Substituted alkylaminopyridazinone derivatives, process for the preparation thereof and pharmaceutical composition containing the same

摘要

New substituted alkylaminopyridazinone derivatives of the general Formula (I), (wherein R1 is hydrogen or alkyl having 1-4 carbon atoms; X is hydrogen or halogen; R2 is hydrogen or alkyl having 1-4 carbon atoms; n is 1, 2 or 3; Q and W independently from each other stand for -N= or -CH=; and R4 and R5 independently from each other represent hydrogen, halogen, trifluoromethyl or alkoxy having 1-4 carbon atoms) and pharmaceutically acceptable acid addition salts thereof possess useful anxiolytic and cognition enhancing properties.