IE820746L - Improved process for preparing penicillanic acid derivatives - Google Patents
Improved process for preparing penicillanic acid derivativesInfo
- Publication number
- IE820746L IE820746L IE820746A IE74682A IE820746L IE 820746 L IE820746 L IE 820746L IE 820746 A IE820746 A IE 820746A IE 74682 A IE74682 A IE 74682A IE 820746 L IE820746 L IE 820746L
- Authority
- IE
- Ireland
- Prior art keywords
- penicillanic acid
- acid derivatives
- improved process
- preparing
- mixture
- Prior art date
Links
Classifications
-
- 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
-
- 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
Landscapes
- 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
There is provided a process for preparing in high yields a 6-[D(-)- alpha-(4-C1-C4-alkyl-2,3-dioxo-1- piperazinocarbonylamino)- phenylacetamido]penicillanic acid, or pharmaceutically acceptable salt thereof, in which a 4-C1-C4-alkyl- 2,3-dioxo-1-piperazinocarbonyl halide is added under controlled pH conditions to a solution or suspension of ampicillin in a mixture of ethyl acetate and water in the presence of a base to form a reaction mixture, the resulting mixture is agitated until the reaction is completed, the reaction mixture is acidified, and the desired antibiotic is recovered as a crystalline product under controlled pH conditions and using controlled amounts of ethyl acetate as solvent.
[GB2095661A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24875481A | 1981-03-30 | 1981-03-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE820746L true IE820746L (en) | 1982-09-30 |
| IE52907B1 IE52907B1 (en) | 1988-04-13 |
Family
ID=22940531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE746/82A IE52907B1 (en) | 1981-03-30 | 1982-03-29 | Process for preparing 6-(d-(-)-alpha-(4-c1-c4-alkyl-2,3-dioxo-1-piperazinocarbonyl-amino)-phenylacetamido)-penicillanic |
Country Status (23)
| Country | Link |
|---|---|
| JP (1) | JPS57165391A (en) |
| AT (1) | AT381706B (en) |
| AU (1) | AU544896B2 (en) |
| BE (1) | BE892586A (en) |
| CA (1) | CA1200239A (en) |
| CH (1) | CH654309A5 (en) |
| DE (1) | DE3208506A1 (en) |
| DK (1) | DK161079C (en) |
| ES (1) | ES509424A0 (en) |
| FR (1) | FR2502623A1 (en) |
| GB (1) | GB2095661B (en) |
| GR (1) | GR76054B (en) |
| HK (1) | HK23590A (en) |
| IE (1) | IE52907B1 (en) |
| IL (1) | IL64981A (en) |
| IT (1) | IT1148130B (en) |
| LU (1) | LU84036A1 (en) |
| NL (2) | NL192453C (en) |
| NZ (1) | NZ199869A (en) |
| PH (1) | PH19765A (en) |
| PL (1) | PL235508A1 (en) |
| SE (1) | SE452767B (en) |
| ZA (1) | ZA82674B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BG46664A1 (en) * | 1985-08-16 | 1990-02-15 | Druzhestven N Izsledovatelski | Method for preparing of 6- /d (-)- alpha- (4- ethyl- 2, 3- dioxo- 1- piperazine carbonylamino)- phenylacetamido/- penicillanic acid |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4112090A (en) * | 1974-05-09 | 1978-09-05 | Toyama Chemical Co., Ltd. | Novel penicillins and cephalosporins and process for producing the same |
| US4087424A (en) * | 1974-05-09 | 1978-05-02 | Toyama Chemical Co., Ltd. | Novel penicillins and cephalosporins and process for producing the same |
| IL47168A (en) * | 1974-05-09 | 1979-07-25 | Toyama Chemical Co Ltd | Mono or dioxo piperazino(thio)carbonylamino derivatives ofpenicillins and cephalosporins and process for producing the same |
-
1982
- 1982-01-28 CA CA000395121A patent/CA1200239A/en not_active Expired
- 1982-01-29 AU AU79964/82A patent/AU544896B2/en not_active Expired
- 1982-01-29 GB GB8202662A patent/GB2095661B/en not_active Expired
- 1982-02-02 ZA ZA82674A patent/ZA82674B/en unknown
- 1982-02-03 GR GR67199A patent/GR76054B/el unknown
- 1982-02-04 DK DK048282A patent/DK161079C/en active
- 1982-02-08 ES ES509424A patent/ES509424A0/en active Granted
- 1982-02-11 IL IL64981A patent/IL64981A/en unknown
- 1982-02-17 PH PH26877A patent/PH19765A/en unknown
- 1982-02-22 JP JP57026170A patent/JPS57165391A/en active Granted
- 1982-03-01 NZ NZ199869A patent/NZ199869A/en unknown
- 1982-03-09 DE DE19823208506 patent/DE3208506A1/en active Granted
- 1982-03-09 AT AT0093082A patent/AT381706B/en not_active IP Right Cessation
- 1982-03-10 IT IT47962/82A patent/IT1148130B/en active
- 1982-03-17 FR FR8204497A patent/FR2502623A1/en active Granted
- 1982-03-18 PL PL23550882A patent/PL235508A1/xx unknown
- 1982-03-22 BE BE0/207631A patent/BE892586A/en not_active IP Right Cessation
- 1982-03-24 LU LU84036A patent/LU84036A1/en unknown
- 1982-03-26 CH CH1898/82A patent/CH654309A5/en not_active IP Right Cessation
- 1982-03-29 SE SE8201998A patent/SE452767B/en not_active IP Right Cessation
- 1982-03-29 IE IE746/82A patent/IE52907B1/en not_active IP Right Cessation
- 1982-03-29 NL NL8201301A patent/NL192453C/en not_active IP Right Cessation
- 1982-03-29 NL NL192453D patent/NL192453A/xx not_active IP Right Cessation
-
1990
- 1990-03-29 HK HK235/90A patent/HK23590A/en not_active IP Right Cessation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK9A | Patent expired |