Phenylmethoxymethylselanylbenzene   、                                                                                      methyl (2S,4S,5R,6R)-5-acetamido-2-[(2R,3S,4S,5R,6R)-3-[(2S,3R,4R,5R,6R)-3-acetamido-5-acetyloxy-6-(acetyloxymethyl)-4-[(2R,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-5-benzoyloxy-2-(benzoyloxymethyl)-6-(2,2,2-trichloroethanimidoyl)oxyoxan-4-yl]oxy-4-acetyloxy-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate                                                                                                                                                              在
                                                                                                                                                                                 
三氟甲磺酸三甲基硅酯                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 1.5h,
                                                                                                                以92%的产率得到methyl (2S,4S,5R,6R)-5-acetamido-2-[(2R,3S,4S,5R,6S)-3-[(2S,3R,4R,5R,6R)-3-acetamido-5-acetyloxy-6-(acetyloxymethyl)-4-[(2R,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-5-benzoyloxy-2-(benzoyloxymethyl)-6-phenylselanyloxan-4-yl]oxy-4-acetyloxy-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate