1-diazo-6-methyl-1-(2,4,6-trimethylphenylsulfonyl)-5-hepten-2-one                                                                                                                                                              在
                                                                                                                                                                                 (4S)-2,2'-(1-phenylmethyl-2-phenylethylidene)bis[4-(1-methylethyl)-4,5-dihydrooxazole]   、                                                                                                  
三氟甲烷磺酸亚铜(I)苯联合体 (2:1)                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                                                        以84%的产率得到(1S,5S)-6,6-dimethyl-2-oxo-1-(2,4,6-trimethylphenylsulfonyl)bicyclo[3.1.0]hexane