1 JZF Ethyl (4-{(2r)-2-[(1s,3s,5s)-3,5-dimethyl-2-oxocyclohexyl]-2-hydroxyethyl}-2,6-dioxopiperidin-1-yl)acetate 1.000 2 3HE 4-{(2r)-2-[(1s,3s,5s)-3,5-dimethyl-2-oxocyclohexyl]-2-hydroxyethyl}piperidine-2,6-dione 0.769 3 WV3 4-{(2r)-2-[(1r,3s,5s)-3,5-dimethyl-2-oxocyclohexyl]-2-hydroxyethyl}piperidine-2,6-dione 0.769