ES428386A1 - A procedure for preparing 7-alpha-aminoacetamide acid cefalosporin-4-carboxylic. (Machine-translation by Google Translate, not legally binding) - Google Patents
A procedure for preparing 7-alpha-aminoacetamide acid cefalosporin-4-carboxylic. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES428386A1 ES428386A1 ES428386A ES428386A ES428386A1 ES 428386 A1 ES428386 A1 ES 428386A1 ES 428386 A ES428386 A ES 428386A ES 428386 A ES428386 A ES 428386A ES 428386 A1 ES428386 A1 ES 428386A1
- Authority
- ES
- Spain
- Prior art keywords
- cephalosporin
- translation
- preparing
- machine
- legally binding
- 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.)
- Expired
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
- C07D501/02—Preparation
- C07D501/04—Preparation from compounds already containing the ring or condensed ring systems, e.g. by dehydrogenation of the ring, by introduction, elimination or modification of substituents
- C07D501/06—Acylation of 7-aminocephalosporanic acid
-
- 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)
Abstract
A process for preparing 7-α-amino-acetamido cephalosporin-4-carboxylic acid comprising: (a) the reaction of a 7-amino-cephalosporin-4-carboxylic acid ester with an active form of α-aminoacetic acid, the amino group of which is protected by reaction with a β-dicarbonyl compound to form an enamine; (b) removal of the amino protecting group from the resulting 7-α-aminoacetamido cephalosporin compound; (c) adding to the reaction mixture a quantity of hydrazine or a derivative thereof sufficient to prevent the β-dicarbonyl compound from reacting with the 7-α-aminoacetamido cephalosporin compound obtained in step (b); and (d) if necessary, deesterification of the resulting cephalosporin ester to obtain the desired 7-α-aminoacetamido cephalosporin-4-carboxylic acid. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3433773A GB1473090A (en) | 1973-07-19 | 1973-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES428386A1 true ES428386A1 (en) | 1976-07-16 |
Family
ID=10364389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES428386A Expired ES428386A1 (en) | 1973-07-19 | 1974-07-17 | A procedure for preparing 7-alpha-aminoacetamide acid cefalosporin-4-carboxylic. (Machine-translation by Google Translate, not legally binding) |
Country Status (25)
| Country | Link |
|---|---|
| JP (1) | JPS6113478B2 (en) |
| AR (1) | AR211686A1 (en) |
| AT (1) | AT338972B (en) |
| BE (1) | BE817790A (en) |
| BG (1) | BG25799A3 (en) |
| CA (1) | CA1024508A (en) |
| CH (1) | CH582189A5 (en) |
| CS (1) | CS188188B2 (en) |
| DD (1) | DD112134A5 (en) |
| DE (1) | DE2434017C3 (en) |
| DK (1) | DK142144B (en) |
| ES (1) | ES428386A1 (en) |
| FR (1) | FR2237635B1 (en) |
| GB (1) | GB1473090A (en) |
| HU (1) | HU168065B (en) |
| IE (1) | IE39506B1 (en) |
| IL (1) | IL45101A (en) |
| NL (1) | NL187811C (en) |
| PH (1) | PH11147A (en) |
| PL (1) | PL91364B1 (en) |
| RO (1) | RO64483A (en) |
| SE (1) | SE415765B (en) |
| SU (1) | SU622409A3 (en) |
| YU (1) | YU182574A (en) |
| ZA (1) | ZA743890B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1126544B (en) * | 1979-12-07 | 1986-05-21 | Dobfar Spa | PROCEDURE FOR THE PREPARATION OF 7-AMINO-DESACETOXY CEPHALOSPORANIC ACID DERIVATIVES |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1602620A (en) * | 1965-03-08 | 1971-01-04 | Antibacterial cephalosporin cpds |
-
1973
- 1973-07-19 GB GB3433773A patent/GB1473090A/en not_active Expired
-
1974
- 1974-06-17 IE IE1263/74A patent/IE39506B1/en unknown
- 1974-06-18 CA CA202,732A patent/CA1024508A/en not_active Expired
- 1974-06-18 ZA ZA00743890A patent/ZA743890B/en unknown
- 1974-06-21 IL IL45101A patent/IL45101A/en unknown
- 1974-06-28 YU YU01825/74A patent/YU182574A/en unknown
- 1974-07-05 PH PH16018A patent/PH11147A/en unknown
- 1974-07-10 JP JP49079044A patent/JPS6113478B2/ja not_active Expired
- 1974-07-10 CS CS744896A patent/CS188188B2/en unknown
- 1974-07-10 NL NLAANVRAGE7409299,A patent/NL187811C/en not_active IP Right Cessation
- 1974-07-10 CH CH948774A patent/CH582189A5/xx not_active IP Right Cessation
- 1974-07-16 DE DE2434017A patent/DE2434017C3/en not_active Expired
- 1974-07-17 DD DD179967A patent/DD112134A5/xx unknown
- 1974-07-17 DK DK383974AA patent/DK142144B/en not_active IP Right Cessation
- 1974-07-17 FR FR7424795A patent/FR2237635B1/fr not_active Expired
- 1974-07-17 ES ES428386A patent/ES428386A1/en not_active Expired
- 1974-07-18 PL PL1974172840A patent/PL91364B1/pl unknown
- 1974-07-18 SU SU742045556A patent/SU622409A3/en active
- 1974-07-18 BE BE146673A patent/BE817790A/en not_active IP Right Cessation
- 1974-07-18 HU HULI261A patent/HU168065B/hu unknown
- 1974-07-18 SE SE7409415A patent/SE415765B/en not_active IP Right Cessation
- 1974-07-18 AR AR254755A patent/AR211686A1/en active
- 1974-07-19 AT AT597874A patent/AT338972B/en active
- 1974-07-19 BG BG7400027304A patent/BG25799A3/en unknown
- 1974-07-19 RO RO7479536A patent/RO64483A/en unknown
Also Published As
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19960208 |