(R)-3-[1-methyl-1-(6-trifluoromethyl-pyridin-3-yl)-ethylamino]-5-(3-trifluoromethoxy-phenyl)-1-(4-trifluoromethyl-phenyl)-1,5-dihydro-pyrrol-2-one                                                                                                                                                              在
                                                                                                                                                                                 sodium cyanoborohydride   、                                                                                                  
溶剂黄146                                                                                                                                  作用下,
                                                                                                                                                                                        反应 1.75h,
                                                                                                                以53%的产率得到(3R,5R)-3-[1-methyl-1-(6-trifluoromethyl-pyridin-3-yl)-ethylamino]-1-(4-trifluoromethyl-phenyl)-5-(3-trifluoromethoxy-phenyl)-pyrrolidin-2-one