185741-73-5

1H,5H,11H,16H-2,28:13,25-Dipropeno-2,9b:13,- 20b-bis(iminoethano)dibenzo[3,4:8,9][1,6]- dioxecino[3,2-b:8,7-b']diindole-5,16-dicarboxylic acid,3,4,11a,12,14,15,22,22a-octahydro-8,- 19-dimethoxy-11,22-dioxo-,dimethyl ester,(2R,4aR,9bR,11aR,13R,15aR,20bR,22