(1R,3Z,5S)-3-[(2E)-2-[(3aS,7aS)-1-[(E,2S)-6-ethyl-6-hydroxyoct-4-en-2-yl]-7a-methyl-3a,5,6,7-tetrahydro-3H-inden-4-ylidene]ethylidene]-5-fluoro-4-methylidenecyclohexan-1-ol