Synonyms: Ro-31-2201;AC1L3S8B;88851-65-4;Ro 31-2201;(4S,7S)-7-[[(2S)-1-hydroxy-1-oxo-4-phenylbutan-2-yl]amino]-6,10-dioxo-2,3,4,7,8,9-hexahydro-1H-pyridazino[1,2-a]diazepine-4-carboxylic acid;6H-Pyridazino(1,2-a)(1,2)diazepine-1-carboxylic acid, 9-((1-carboxy-3-phenylpropyl)amino)octahydro-6,10-dioxo-, (1S-(1alpha,9alpha(R*)))-