N-(2-吡啶甲基)甘氨酸乙酯

5-ethyl-5-pyridin-2-ylimidazolidine-2,4-dione

5-hexyl-5-pyridin-2-ylimidazolidine-2,4-dione

7-chloro-2-(2-pyridyl)benzimidazole

6-chloro-2-pyridin-2-yl-1H-benzimidazole