JPS57169499A - Azetidinone derivative and its preparation - Google Patents
Azetidinone derivative and its preparationInfo
- Publication number
- JPS57169499A JPS57169499A JP56054865A JP5486581A JPS57169499A JP S57169499 A JPS57169499 A JP S57169499A JP 56054865 A JP56054865 A JP 56054865A JP 5486581 A JP5486581 A JP 5486581A JP S57169499 A JPS57169499 A JP S57169499A
- Authority
- JP
- Japan
- Prior art keywords
- preparation
- lower alkyl
- azetidinone derivative
- arylmethyl
- phenyl
- 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.)
- Granted
Links
Abstract
NEW MATERIAL:A compound of formulaI[R1 is arylmethyl, aryloxymethyl; R2 is lower alkyl, arylmethyl, which may be substituted with halogen; R3, R4 are lower alkyl, phenyl].
USE: Synthetic intermediate of cephalosporins, antibiotics.
PREPARATION: An azetidinone derivative of formula II and a phosphite ester of formula III (R5 is lower alkyl, phenyl) such as trimethyl phosphite are allowed to react, preferably at a molar ratio of 1/(1.5W3) in an inert solvent such as benzene at -20W100°C.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56054865A JPS57169499A (en) | 1981-04-10 | 1981-04-10 | Azetidinone derivative and its preparation |
GB8209646A GB2099817B (en) | 1981-04-10 | 1982-04-01 | Azetidinone derivatives and process for the preparation of the same |
DE19823213264 DE3213264A1 (en) | 1981-04-10 | 1982-04-08 | NEW AZETIDINONE COMPOUNDS AND METHOD FOR THE PRODUCTION THEREOF |
FR8206164A FR2509300B1 (en) | 1981-04-10 | 1982-04-08 | AZETIDINONE DERIVATIVES AND PROCESS FOR THEIR PREPARATION |
US06/865,651 US4689411A (en) | 1981-04-10 | 1986-05-15 | 4-thio azetidinone intermediates and process for the preparation of the same |
US07/071,664 US4784734A (en) | 1981-04-10 | 1987-07-09 | Azetidinone derivatives and process for the preparation of the same |
US07/166,918 US4853468A (en) | 1981-04-10 | 1988-03-11 | Process for the preparation of cephem derivatives |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56054865A JPS57169499A (en) | 1981-04-10 | 1981-04-10 | Azetidinone derivative and its preparation |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57169499A true JPS57169499A (en) | 1982-10-19 |
JPS6152159B2 JPS6152159B2 (en) | 1986-11-12 |
Family
ID=12982477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56054865A Granted JPS57169499A (en) | 1981-04-10 | 1981-04-10 | Azetidinone derivative and its preparation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57169499A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4689411A (en) * | 1981-04-10 | 1987-08-25 | Otsuka Kagaku Yakuhin Kabushiki Kaisha | 4-thio azetidinone intermediates and process for the preparation of the same |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6240458U (en) * | 1985-08-29 | 1987-03-11 | ||
JPH0532961U (en) * | 1991-10-08 | 1993-04-30 | 松下電器産業株式会社 | Electric kotatsu with fan function |
-
1981
- 1981-04-10 JP JP56054865A patent/JPS57169499A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4689411A (en) * | 1981-04-10 | 1987-08-25 | Otsuka Kagaku Yakuhin Kabushiki Kaisha | 4-thio azetidinone intermediates and process for the preparation of the same |
Also Published As
Publication number | Publication date |
---|---|
JPS6152159B2 (en) | 1986-11-12 |
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