SYNTHESIS OF NEW FUSED BENZOPYRANO-BENZODIAZEPINONES

Abstract

The synthesis of a new series of compounds, the [l]benzopyrano[4,3-c]l,5-benzodiazepin-2(3//)-ones 7a-d by condensation of 4-(2-hydroxyphenyl)-l,5-benzodiazepin-2-ones 4a-d with jV,W-dimethylformamide dimethylacetal (DMFDMA) 5 in good yields is reported.