TACRINE DERIVATIVES AS INHIBITORS OF ACETYLCHOLINESTERASE

摘要

The invention provides compounds of formula: (I) which have a tacrine moiety connected to an heterocyclic moiety through a linker. Through careful selection of the substituents and the linker, the activity and selectivity towards acetylcholinesterase can be modulated. The compounds show potent ACh E inhibition activities together with modifications in the .beta.-amyloid aggregation properties by binding simultaneously to the catalytic and peripheral AChE sites. They are useful in the treatment of AChE mediated diseases, such as the Alzheimer~s disease.