2,3-O-isopropylidenespiro[1,6-anhydro-4-deoxy-β-D-lyxo-hexopyranose-4,3'-pyrazole]-4',5'-di-(methyl carboxylate)                                                                                                                                                              在
                                                                                                                                                                                 
肼                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        以87%的产率得到2,3-O-isopropylidenespiro[1,6-anhydro-4-deoxy-β-D-lyxo-hexopyranose-4,3'-pyrazole]-4',5'-di-(carboxhydrazide)