10-(4-Methoxyphenyl)-3,4,9,10-tetrahydropyrrolo(3,4-b)(1,5)benzodiazepin-1(2H)-one 137987-37-2 Pyrrolo(3,4-b)(1,5)benzodiazepin-1(2H)-one, 3,4,9,10-tetrahydro-10-(4-methoxyphenyl)-, hemihydrate