3,4,5,6-四氢苯酐   、                                                                                      
methyl 2-(6-amino-7-fluoro-2-methyl-3-oxo-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)propanoate                                                                                                                                                              在
                                                                                                                                                                                 
溶剂黄146                                                                                                                                  作用下,
                                                                                                                                                                                        反应 3.5h,
                                                                                                                以69%的产率得到methyl 2-(6-(1,3-dioxo-4,5,6,7-tetrahydro-1H-isoindol-2(3H)-yl)-7-fluoro-2-methyl-3-oxo-2H-benzo[b][1,4]oxazin-4(3H)-yl) propanoate