(E)-2-Acetoxy-3-{(4R,5R)-5-[(R)-(tert-butyl-dimethyl-silanyloxy)-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-methyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-acrylic acid ethyl ester                                                                                                                                                              在
                                                                                                                                                                                 
肼                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        以88%的产率得到ethyl 2,3-dideoxy-2-hydrazone-4,5:7,8-di-O-isopropylidene-6-(tert-butyl-dimethylsilyl)-D-manno-octulosonate