methyl 7-(2beta-(6-(1-cyclo-pentyl-yl)-4R-hydroxy-4-methyl-1E,5E-hexadienyl)-3alpha-hydroxy-5-oxo-1R,1alpha-cyclopentyl)-4Z-heptenoate
methyl 7-(2beta-(6-(1-cyclo-pentyl-yl)-4r-hydroxy-4-methyl-1e,5e-hexadienyl)-3alpha-hydroxy-5-oxo-1r,1alpha-cyclopentyl)-4z-heptenoate