4-oxo-2,3,4,5-tetrahydro-benzo[b][1,4]diazepine derivatives

摘要

The invention relates to 4-oxo-2,3,4,5-tetrahydro-benzo [b][1,4]diazepines of formula I wherein R¹, R², R³ and R⁴ are as defined in the description and claims, which are gamma-secretase inhibitors and which may be useful in the treatment of Alzheimer's disease.