High percentage .beta.-yield synthesis of carbapenem intermediates
US4895939A · kind A · utility
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Key dates
| Filing date | Jun 14, 1988 |
| Grant date | Jan 23, 1990 |
| Priority date | — |
| Expiry date | Jun 14, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D417/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed herein is a novel high .beta.-yield producing novel intermediates of the formula ##STR1## where R.sup.4 is ##STR2## useful in the synthesis of 1-.beta.-alkyl carbapenems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.