1-丁基-3-甲基-1H-咪唑-3-鎓甲基碳酸酯

N-methyl-N'-n-butylimidazolium-2-carboxylate

methyl 4-(methoxymethyl)-2-oxocyclohexane-1-carboxylate

methyl 2-cyano-2-(2,6-dichlorophenyl)acetate

4-溴-2-(羧基甲基)苯甲酸