(3S,9S,10R,13R,14R,17R)-17-[(2R,5R,E)-5,6-Dimethylhept-3-en-2-yl]-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol