methyl 3-(1-(2-methyl-1,3-dioxolan-2-yl)ethyl)oxirane-2-carboxylate

2-甲基乙酰乙酸乙酯

carbethoxy-1 ethylene dioxy-2 methyl-1 propane

4-hydroxy-3-methylbutan-2-one ethylene acetal

methyl-2 (oxo propyl-2)-2 dioxolanne-1,3