2-oxo-1-azetidine sulfonic acid derivatives as potent .beta.-lactamase inhibitors
US5888998A · kind A · utility
33Cited by
3References
11Claims
0Family size
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Key dates
| Filing date | Apr 24, 1997 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Apr 24, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D417/14
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A compound of formula (I) ##STR1## wherein R.sub.1 is selected from the group consisting of 2-thienyl, 2-furyl, 2-pyrrolyl, 1-methyl-2-pyrrolyl, 2-amino-1-thiazolyl and 5-isothiazolyl; PA1 R.sub.2 is selected from the group consisting of: ##STR2## and M is hydrogen or a pharmaceutically acceptable cation; wherein the oxyimino fragment (.dbd.N--OR.sub.2) in formula (I) is in the `anti` orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.