3,7:6,10-dianhydro-8,11-O-dibenzyl-3-C-methyl-4-O-(tert-butyldimethylsilyl)-1,2,5,9-tetradeoxy-D-threo-L-allo-undecitol                                                                                                                                                              在
                                                                                                                                                                                 Swen oxidant                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
苯                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                生成                                                 methyl (E)-5,9:8,12-dianhydro-10,13-O-dibenzyl-5-C-methyl-6-O-(tert-butyldimethylsilyl)-2,3,4,7,11-pentadeoxy-D-threo-L-allo-tridec-2-enonate