[(3r,6r)-3,4,5-triacetyloxy-6-[[(3s,5r,10s,12r,13s,14s,17r)-12,14-dihydroxy-10,13-dimethyl-17-(5-oxo-2h-furan-3-yl)-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-yl]oxy]oxan-2-yl]methyl Acetate