ethyl 4-(2,5-dimethoxyphenyl)-4-oxobutyrate

ethyl 5-(2,6-dimethoxyphenyl)-5-oxovalerate

ethyl 4-(3,5-dimethoxyphenyl)-4-oxobutyrate

4-(3,5-二甲氧基苯基)-4-氧代丁酸乙酯

ethyl 5-(3,5-dimethoxyphenyl)-5-oxovalerate

Ethyl 8-(4-methoxy-3-nitrophenyl)-8-oxooctanoate

Ethyl 6-[4-(N,N-Dimethylamino)phenyl]-6-oxohexanoate

Ethyl 5-(2-Chloro-4-fluorophenyl)-5-oxovalerate

Ethyl 5-(4-Chloro-2-methoxyphenyl)-5-oxovalerate

Ethyl 7-(4-Chloro-2-methoxyphenyl)-7-oxoheptanoate

Ethyl 7-(5-Chloro-2-methoxyphenyl)-7-oxoheptanoate

Ethyl 5-(2-Chloro-6-fluorophenyl)-5-oxovalerate