3-氨甲基吡啶   、                                                                                      
6'-(6-cyano-1-ethyl-1H-indol-3-ylmethyl)-4-methoxy-biphenyl-2,3'-dicarboxylic acid 2-benzyl ester                                                                                                                                                              在
                                                                                                                                                                                 
N-甲基吗啉   、                                                                                                  (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         DMF (N,N-dimethyl-formamide)                                                                                  为溶剂,
                                                                                                                                                                                        以86%的产率得到2'-(6-cyano-1-ethyl-1H-indol-3-ylmethyl)-4-methoxy-5'-[(pyridin-3-ylmethyl)-carbamoyl]-biphenyl-2-carboxylic acid benzyl ester