英文名称
                        [6-[6-[[10-Formyl-9a,10b-dihydroxy-3a,5b-dimethyl-3-[1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyethyl]-1,2,3,4,5,5a,6,7,8,9,10,10a-dodecahydrocyclopenta[a]fluoren-8-yl]oxy]-4-methoxy-2-methyloxan-3-yl]oxy-5-hydroxy-4-methoxy-2-methyloxan-3-yl] 2-methylbut-2-enoate