(((1R)-(1alpha(Z),2beta(1E,3R*),3alpha,5alpha))-7-(3,5-dihydroxy-2-(3-hydroxy-4-(3-trifluoromethyl)phenoxy)-1-butenyl)cyclopentyl)-5-heptenoic acid, 1-methylethyl ester
(((1r)-(1alpha(z),2beta(1e,3r*),3alpha,5alpha))-7-(3,5-dihydroxy-2-(3-hydroxy-4-(3-trifluoromethyl)phenoxy)-1-butenyl)cyclopentyl)-5-heptenoic acid, 1-methylethyl ester