Oxazolinoazetidinylbutyric acid derivatives
US4183855A · kind A · utility
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Key dates
| Filing date | Feb 24, 1978 |
| Grant date | Jan 15, 1980 |
| Priority date | — |
| Expiry date | Feb 24, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D505/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Intermediates (I) for preparing a potent antibacterial, 1-oxadethiacephalosporin, are shown by the following formula ##STR1## (wherein R is a group of acyl-minus-carbonyl derived from a carboxylic or carbonic acid; PA1 COB is carboxy or protected carboxy; PA1 X is hydrogen or a nucleophilic group; PA1 Y is a nucleophilic group; and PA1 Z is a leaving group) and prepared from the corresponding exomethylene compound (II) by addition of a compound of formula: Y-Z (in which Y and Z are as defined above).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.