(2S,3S,4R,6R)-6-[[(10R,13R,14S,17S)-14-hydroxy-17-(1-hydroxyethyl)-10,13-dimethyl-1,2,3,4,7,8,9,11,12,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-yl]oxy]-2-methyl-tetrahydropyran-3,4-diol