1-(2,2-diphenylvinylidene)-2,2,3,3-tetramethylcyclopropane   、                                                                                      
N-(4,4-bis(4-fluorophenyl)-4-hydroxybut-2-yn-1-yl)-4-methyl-N-(prop-2-yn-1-yl)benzenesulfonamide                                                                                                                                                              在
                                                                                                                                                                                 tin(II) trifluoromethanesulfonate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
1,2-二氯乙烷                                                                                  为溶剂,
                                                                                                                                                    反应 6.0h,
                                                                                                                以95%的产率得到N-((3-(diphenylmethylene)-5-fluoro-8-(4-fluorophenyl)-1,1-dimethyl-2-(propan-2-ylidene)-2,3-dihydrocyclopenta[a]inden-3a(1H)-yl)methyl)-4-methyl-N-(prop-2-yn-1-yl)benzenesulfonamide