Method for preparing acetylcholinesterase inhibitory compound having promnesia effect and 5HT4 serotonergic receptor agonist, and constituent drug composition thereof

摘要

Compounds are provided according to Formula (I) as well as their enantiomers and their racemics, their acid salts, their hydrates or their solvation products. Among a large number of possible meanings, X represents a halogen, Y an oxygen atom; all of the coefficients m, n, r and s have the value 1, R represents an ethyl and R a cycloalkyl. The invention also includes Methods of preparing the above compounds and the pharmaceutical compositions containing them also are provided.