4-substituted azetidinones as precursors to 2-substituted-3-carboxy carbapenem antibiotics and a method of producing them
US5656753A · kind A · utility
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1Claims
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Key dates
| Filing date | Aug 24, 1994 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Aug 24, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/568
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.4, R.sup.5, R.sup.12, R.sup.16 and R.sup.17 are defined in the specification are provided. These compounds are useful as intermediates for the preparation of carbapenem antibacterials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.