对硝基苯酚   、                                                                                      
Acetic acid (2S,3R,4R,5S,6S)-2,5-diacetoxy-4-((2S,3R,4S,5R,6R)-3,5-diacetoxy-6-acetoxymethyl-4-methoxy-tetrahydro-pyran-2-yloxy)-6-methyl-tetrahydro-pyran-3-yl ester                                                                                                                                                              在
                                                                                                                                                                                 
三氟化硼乙醚                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 48.0h,
                                                                                                                以41%的产率得到Acetic acid (2S,3R,4R,5S,6S)-5-acetoxy-4-((2S,3R,4S,5R,6R)-3,5-diacetoxy-6-acetoxymethyl-4-methoxy-tetrahydro-pyran-2-yloxy)-6-methyl-2-(4-nitro-phenoxy)-tetrahydro-pyran-3-yl ester