methyl 4-p-tolyl-2-(2,4,6-triisopropylphenylsulfonylimino)but-3-enoate   、                                                                                      2-(13lambda4-Thiapentacyclo[13.8.0.02,11.03,8.018,23]tricosa-1(15),2(11),3,5,7,9,16,18,20,22-decaen-13-ylidene)-1-phenylethanone                                                                                                                                                                                              以
                                                                                         
二氯甲烷   、                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                                                        以92%的产率得到(4S,5R)-methyl 5-benzoyl-4-p-tolyl-1-(2,4,6-triisopropylphenylsulfonyl)-4,5-dihydro-1H-pyrrole-2-carboxylate