121635-52-7 1H-1,5-Benzodiazepine-2-carboxylic acid, 2,3,4,5-tetrahydro-5-acetyl-4-methyl-, ethyl ester Ethyl 5-acetyl-4-methyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine-2-carboxylate