烟酸乙酯

N2-[(1,1-二甲基乙氧基)羰基]-N6-(3-吡啶基羰基)-D-赖氨酸

3-(1-苯乙烯基)吡啶

3-苯乙烯基吡啶

(4-nitrophenyl) 1-oxidopyridin-1-ium-3-carboxylate