8-Bromo-5-ethyl-10-[2-(3-hydroxy-phenyl)-ethyl]-3-methyl-2,4-dioxo-2,3,4,10-tetrahydro-benzo[g]pteridin-5-ium; perchlorate                                                                                                                                                                                              以
                                                                                         
吡啶                                                                                  为溶剂,
                                                                                                                                                    反应 0.33h,
                                                                                                                生成                                                 
8-Bromo-5-ethyl-4a-hydroxy-10-[2-(3-hydroxy-phenyl)-ethyl]-3-methyl-5,10-dihydro-4aH-benzo[g]pteridine-2,4-dione