1,3-Dithietane-2-carboxylic acid penicillin and cephalosporin derivatives
US4414153A · kind A · utility
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Key dates
| Filing date | Sep 23, 1981 |
| Grant date | Nov 8, 1983 |
| Priority date | — |
| Expiry date | Sep 23, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D339/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Substituted 1,3-dithietane-2-carboxylic acid derivatives useful as intermediates for the preparation of highly effective penicillin and cephalosporin derivatives and the preparation thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.