[(4R,5S)-5-(2-{[Dimethyl-(1,1,2-trimethyl-propyl)-silanyl]-ethynyl}-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-yl]-methanol                                                                                                                                                              在
                                                                                                                                                                                 
四丁基氟化铵                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 0.25h,
                                                                                                                以96%的产率得到[(4R,5S)-5-(2-Ethynyl-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-yl]-methanol