1,2-diphenyl-5,7-bis(methoxycarbonyl)-11-(ethoxycarbonyl)-11-azapentacyclo<5.5.0.02,5.03,12.04,8>dodeca-9-en-6-one                                                                                                                                                                                              以
                                                                                         
苯                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以85%的产率得到(1S,2S,5R,6S)-4,11-Diphenyl-7-aza-tricyclo[4.3.2.0
2,5]undeca-3,8,10-triene-3,7,10-tricarboxylic acid 7-ethyl ester 3,10-dimethyl ester