iomazenil 5,6-Dihydro-7-iodo-5-methyl-6-oxo-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carboxylic acid ethyl ester 7-Iodo-5,6-dihydro-5-methyl-6-oxo-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carboxylic acid ethyl ester Ro-16-0154 4H-Imidazo(1,5-A)(1,4)benzodiazepine-3-carboxylic acid, 5,6-dihydro-7-(iodo-123I)-5-methyl-6-oxo-, ethyl ester Ethyl 5,6-dihydro-7-iodo-(sup 123)I-5-methyl-6-oxo-4H-imidazo(1,5-A)(1,4)benzodiazepine-3-carboxylate IMZ-SnBu3