2,2-Dimethyl-propionic acid (2S,3R,4R,5S,6R)-2,5-bis-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-3-(2-fluoro-benzoylamino)-tetrahydro-pyran-4-yl ester                                                                                                                                                              在
                                                                                                                                                                                 
氢溴酸   、                                                                                                  
溶剂黄146                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以70%的产率得到2,2-Dimethyl-propionic acid (2R,3R,4R,5S,6R)-2-bromo-5-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-3-(2-fluoro-benzoylamino)-tetrahydro-pyran-4-yl ester