Process for preparing 4-substituted azetidinones
US5106475A · kind A · utility
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4Claims
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Key dates
| Filing date | Oct 16, 1990 |
| Grant date | Apr 21, 1992 |
| Priority date | — |
| Expiry date | Oct 16, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D205/095
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing 3-4-cis-.beta.,.beta.-(4)-substituted and 3-4-trans,.beta.,.alpha.-(4)-substituted azetidinones is provided. Also provided are novel 4,4-disubstituted azetidinones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.