| abstract |
(57) [Summary] [Structure] Formula [Chemical Formula 1] [In the formula, R 1 represents a hydrogen atom, a hydrocarbon group or an acyl group, A ring represents a benzene ring, n represents 1 to 10, R 2 , R 3 and R 4 represent a hydrogen atom or a hydrocarbon group, R 3 And R 4 may form a heterocyclic group with the adjacent nitrogen atom, and k is 0 -3 and m show 1-8. However, when k = 0 and m = 2, a fused heterocyclic ketone derivative represented by n> 1] or a salt thereof, a process for producing the same, an intermediate and an agent. [Effect] The target compound has excellent cholinesterase inhibitory activity and monoamine reuptake inhibitory activity, and is useful as a therapeutic / preventive agent for senile dementia. |