(1S,9S)-9-(((R)-1-ethoxy-1-oxo-4-phenylbutan-2-yl)amino)-10-oxooctahydro-1H-pyridazino[1,2-a][1,2]diazepine-1-carboxylic acid
(1S,9S)-9-(((R)-1-ethoxy-1-oxo-4-phenylbutan-2-yl)amino)-10-oxooctahydro-1H-pyridazino[1,2-a][1,2]diazepine-1-carboxylic acid