Compounds and their use as positive AMPA receptor modulators

摘要

The invention provides novel compounds represented by the general formula compound represented by the formula: wherein the bond represented by the broken line may be a single, a double bond or absent; and if the bond is absent, then the nitrogen is substituted with a hydrogen and R²; X represents SO₂ or C-O or CH₂; Y represents -CH(R⁴)-, -N(R⁴)- or -N(R⁴)-CH₂-, O; and the meaning of R², R³, R⁴, R⁵, R⁶, R⁷, and R⁸ are as defined in the application The compounds are useful as positive modulators of the AMPA-receptor.