甲基碘

甲醇

碳酸二甲酯

5-溴-1,2-二甲基-1H-咪唑

((2R,3S,4R,5R)-5-(2-amino-6-oxo-1H-purin-9(6H)-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl (2,3-dimethyl-1H-imidazol-3-ium-1-yl)phosphonate