7-(Amino or protected amino)-3-thioheterobicyclic cephalosporins
US5247073A · kind A · utility
11Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1992 |
| Grant date | Sep 21, 1993 |
| Priority date | — |
| Expiry date | Jul 2, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D501/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides compounds of the formula ##STR1## wherein R.sup.0 is amino or protected amino; A and A' are taken together form a group of the formulae ##STR2## wherein X is hydrogen, halo, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.6 alkoxycarbonyl, amino, nitro, carboxy; and Y is nitrogen; or a pharmaceutically acceptable salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.