Toluene-4-sulfonic acid (R)-diethylcarbamoyl-((3aR,4R,5aR,9aR,9bS)-2,2,8,8-tetramethyl-hexahydro-[1,3]dioxolo[4',5':4,5]pyrano[3,2-d][1,3]dioxin-4-yl)-methyl ester                                                                                                                                                              在
                                                                                                                                                                                 sodium azide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以75%的产率得到(S)-2-Azido-N,N-diethyl-2-((3aR,4S,5aR,9aR,9bR)-2,2,8,8-tetramethyl-hexahydro-[1,3]dioxolo[4',5':4,5]pyrano[3,2-d][1,3]dioxin-4-yl)-acetamide