| abstract |
(57) [Summary] [Structure] Formula [Chemical Formula 1] [In the formula, X 1 represents R 4 -N <, an oxygen atom or a sulfur atom, X 2 represents R 5 -N <or an oxygen atom, A ring represents a benzene ring, and Y may be substituted. A good amino group or a nitrogen-containing saturated heterocycle, R 1 represents a hydrogen atom or a hydrocarbon group, R 4 and R 5 represent a hydrogen atom, a hydrocarbon group or an acyl group, n is 1 to 10 and k is 0 to 0. 3, m is 1-8 Indicates. ] The condensed heterocyclic carboxylic acid derivative or its salt represented by these, its manufacturing method, an intermediate body, and an agent. [Effect] The target compound has an excellent cholinesterase inhibitory activity and is useful as a therapeutic / preventive drug for elderly dementia. |