Synonyms: 2-Butenoicacid, 4-(1,2,4,5-tetrahydro-5-methyl-2-oxoimidazo[4,5,1-jk][1,4]benzodiazepin-6(7H)-yl)-,methyl ester, (E)- (9CI); 2-Butenoic acid,4-(1,2,4,5-tetrahydro-5-methyl-2-oxoimidazo[4,5,1-jk][1,4]benzodiazepin-6(7H)-yl)-,methyl ester, (E)-(?à)-; Imidazo[4,5,1-jk][1,4]benzodiazepine, 2-butenoic acid deriv.