苯甲酰氯   、                                                                                      (2S,5R)-5-Benzyloxymethyl-4-fluoro-2-methoxy-dihydro-furan-3,3-diol                                                                                                                                                              在
                                                                                                                                                                                 
吡啶   、                                                                                                  sodium tetrahydroborate                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 
methyl 5-O-benzyl-2-O-benzoyl-3-fluoro-3-deoxy-α-D-ribofuranoside   、                                                                                             Benzoic acid (2S,3R,4R,5R)-5-benzyloxymethyl-4-fluoro-2-methoxy-tetrahydro-furan-3-yl ester   、                                                                                             
Benzoic acid (2S,3R,4S,5R)-5-benzyloxymethyl-4-fluoro-2-methoxy-tetrahydro-furan-3-yl ester