toluene-4-sulfonic acid 2-[5-amino-8-(1-oxy-pyridin-2-yl)-[1,2,4]triazolo[5,1-i]purin-3-yl]-ethyl ester   、                                                                                      
1-[4-(2-甲氧基乙氧基)苯基]哌嗪                                                                                                                                                                                              以
                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 3-[2-[4-[4-(2-Methoxyethoxy)phenyl]piperazin-1-yl]ethyl]-8-(1-oxidopyridin-1-ium-2-yl)-[1,2,4]triazolo[5,1-f]purin-5-amine