4-(2,3-di-O-benzoyl-β-D-threofuranosyl)-5-ethoxycarbonyl-1,2,3,4-tetrahydro-6-methyl-2-oxopyrimidine 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 0.5h,
以0.07 g的产率得到2',6-anhydro-(5-ethoxycarbonylperhydro-6-hydroxy-6-methyl-2-oxo-4-β-D-threofuranosylpyrimidine)