Open chain rifamycin derivatives
US5100894A · kind A · utility
1Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1991 |
| Grant date | Mar 31, 1992 |
| Priority date | — |
| Expiry date | Apr 12, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D498/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the general formula: ##STR1## in which R is a lower alkyl group, and R.sub.1 is a tri-lower alkylmethylcarbonyl group, the structure elements --A.sub.1 --A.sub.2 --, A.sub.3 --A.sub.4 -- or A.sub.5 --A.sub.6 -- each represent ethylene or vinylene, or the elements --A.sub.1 --A.sub.2 -- and --A.sub.3 --A.sub.4 -- each represent ethylene and --A.sub.5 --A.sub.6 -- represents vinylene, their optical isomers and their salts exhibit valuable pharmaceutical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.