4-chloro-N-cyclohexyl-2,6,7-trimethyl-1H-imidazo[4,5-c]pyridin-1-amine   、                                                                                      
4-甲氧基苄胺                                                                                                                                                              在
                                                                                                                                                                                 crude product   、                                                                                                  silica gel   、                                                                                                  
甲醇   、                                                                                                  
乙酸乙酯                                                                                                                                  作用下,
                                                                                                                                                                                                                            以to provide about 2.7 g of N1-cyclohexyl-N4-(4-methoxybenzyl)-2,6,7-trimethyl-1H-imidazo[4,5-c]pyridine-1,4-diamine as a light amber oil的产率得到N1-cyclohexyl-N4-(4-methoxybenzyl)-2,6,7-trimethyl-1H-imidazo[4,5-c]-pyridine-1,4-diamine