甲醇 、 [(2R,3R,4R)-3-benzoyloxy-4-fluoro-5-hydroxy-4-methyl-5-(4-methylsulfanylthieno[3,4-d]pyrimidin-7-yl)oxolan-2-yl]methyl benzoate 在
溶剂黄146 、
碳酸氢钠 作用下,
生成
[(2R,3R,4R,5R)-3-benzoyloxy-4-fluoro-5-methoxy-4-methyl-5-(4-oxo-3H-thieno[3,4-d]pyrimidin-7-yl)oxolan-2-yl]methyl benzoate