英文名称
(2R)-2-[(3R,4S,5R,9R,10R,12S,13S,14S,16S,17S)-3-acetyloxy-14-formyl-12,16-dihydroxy-4,10,13-trimethyl-4-[(2R,3S,4R,5R,6S)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxycarbonyl-2,3,5,6,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-17-yl]-6-methyl-4-oxohept-5-enoic acid