(2S,3R,5R,9R,10R,13R,14S,17S)-17-[(2R,3R,5R,6S)-5-ethyl-2,3,7-trihydroxy-6-methylheptan-2-yl]-2,3,14-trihydroxy-10,13-dimethyl-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one