[(2R,3R,6S)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-3-(4-methoxy-benzyloxy)-4-methyl-5-tributylstannanylmethyl-3,6-dihydro-2H-pyran-2-yl]-acetaldehyde                                                                                                                                                                                              以
                                                                                         xylene                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                生成                                                 
(1R,3S,5S,6S,8R)-3-(tert-Butyl-diphenyl-silanyloxymethyl)-8-(4-methoxy-benzyloxy)-5-methyl-4-methylene-2-oxa-bicyclo[3.2.1]octan-6-ol