Medicament for preventive and therapeutic treatment of physical dysfunction caused by nerve damage

摘要

A medicament for preventive and/or therapeutic treatment of a physical dysfunction such as motor dysfunction caused by nerve damage resulting from an accident, cerebral crisis and the like, which comprises as an active ingredient a compound or a salt thereof represented by the following general formula (I): wherein R1 to R5 represents hydrogen atom, an alkyl group, or an alkyl-substituted silyl group, X represents —CONH— or —NHCO—, and A represents a carboxylic acid-substituted aromatic group which may be substituted or a tropolonyl group which may be substituted.