A novel 4-acylaminopyridine derivative represented by the following formula (I) is disclosed. ##STR1## The 4-acylaminopyridine derivative of the present invention is useful as a medicine for treating disturbances of memory such as senile dementia and Alzheimer's disease, since it has an action of directly activating malfunctioned cholinergic neuron.
Polymorph forms of N-(2,3-dimethyl-5,6,7,8-tetrahydrofuro[2,3-B]quinolin-4-YL)-2-(2-oxopyrrolidin-1-YL)acetamide
申请人:Yamabe Haruko
公开号:US06884805B2
公开(公告)日:2005-04-26
The invention relates to novel polymorph crystal forms A and B of N-(2,3-dimethyl-5,6,7,8-tetrahydrofuro[2,3-b]quinolin-4-yl)-2-(2-oxopyrrolidin-1-yl)acetamide:
The compounds and pharmaceutical compositions thereof are useful for activating a malfunctioned cholinergic neuron that is associated with memory loss disturbances.