3-substituted carbacepem compounds having antibacterial effect
US4640919A · kind A · utility
3Cited by
4References
3Claims
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Key dates
| Filing date | Feb 19, 1985 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Feb 19, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D463/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Carbacephem compounds represented by the formula: ##STR1## [wherein R.sub.1 is a lower alkylsulfonyloxy, unsubstituted or substituted arylsulfonyloxy, azido, cyano, carbamoyloxy, unsubstituted or substituted heterocyclic thio ("heterocyclic" means a 5- or 6-membered heterocyclic group having 1 to 4 O, S or N atoms), unsubstituted or substituted lower alkylthio, or unsubstituted or substituted arylthio group; R.sub.2 and R.sub.3 are groups frequently used in the cephalosporin chemistry] have strong antibacterial activity against Gram-positive and Gram-negative bacteria, and are useful for curing various infections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.