乙烯基乙醚   、                                                                                      
3-(Acetyl-methyl-amino)-2-diazo-3-oxo-propionic acid (S)-2-methyl-1-((R)-1-phenyl-ethylcarbamoyl)-propyl ester                                                                                                                                                              在
                                                                                                                                                                                 rhodium perfluorobutyramidate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 8.0h,
                                                                                                                以88%的产率得到(1R,1S)-1-[(1-phenylethyl)carbamoyl]-2-methyl-propyl (1R,4S,5R)-5-ethoxy-1,2-dimethyl-3-oxo-7-oxa-2-aza-bicyclo[2.2.1]heptane-4-carboxylate