4-methoxy-6-methyl-5,6,7,8-tetrahydro-[1,3]dioxolo[4,5-g]isoquinoline-5-sulfonic acid ; sodium-salt                                                                                                                                                              在
                                                                                                                                         
镍                                                                                                                                                                                                                               potassium carbonate   、                                                                                                  
一水合肼                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 4.33h,
                                                                                                                生成                                                 7-amino-4,5,6-triethoxy-3-(5,6,7,8-tetrahydro-4-methoxy-6-methyl-1,3-dioxolo<4,5-g>-isoquinolin-5-yl)-1(3H)-isobenzofuranone