丙二酸单乙酯钾盐

1-(4-吗啉基)-2-(4-吡啶基)乙硫酮

4-乙酰吡啶

ethyl 2-(2',6'-dimethyl-4'-oxo-4H,4'H-[1,1'-bipyridin]-4-yl)acetate

2-(吡啶-4-基)乙腈