Vincaminic acid esters
US3987177A · kind A · utility
28Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1975 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Jun 20, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D461/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides vincaminic acid esters of formula ##SPC1## Wherein R.sub.1 is hydrogen or hydroxy, R.sub.2 is hydrogen or R.sub.1 and R.sub.2 form an additional bond between the two carbon atoms to which they are attached, and R.sub.3, R.sub.4 and R.sub.5 are hydrogen or methyl, and their salts. The esters are useful in treatment of cardiac-circulatory, cerebal-vascular or respiratory insufficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.