(1S,9S)-tert-butyl 9-(benzyloxycarbonylamino)-6,10-dioxooctahydro-1H-pyridazino[1,2-a][1,2]diazepine-1-carboxylate
benzyl (4S,7S)-4-(5-(4-bromophenyl)-1H-imidazol-2-yl)-6,10-dioxooctahydro-1H-pyridazino[1,2-a][1,2]diazepin-7-ylcarbamate
benzyl (4S,7S)-4-(2-(4-bromophenyl)-2-oxoethylcarbamoyl)-6,10-dioxooctahydro-1H-pyridazino[1,2-a][1,2]diazepin-7-ylcarbamate
(1S,9S)-9-(benzyloxycarbonylamino)-6,10-dioxooctahydro-1H-pyridazino[1,2-a][1,2]diazepine-1-carboxylic acid
{(4S,7S)-4-[5-(4'-{2-[(S)-1-((S)-2-methoxycarbonylamino-3-methylbutyryl)pyrrolidin-2-yl]-3H-imidazol-4-yl}biphenyl-4-yl)-1H-imidazol-2-yl]-6,10-dioxooctahydropyridazino[1,2-a][1,2]diazepin-7-yl}carbamic acid methyl ester