5 or 1'-Hydroxy-2-alkyl-7,8-cyclopentano[h]-1,2,3,4-tetrahydroisoquinolines and esters

Abstract

5 OR 1'-Hydroxy-2-alkyl-7,8-cyclopentano[h]-1,2,3,4-tetrahydroisoquinolines and esters of the formulas ##SPC1## Wherein R is a lower alkyl having 1 to 6 carbon atoms, R.sub.1 is hydrogen, a lower alkyl group, an alkanoyl, benzoyl or aralkanoyl group, R.sub.2 is a lower alkyl group and R.sub.3 is hydrogen, benzoyl, an alkanoyl group or an aralkanoyl group, and acid addition salts and quaternary ammonium salts thereof. The compounds are useful in pharmaceutical compositions for lowering blood pressure in animals. Wherein R is a lower alkyl having 1 to 6 carbon atoms, R.sub.1 is hydrogen, a lower alkyl group, an alkaoyl, benzoyl or aralkanoyl group, R.sub.2 is a lower alkyl group and R.sub.3 is hydrogen, benzoyl, an alkanoyl group or an aralkanoyl group, and acid addition salts and quaternary ammonium salts thereof. The compounds are useful in pharmaceutical compositions for lowering blood pressure in animals.

Dependencies are inferred from the claim text.