IMIDAZOBENZDIAZEPINDERIVATE

摘要

The present invention is concerned with substituted imidazo[1,5-a][1,2,4]triazolo[1,5-d][1,4]benzodiazepine derivatives of the following formula wherein the definition of substituents is described in the claims. This class of compounds shows high affinity and selectivity for GABA A alpha5 receptor binding sites and might be useful as a cognitive enhancer or for the treatment of cognitive disorders like Alzheimer's disease.