7-chloro-4-ethoxy-2-methyl-5-phenylpyrido[4,3-d]pyrimidine

5,7-二氯吡啶并[4,3-d]嘧啶-4(3h)-酮

7-chloro-5-morpholin-4-yl-1H-pyrido[4,3-d]pyrimidin-4-one

4-氨基-2,6-二氯烟酸

2,4,6-三氯-3-硝基吡啶