[(2R,3R,4R,5R)-4-benzoyloxy-5-[5-fluoro-2-oxo-4-(thiophen-2-ylmethoxycarbonylamino)pyrimidin-1-yl]-2-methyloxolan-3-yl] benzoate 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 1.0h,
以64.7%的产率得到[1-((2R,3R,4S,5R)-3,4-Dihydroxy-5-methyl-tetrahydro-furan-2-yl)-5-fluoro-2-oxo-1,2-dihydro-pyrimidin-4-yl]-carbamic acid thiophen-2-ylmethyl ester