NOVEL HETEROCYCLIC COMPOUND

摘要

A compound useful as a medicine, represented by the following general formula, a pharmaceutically acceptable salt thereof, and a medicinal composition containing the same and having an acetylcholinesterase inhibitor activity: M-W-Y-A-Q wherein M represents a group represented by general formula (a) (wherein R<1> and R<2> represent each hydrogen, etc., and Z represents S or O), etc.; W represents a bond, lower alkylene, etc.; Y represents lower alkylene, -NH-, -C(=O)-, etc.; A represents a bond or lower alkylene; and Q represents a group represented by general formula (b) (wherein R<4> represents lower alkyl, etc.), etc.