2,3-二乙酰基丁二酸二乙酯

4-Pentynoic acid, 2-acetyl-, ethyl ester

ethyl 5-(iodomethyl)-2-methyl-1-phenyl-4,5-dihydro-1H-pyrrole-3-carboxylate

3-(苯基氨基)-2-丁烯酸乙酯