在
                                                                                                                                                                                 
甲醇   、                                                                                                  
1,8-二氮杂双环[5.4.0]十一碳-7-烯                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                以97%的产率得到[(2S,3R,4R,5S)-3-hydroxy-4,5-bis(phenylmethoxy)oxan-2-yl] (4aS,6aR,6aS,6bR,8aR,9R,10R,11S,12aR,14bS)-10-[(2R,3R,4S,5R,6R)-3-[(2S,3R,4S,5S,6R)-3-benzoyloxy-6-[[tert-butyl(diphenyl)silyl]oxymethyl]-4,5-bis(phenylmethoxy)oxan-2-yl]oxy-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]oxy-2,2,6a,6b,9,12a-hexamethyl-11-phenylmethoxy-9-(phenylmethoxymethyl)-1,3,4,5,6,6a,7,8,8a,10,11,12,13,14b-tetradecahydropicene-4a-carboxylate