4-氨基-6-乙氧基吡啶甲酸甲酯

2,4,6-三甲氧基吡啶

4-氨基-2,6-二氯烟酰胺

5,7-dichloro-4-ethoxy-2-methylpyrido[4,3-d]pyrimidine

4-(7-chloro-4-ethoxy-2-methylpyrido[4,3-d]pyrimidin-5-yl)morpholine