ethyl 2,4-dioxo-4-[4-(trifluoromethyl)phenyl]butanoate

4-hydroxy-2-oxo-4-(4-trifluoromethyl-phenyl)-but-3-enoic acid methyl ester

对三氟甲基苯乙酮

草酸二乙酯

ethyl 2-hydroxy-4-oxo-4-(4-trifluoromethyl-phenyl)-but-2-enoate