Process for preparing derivatives aminoisoquinolinosasi and their acid addition salts, pharmaceutically acceptable and their quaternary ammonium derivatives

摘要

Novel aminoisoquinoline derivatives of the general formula (I) IMAGE (I) wherein R1 represents a hydrogen atom or a C1-4 alkyl group, R2 represents a hydrogen atom, R3 represents a hydrogen atom, R4 represents a morpholinyl group or a piperazinyl group substituted with a pyridyl group, and pharmaceutically acceptable acid addition salts and quaternary derivatives thereof have been prepared. The novel compounds exert narcosis potentiating effects.