7-nitro-2-pyridin-2-yl-1-(2-pyridin-2-ylethyl)benzimidazole

7-nitro-2-pyridin-2-yl-1-(2-pyridin-4-ylethyl)benzimidazole

2-Methyl-2-pyridin-2-ylpropanenitrile

5,6-二羟基-2-吡啶-2-基-嘧啶-4-羧酸甲酯

2-[1,4-dimethyl-5-(pyridine-2-carbonyl)pyrrol-2-yl]acetic acid