- rel-4-(((3aS,4S,5S,6R,7R,7aR)-6-(Bis(4-methoxyphenyl)(phenyl)methoxy)-1,3-dioxo-2-phenyloctahydro-1H-4,7-epoxyisoindol-5-yl)oxy)-4-oxobutanoic acid,98%, 25g