甲基(2R,4S)-4-羟基-2-哌啶羧酸酯

(2S,4R)-4-羟基-2-哌啶羧酸甲酯

3-(4-chlorophenyl)-2H-1,2,4-triazin-5-one

2-(2-chlorophenyl)-1H-1,2,4-triazol-3-one

6-(4-氯苯基)吡嗪-3(2H)-酮