(1S,3S)-5-((E)-2-((1R,3aS,7aR)-1-((2R,5S,E)-6-hydroxy-5,6-dimethylhept-3-en-2-yl)-7a-methylhexahydro-1H-inden-4(2H)-ylidene)ethylidene)cyclohexane-1,3-diol