4-(4-Chloro-phenyl)-3-(4-fluoro-phenyl)-piperidine-2,6-dione

对氟苯乙酸乙酯

ethyl 2,3-dibromo-3-(4-chlorophenyl)propanoate

3-氯苯乙酸乙酯

3-(3-chlorophenyl)-4-(4-chlorophenyl)piperidine-2,6-dione