1-氯-3-甲基-2-丁烯

2,2-dimethyl-3-(toluene-4-sulfonyloxy)-butyric acid methyl ester

ethyl 2,2-dimethyl-3-(4-toluenesulfonyloxy)butanoate

2,2-二甲基乙酰乙酸甲酯

惕格酸