7-methyl-5-phenylchromeno[2,3-b]pyridin-5-ol

2-thiophen-3-ylpyridine-3-carbonitrile

(1-(3-氰基吡啶-2-基)哌啶-4-基)氨基甲酸叔丁酯

2-benzylsulfanylpyridine-3-carbonitrile

2-[(1-benzylpiperidin-4-yl)amino]pyridine-3-carbonitrile