(5Z)-7-[(1R)-2β-[(3S)-5-Cyclohexyl-3-hydroxy-1-pentynyl]-3α,5α-dihydroxycyclopentan-1α-yl]-5-heptenoic acid

[1R-[1alpha(Z),2beta(S*),3alpha,5alpha]]-7-[2-(5-cyclohexyl-3-hydroxypent-1-ynyl)-3,5-dihydroxycyclopentyl]hept-5-enoic acid