| abstract |
A compound represented by the following formula (I) that selectively acts on a mitochondrial benzodiazepine receptor and is useful as a therapeutic or prophylactic agent for anxiety disorder, depression, epilepsy, dementia, and the like, and a pharmaceutically acceptable compound thereof Acid addition salts. [Wherein, A represents a group represented by the following formula (IA): (Wherein X represents an oxygen atom or a sulfur atom, R 4 represents a hydrogen atom, a C 1-6 alkyl group or the like, and R 5 represents a hydrogen atom or the like); or halogen, C 1-6 alkyl, Represents a heteroaryl group which may be substituted with C 1-6 alkoxy or the like, R 1 and R 2 are the same or different and each represents a hydrogen atom, a C 1-6 alkyl group or the like, and R 3 represents hydrogen An atom, a halogen atom, a C 1-6 alkoxy group or the like; R a and R b are the same or different and each represents a hydrogen atom or a C 1-6 alkyl group; and n represents an integer of 0 to 5. ] |