(1,1'-Bi-14H-pyrano(3',4':6,7)indolizino(1,2-b)quinoline)-14,14'-dione, 4,4'-diethenyl-1,1',3,3',4,4',12,12'-octahydro-11,11'-dimethoxy-3,3'-bis((2,3,4,6-tetra-O-acetyl-beta-L-glucopyranosyl)oxy)- 4,4'-Diethenyl-1,1',3,3',4,4',12,12'-octahydro-11,11'-dimethoxy-3,3'-bis((2,3,4,6-tetra-O-acetyl-beta-L-glucopyranosyl)oxy)-(1,1'-Bi-14H-pyrano(3',4':6,7)indolizino(1,2-b)quinoline)-14,14'-dione 74453-49-9