Thienoquinolizines and their use as .alpha..sub.2 -adrenoceptor antagonists
US4640924A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1985 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Aug 12, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D495/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention concerns thienoquinolizines of general formula (I) ##STR1## and their pharmaceutically acceptable acid addition salts. In the formula R.sup.1 is hydrogen or lower alkyl and R.sup.2 is lower alkyl, halo(lower)alkyl, --A--NR.sup.3 R.sup.4 [where A represents a direct bond between the S and N atoms or a lower alkylene group having 1 to 3 carbon atoms in the chain between the S and N atoms and R.sup.3 and R.sup.4 each independently represent hydrogen, lower alkyl, aryl or aryl(lower)alkyl or together with the nitrogen atom to which they are attached represent a five or six membered heterocyclic ring], aryl or a heterocyclic radical or R.sup.1 is --A.sup.1 NR.sup.5.SO.sub.2 R.sup.6 [where A.sup.1 is a lower alkylene group having 1 to 3 carbon atoms in the chain between the two N atoms, R.sup.5 is hydrogen or lower alkyl and R.sup.6 is lower alkyl, halo(lower)alkyl or aryl] and R.sup.2 is lower alkyl, halo(lower)alkyl or aryl. The compounds possess .alpha..sub.2 -adrenoceptor antagonistic activity in warm blooded animals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.