2-乙基-1,3-丙二醇

diethyl 2-ethenyl-2-methylpropanedioate

2-[3-(3,4,5-trimethoxyphenyl)prop-2-enylidene]propanedioic acid

2-[3-(2-methylphenyl)propyl]propanedioic acid

2-[(2E,4E)-5-phenylpenta-2,4-dienylidene]propanedioic acid