(E)-ethyl 3-(2-(trifluoromethyl)imidazo[1,2-a]pyridin-7-yl)acrylate   、                                                                                      1-(2-fluorobenzyl)tetrahydro-1H-thiophenium triflate                                                                                                                                                              在
                                                                                                                                                                                 silica   、                                                                                                  
乙酸乙酯                                                                                                                                  作用下,
                                                                                                                                                                                                                            以gave the title compound as a pale yellow oil (540 mg, 49%, 2:1 trans:cis)的产率得到(1R*,2R*,3R*)-Ethyl-2-phenyl-3-(2-(trifluoromethyl)imidazo[1,2-a]pyridin-7-yl)cyclopropanecarboxylate