丙烯酸

异戊二烯

3-(4-methylcyclohex-3-ene-1-carbonyl)-1,3-oxazolidin-2-one

(1,4,4-trimethyl-2-oxopyrrolidin-3-yl) 4-methylcyclohex-3-ene-1-carboxylate

[1-(2-methoxyethyl)-4,4-dimethyl-2-oxopyrrolidin-3-yl] 4-methylcyclohex-3-ene-1-carboxylate