BE747382A - Nouvelles cephalosporines utiles comme intermediaires dans la preparation de la cephalexine, et procede ameliore pour la synthese de la cephalexine - Google Patents
Nouvelles cephalosporines utiles comme intermediaires dans la preparation de la cephalexine, et procede ameliore pour la synthese de la cephalexineInfo
- Publication number
- BE747382A BE747382A BE747382DA BE747382A BE 747382 A BE747382 A BE 747382A BE 747382D A BE747382D A BE 747382DA BE 747382 A BE747382 A BE 747382A
- Authority
- BE
- Belgium
- Prior art keywords
- cephalexin
- intermediaries
- synthesis
- preparation
- improved process
- Prior art date
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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D499/00—Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cephalosporin Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US80831369A | 1969-03-18 | 1969-03-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE747382A true BE747382A (fr) | 1970-09-14 |
Family
ID=25198435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE747382D BE747382A (fr) | 1969-03-18 | 1970-03-13 | Nouvelles cephalosporines utiles comme intermediaires dans la preparation de la cephalexine, et procede ameliore pour la synthese de la cephalexine |
Country Status (16)
Country | Link |
---|---|
US (1) | US3632850A (fr) |
JP (1) | JPS5017991B1 (fr) |
AT (1) | AT305492B (fr) |
BE (1) | BE747382A (fr) |
BR (1) | BR6915024D0 (fr) |
CA (1) | CA985674A (fr) |
CH (1) | CH554896A (fr) |
CY (1) | CY708A (fr) |
DK (1) | DK143342C (fr) |
ES (1) | ES377688A1 (fr) |
FR (1) | FR2039032A5 (fr) |
GB (1) | GB1270633A (fr) |
IE (1) | IE34181B1 (fr) |
IL (1) | IL34050A (fr) |
MY (1) | MY7300494A (fr) |
NL (1) | NL7003887A (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3852281A (en) * | 1970-02-18 | 1974-12-03 | Koninklijke Gist Spiritus | Process for the preparation of 7-substituted amino-desacetoxycephalosporanic acid compounds |
US3862181A (en) * | 1970-10-28 | 1975-01-21 | Squibb & Sons Inc | Process for preparing cephalosporins |
US4003894A (en) * | 1971-08-17 | 1977-01-18 | Gist-Brocades N.V. | Preparation of 7-substituted amino-desacetoxycephalosporanic acid compounds |
JPS536158B2 (fr) * | 1972-03-23 | 1978-03-04 | ||
JPS551272B2 (fr) * | 1972-04-14 | 1980-01-12 | ||
JPS4970989A (fr) * | 1972-11-15 | 1974-07-09 | ||
JPS50150989U (fr) * | 1974-05-31 | 1975-12-16 | ||
US4091214A (en) * | 1977-02-25 | 1978-05-23 | Eli Lilly And Company | De-esterification process for cephalosporins |
CA1164402A (fr) * | 1980-03-31 | 1984-03-27 | David A. Hall | Reduction electrolytique des esters cephalosporine- p-nitrobenzyliques |
US4379739A (en) * | 1980-03-31 | 1983-04-12 | Eli Lilly And Company | Electrolytic reduction of cephalosporin p-nitrobenzyl esters |
-
1969
- 1969-03-18 US US808313A patent/US3632850A/en not_active Expired - Lifetime
- 1969-12-11 BR BR215024/69A patent/BR6915024D0/pt unknown
-
1970
- 1970-03-02 IE IE276/70A patent/IE34181B1/xx unknown
- 1970-03-06 CA CA076,674A patent/CA985674A/en not_active Expired
- 1970-03-09 CH CH342670A patent/CH554896A/xx not_active IP Right Cessation
- 1970-03-10 IL IL34050A patent/IL34050A/en unknown
- 1970-03-13 BE BE747382D patent/BE747382A/fr not_active IP Right Cessation
