73200-68-7 9-Chloro-1,2,3,4-tetrahydropyrrolo(1,2,3-ef)(1,5)benzodiazepin-6(7H)-one Pyrrolo(1,2,3-ef)(1,5)benzodiazepin-6(7H)-one, 1,2,3,4-tetrahydro-9-chloro-