(1R,3S,4S,5R,5'S)-1-((tert-butyldiphenylsilyloxy)methyl)-2'-(4-methoxyphenyl)-5'-methyl-2-oxo-5'H-6-oxaspiro[bicyclo[3.1.0]hexane-3,4'-oxazole]-4-yl acetate                                                                                                                                                              在
                                                                                                                                                                                 
(二甲基氨基)三甲基锡                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以87%的产率得到(1R,3R,4S,5R,5'S)-1-((tert-butyldiphenylsilyloxy)methyl)-4-hydroxy-2'-(4-methoxyphenyl)-5'-methyl-5'H-6-oxaspiro[bicyclo[3.1.0]hexane-3,4'-oxazol]-2-one