(1R,3S)-5-((Z,2E)-4-((1S,3S)-3-(4-hydroxy-4-methylpentyl)-1,2,2-trimethylcyclopentyl)-2-butenylidene)-4-methylenecyclohexane-1,3-diol
(1r,3s)-5-((z,2e)-4-((1s,3s)-3-(4-hydroxy-4-methylpentyl)-1,2,2-trimethylcyclopentyl)-2-butenylidene)-4-methylenecyclohexane-1,3-diol