N-Substituted-2-(R)-(sulfinic acid)-3-(S)-(acylamido)-4-oxo-azetidines and process
US4436596A · kind A · utility
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3References
31Claims
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Key dates
| Filing date | Nov 16, 1982 |
| Grant date | Mar 13, 1984 |
| Priority date | — |
| Expiry date | Nov 16, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D205/095
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
N-substituted-2-(R)-(sulfinic acid)-3-(S)-(acylamino)-4-oxo-azetidines, which are useful as intermediates in 1-oxa .beta.-lactam antibiotics, are synthesized by electrolytic reduction of 7-(S)-acylamino-3-hydroxymethyl-3-cephem-4-carboxylic acid compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.