Beta-lactamase inhibiting 2-beta-substituted-2-alpha-methyl-(5R)penam-3-alpha-carboxylic acid 1,1-dioxides and intermediates therefor
US4356174A · kind A · utility
7Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1981 |
| Grant date | Oct 26, 1982 |
| Priority date | — |
| Expiry date | Sep 14, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Beta-lactamase inhibiting 2-beta-substituted-2-alpha-methyl-(5R)penam-3-alpha-carboxylic acid 1,1-dioxides and esters thereof, wherein the 2-beta-substituent is cyano, acetyl, alkoxycarbonyl, omegahydroxyalkoxycarbonyl, carbalkoxymethoxycarbonyl or dialkylaminocarbonyl; intermediates therefor wherein the 2-beta-substituent is carboxy, chlorocarbonyl or aminocarbonyl; methods for their preparation and use as beta-lactamase inhibitors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.