(2R,3R,4R,SR)-4-(acetyloxy)-2-[3-(aminocarbonyl)-5-fluoro-2-oxo-1(2H)-pyrazinyl]-5-({[bis(allyloxy)-phosphoryl]oxy}methyl)tetrahydro-3-furanyl acetate   、                                                                                      
sodium methylate   、                                                                                      
溶剂黄146                                                                                                                                                              在
                                                                                                                                                                                 ice   、                                                                                                  
(2R,3R,4R,5R)-4-(acetyloxy)-2-[3-(aminocarbonyl)-5-fluoro-2-oxo-1(2H)-pyrazinyl]-5-([[bis(allyloxy)phosphoryl]oxy]methyl)-tetrahydro-3-furanyl acetate   、                                                                                                  silica gel   、                                                                                                  
氯仿   、                                                                                                  
甲醇                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 0.08h,
                                                                                                                以Thus, 0.35 g of {(2R,3S,4R,5R)-5-[3-(aminocarbonyl)-5-fluoro-2-oxo-1(2H)-pyrazinyl]-3,4-dihydroxytetrahydro-2-furanyl}methyl diallyl phosphate was obtained as a yellow-colored solid product的产率得到[(2R,3S,4R,5R)-5-[3-(aminocarbonyl)-5-fluoro-2-oxo-1(2H)-pyrazinyl]-3,4-dihydroxytetrahydro-2-furanyl] methyl diallyl phosphate