- 1970-03-16 AT AT244070A patent/AT305492B/de not_active IP Right Cessation
- 1970-03-17 DK DK131870A patent/DK143342C/da not_active IP Right Cessation
- 1970-03-18 NL NL7003887A patent/NL7003887A/xx unknown
- 1970-03-18 ES ES377688A patent/ES377688A1/es not_active Expired
- 1970-03-18 GB GB03101/70A patent/GB1270633A/en not_active Expired
- 1970-03-18 FR FR7009698A patent/FR2039032A5/fr not_active Expired
- 1970-03-18 JP JP45023019A patent/JPS5017991B1/ja active Pending
-
1973
- 1973-10-01 CY CY70873A patent/CY708A/xx unknown
- 1973-12-30 MY MY494/73A patent/MY7300494A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2012955B2 (de) | 1976-05-13 |
JPS5017991B1 (fr) | 1975-06-25 |
FR2039032A5 (fr) | 1971-01-08 |
DE2012955A1 (de) | 1970-09-24 |
CH554896A (de) | 1974-10-15 |
DK143342C (da) | 1981-12-07 |
NL7003887A (fr) | 1970-09-22 |
CY708A (en) | 1973-10-01 |
ES377688A1 (es) | 1972-08-01 |
MY7300494A (en) | 1973-12-31 |
GB1270633A (en) | 1972-04-12 |
IE34181B1 (en) | 1975-03-05 |
CA985674A (en) | 1976-03-16 |
AT305492B (de) | 1973-02-26 |
US3632850A (en) | 1972-01-04 |
IL34050A (en) | 1973-02-28 |
IE34181L (en) | 1970-09-18 |
DK143342B (da) | 1981-08-10 |
BR6915024D0 (pt) | 1973-05-24 |
IL34050A0 (en) | 1970-05-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RO74958A (fr) | Procede pour la preparation des cephalosporines | |
BE821983A (fr) | Procede pour la preparation d'hydroxycholesterines | |
BE746901A (fr) | Procede pour la preparation d'acetate d'allyle | |
BE813990A (fr) | Procede pour la preparation de 3-methylmercaptopropionaldehyde | |
BE822990A (fr) | Procede pour la preparation d'hexamethyltetraline | |
BE812305A (fr) | Procede pour la preparation de cyclohexanedione-1 | |
BE747382A (fr) | Nouvelles cephalosporines utiles comme intermediaires dans la preparation de la cephalexine, et procede ameliore pour la synthese de la cephalexine | |
BE819606A (fr) | Procede pour la preparation de 5-fluorocytosine | |
BE781552A (fr) | Procede de preparation de cephalosporines | |
RO66018A (fr) | Procede pour la preparation des cephalosporines | |
BE819730A (fr) | Procede pour la preparation des fluorures | |
NL7412707A (nl) | Werkwijze voor de bereiding van siliciumzuur nten. | |
CH546258A (fr) | Procede de preparation de cephalosporines. | |
RO63097A (fr) | Procede pour la preparation des isocyanates | |
BE811314A (fr) | Procede de preparation de cephalosporines et de penicillines | |
BE783688A (fr) | Procede ameliore pour la preparation de l'isomerase de glucose | |
RO63576A (fr) | Procede pour la preparation des esters acetoxymethilyques des cephalosporines | |
BE813276A (fr) | Procede pour la preparation de trimethylphenol | |
RO69470A2 (fr) | Procede pour la preparation des-5-pyrazolones -1- substitues | |
BE750263A (fr) | Procede pour la preparation d'amino-cetones | |
RO63028A (fr) | Procede pour la preparation des 1-alkylydenaminouracyles | |
BE822714A (fr) | Procede de preparation de cephalosporines | |
RO64148A (fr) | Procede pour la preparation des penicillines | |
BE774307A (fr) | Procede pour la preparation d'alcenylnorbornenes | |
BE761685A (fr) | Procede pour la preparation d'isoxazolylethyl-tetrahydropyranols |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE20 | Patent expired |
Owner name: ELI LILLY AND CY Effective date: 19900313 |