ethyl 5-fluoro-1-(pyridin-4-ylmethyl)indole-2-carboxylate

1-(pyridin-4-ylmethyl)pyrrole-2,5-dione

4-(羟基甲基)吡啶甲酸乙酯

2-(pyridin-4-ylmethoxycarbonyl)benzoate

(1-methylpyridin-1-ium-4-yl)methanol,iodide