tert-butyl (2-(1-methyl-1H-indol-3-yl)ethyl)carbamate   、                                                                                      
α-chloro-N-benzoylhydrazone                                                                                                                                                              在
                                                                                                                                                                                 tetrakis(acetonitrile)copper(I)tetrafluoroborate   、                                                                                                  (S,Sp)-
tBu-phosferrox   、                                                                                                  
sodium carbonate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以88%的产率得到tert-butyl (2-((4aS,9aS)-1-benzoyl-9-methyl-3-phenyl-4,4a,9,9a-tetrahydro-1H-pyridazino[3,4-b]indol-4a-yl)ethyl)carbamate