4-((3aS,7aS)-2-oxooctahydro-1H-benzo[d]imidazol-1-yl)-2-(trifluoromethyl)benzonitrile   、                                                                                      
5-溴-2,3-二氢苯并呋喃                                                                                                                                                              在
                                                                                                                                                                                 silica gel   、                                                                                                  hexanes ethyl acetate                                                                                                                                  作用下,
                                                                                                                                                                                                                            以to give the title compound (0.021 g, 16.4%) as a yellow solid的产率得到4-((3aS,7aS)-3-(2,3-dihydrobenzofuran-5-yl)-2-oxooctahydro-1H-benzo[d]imidazol-1-yl)-2-(trifluoromethyl)benzonitrile