Heterocyclic compound and psychopharmaceutical composition containing same.

摘要

A condensed heterocyclic compound having the formula (I): <CHEM> wherein A and B are both carbonyl groups or one thereof represents a methylene group and the other represents a carbonyl group; Z represents an oxygen atom, a sulfur atom, a substituted or unsubstituted nitrogen atom, or a methylene group; n is an integer of 2 to 6; and R represents a group having the following formula: <CHEM> wherein R<1> represents a hydrogen atom or a hydroxyl group; R<2> represents a substituted or unsubstituted phenyl or 2-pyridyl group or salts thereof. The compounds exhibit a strong affinity to the sigma -receptor and are useful as psychopharmaceuticals.