Tetracyclic condensed heterocyclic compounds, their...

C - Chemistry – Metallurgy – 07 – D

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C07D 487/00 (2006.01) A61K 31/395 (2006.01) A61K 31/675 (2006.01) C07D 471/00 (2006.01) C07D 471/06 (2006.01) C07D 487/04 (2006.01) C07D 491/00 (2006.01) C07D 495/00 (2006.01) C07D 498/00 (2006.01) C07D 513/00 (2006.01) C07D 519/00 (2006.01) C07F 9/547 (2006.01)

Patent

CA 2136913

A novel compound of the formula Image wherein Ar represents a tetracyclic fused heterocyclic group which may be substituted; R1 represents H or a hydrocarbon group which may be substituted; Y represents an amino or nitrogen-containing saturated heterocyclic group which may be substituted, its salt, inhibiting excellent cholinesterase inhibitory activity and monoamine uptake inhibitory activity, thus being useful as therapeutic and/or prophylactic medicaments of senile dementia.

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