The molecule is a 1,4-benzodiazepinone that is 3,4-dihydro-1,4-benzodiazepine-2,5-dione substituted at position 4 by a methyl group and at position 3 by a benzylidene group.
(3Z)-3-benzylidene-4-methyl-1H-1,4-benzodiazepine-2,5-dione