1-(3-aminopropyl)-2-(2-ethoxymethyl)-6,7,8,9-tetrahydro-1H-imidazo[4,5-c]quinolin-4-amine   、                                                                                      
甲基磺酸酐                                                                                                                                                                                              以
                                                                                         
氯仿                                                                                  为溶剂,
                                                                                                                                                                                        以to provide 850 mg of N-{3-[4-amino-2-(2-ethoxymethyl)-6,7,8,9-tetrahydro-1H-imidazo[4,5-c]quinolin-1-yl]propyl}methanesulfonamide as a solid, m.p. 212.0-214.0° C的产率得到N-{3-[4-amino-2-(ethoxymethyl)-6,7,8,9-tetrahydro-1H-imidazo[4,5-c]quinolin-1-yl]-propyl}-methanesulfonamide