78388-54-2
tert-butyl (2S)-2-((5R,5aR,12aS,13S)-1,3,8,10,17,19-hexaoxo-2,9-diphenyl-2,3,9,10-tetrahydro-1H,5H,6H,8H,12H,13H-5,13:6,12-dietheno-5a,12a-(methanoiminomethano)[1,2,4]triazolo[1',2':1,2]pyridazino[4,5-d][1,2,4]triazolo[1,2-a]pyridazin-18-yl)propanoate