2,3-dimethylpyrimidin-4(3H)-imine

1,2-dimethylpyrimidin-1-ium,iodide

原乙酸三乙酯

3-exo-amino-N-methylbicyclo[2.2.1]hept-5-ene-2-exo-carboxamide

重氮甲烷