Ergot peptide alkaloid derivatives
US4124712A · kind A · utility
15Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1977 |
| Grant date | Nov 7, 1978 |
| Priority date | — |
| Expiry date | Aug 30, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D519/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of formula I, ##STR1## wherein R.sub.1 is alkyl of 1 to 4 carbon atoms, PA1 R.sub.2 is hydrogen, alkyl of 1 to 4 carbon atoms or benzyl, PA1 R.sub.3 and R.sub.5 are, independently, hydrogen or methyl, PA1 R.sub.4 is hydrogen or alkyl of 1 to 4 carbon atoms, and PA1 R.sub.6 and R.sub.7 together form a single bond, or PA1 R.sub.6 and R.sub.7 are each hydrogen, PA1 R.sub.6 is methoxy, and PA1 R.sub.7 is hydrogen, Are useful in the treatment of hypertension, angina pectoris, depressions, neuroses and psychoses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.