1H-吡唑-3-羧酸,5-甲基-4-硝基-,2-(2-氯苯基)酰肼

6-(2-chloroanilino)-3-methyl-2H-pyrazolo[4,3-d]pyrimidin-7-one

tert-butyl N-(2-chloroanilino)carbamate

4-氯-1-(2-氯苯基)-1H-吡唑并[3,4-d]嘧啶

3-溴-1-(2-氯苯基)-4,5-二氢-1H-吡唑-5-羧酸甲酯