de not_active Expired
- 1975-09-11 NL NLAANVRAGE7510738,A patent/NL180318C/xx not_active IP Right Cessation
- 1975-09-12 CH CH1184975A patent/CH615184A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2284608B1 (xx) | 1978-04-07 |
| GB1516863A (en) | 1978-07-05 |
| DE2540374C2 (de) | 1984-03-01 |
| IL47856A0 (en) | 1975-11-25 |
| NL180318B (nl) | 1986-09-01 |
| NL180318C (nl) | 1987-02-02 |
| DE2540374A1 (de) | 1976-03-25 |
| US3954745A (en) | 1976-05-04 |
| IL47856A (en) | 1978-04-30 |
| IE41280B1 (en) | 1979-11-21 |
| FR2284608A1 (fr) | 1976-04-09 |
| JPH0114239B2 (xx) | 1989-03-10 |
| IE41280L (en) | 1976-03-12 |
| CA1052769A (en) | 1979-04-17 |
| JPS5148688A (en) | 1976-04-26 |
| NL7510738A (nl) | 1976-03-16 |
| BE833245A (fr) | 1976-03-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH650503A5 (de) | Verfahren zur herstellung von (aminothiazolyl)-essigsaeureestern. | |
| DE69937143T2 (de) | Verfahren zur reinigung eines cephalosporin-derivats | |
| DE2514020A1 (de) | Acylureidocephalosporine | |
| CH615184A5 (xx) | ||
| DE2501219A1 (de) | Verfahren zur herstellung von 7-aminocephalosporansaeuren | |
| DE2462383A1 (de) | Verfahren zur herstellung von antibiotischen mitteln | |
| DE2225149C2 (de) | Oxofurylesterderivate der 6-(ą-Aminophenylacetamido)penicillansäure, Verfahren zu deren Herstellung und ihre Verwendung | |
| DE69233042T2 (de) | Herstellung eines Cephalosporin-Antibiotikums unter Verwendung des Syn-Isomers einer Thiazolylzwischenverbindung | |
| CH640539A5 (de) | Verfahren zur herstellung von neuen cephemcarbonsaeurederivaten. | |
| DE1670301C3 (de) | 7- (Pyndylmercaptoacetamido) cephalosporansäuren, deren Salze und Verfahren zu ihrer Herstellung | |
| CH634312A5 (de) | Verfahren zur herstellung von 3,4-dihydro-2-methyl-4-oxo-2h-1,2-benzothiazin-3-carbonsaeure-1,1-dioxid. | |
| DE2356122A1 (de) | Verbessertes verfahren zur isolierung von cephalosporin c | |
| DE2804040C3 (de) | Verfahren zur Herstellung von Cephemverbindungen | |
| AT328085B (de) | Verfahren zur herstellung neuer penicilline | |
| DE2534926A1 (de) | Sauerstoffanaloge von cephalosporinen | |
| DE2429166A1 (de) | Verfahren zur selektiven spaltung der amidsaeurefunktion eines 7-(amidsaeure)cephalosporins | |
| DE2215039A1 (de) | Neue Acyloxyalkylesterderivate von Penicillin und Cephalosporin | |
| DE2412598C2 (de) | Verfahren zur Herstellung von 7-Alkoxycephalosporinen bzw. 6-Alkoxypenicillinen | |
| DE2302745C2 (de) | Penicillin G-1(5)-oxid-acetonsolvat und Verfahren zu seiner Herstellung | |
| CH625805A5 (xx) | ||
| DE2252323C3 (de) | 3,6-Dialkyl-23-dihydro-2,9-dioxo-6H,9H-thiazolo [5,4-fj chinolin-e-carbonyl- Derivate, Verfahren zu ihrer Herstellung und ihre Verwendung als Bakterizide | |
| DE2841706C2 (de) | N,N-Dimethylacetamid-Addukt der 7-[D(-)-α-(4-Äthyl-2,3-dioxo-1-piperazincarboxamido)-α-(4-hydroxyphenyl)-acetamido]-3-[5-(1-methyl-1,2,3,4-tetrazolyl)-thiomethyl]-Δ↑3↑-cephem--4-carbonsäure, Verfahren zu seiner Herstellung und seine Verwendung | |
| AT369745B (de) | Verfahren zur herstellung von cephemverbindungen | |
| DD148953A5 (de) | Verfahren zur herstellung von 4'-nitrobenzyl-7-phenoxyacetamido-3-hydroxy-3-cephem-4-carboxylat-solvaten | |
| DD253819A5 (de) | Verfahren zur herstellung eines neuen zwischenprodukts fuer cephalosporine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |