英文名称:Picfeltarraenin Ia; (2R)-2-[(3R,8S,9R,10R,13R,14S,16R)-3-[4,5-Dihydroxy-3-(3,4,5-Trihydroxy-6-Methyl-Tetrahydropyran-2-Yl)Oxy-Tetrahydropyran-2-Yl]Oxy-16-Hydroxy-4,4,9,13,14-Pentamethyl-11-Oxo-1,2,3,7,8,10,12,15,16,17-Decahydrocyclopenta[A]Phenanthren-17-Yl]-5-Isopropyl-2-Methyl-Furan-3-One; Picfeltarraenin Ia