3-硝基-4-吡啶乙酸乙酯

ethyl 2-(3-aminopyridin-4-yl)acetate

4-二丁基氨基吡啶

4-(哌啶-4-基氧基)哌啶-1-羧酸叔丁酯

1-(2-ethylhexyl)-N,N-dihexylpyridin-1-ium-4-amine,chloride