Compounds of the formula
wherein R1 R2, R7, R8, X, Y, M and L are defined as below. The compounds of formula I are cholinesterase inhibitors and are useful in enhancing memory in patients suffering from dementia and Alzheimer's disease.
公式为I的化合物,其中R1 R2,R7,R8,X,Y,M和L的定义如下。公式I的化合物是
胆碱酯酶抑制剂,并且在增强患有痴呆和阿尔茨海默病的患者的记忆方面非常有用。