((E)-1-Methyl-3-oxo-but-1-enyloxy)-acetic acid ethyl ester

(E)-3-Acetyl-4-ethoxycarbonylmethoxy-pent-3-enoic acid ethyl ester

苯氧乙酸乙酯

对氯肉桂酸乙酯

(3-甲氧基苯甲酰)乙酸乙酯