Methyl 3-{[4-(benzyloxy)benzoyl]amino}-4-(cyclohexylamino)benzoate                                                                                                                                                              在
                                                                                                                                                                                 silica gel   、                                                                                                  Toluene acetone                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
溶剂黄146                                                                                  为溶剂,
                                                                                                                                                    反应 16.0h,
                                                                                                                以to give compound 48 as a white solid (0.234 g, 53%)的产率得到Methyl 2-[4-(benzyloxy)phenyl]-1-cyclohexyl-1H-benzimidazole-5-carboxylate