英文名称
1-O-[(3aS,5S,5aS,8aS,9S,9aS)-5,8a-dimethyl-1-methylidene-2,8-dioxo-3a,4,5,5a,9,9a-hexahydroazuleno[6,5-b]furan-9-yl] 5-O-[(3aR,5S,5aS,8aS,9R,9aS)-5,8a-dimethyl-1-methylidene-2,8-dioxo-3a,4,5,5a,9,9a-hexahydroazuleno[6,5-b]furan-9-yl] pentanedioate