2,2-Dimethyl-propionic acid (2R,3R,4R,5R)-3-methanesulfonyloxy-5-methylsulfanyl-4-phenyl-tetrahydro-furan-2-ylmethyl ester                                                                                                                                                              在
                                                                                                                                                                                 sodium azide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                                                        以64%的产率得到methyl 2,3-dideoxy-2,3-didehydro-2-phenyl-5-O-pivaloyl-1-thio-α-D-glycero-pentofuranoside