tert-butyl 2-cyanopyridine-4-carboxylate

4-(bromomethyl)-2-phenylmethoxypyridine

2-乙氧基异烟酸

2-氧代-1,2-二氢-4-吡啶甲酰肼

2-氯-N-异丙基吡啶-4-甲酰胺