121635-55-0 1H-1,5-Benzodiazepine-2-carboxylic acid, 2,3,4,5-tetrahydro-5-benzoyl-4-methyl-, ethyl ester 5-Benzoyl-4-methyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine-2-carboxylic acid ethyl ester