吡啶   、                                                                                      
2-(3-hydroxy-1-methyl-2-oxoindolin-3-yl)-3-oxocyclohex-1-en-1-yl methanesulfonate                                                                                                                                                                                                                                                                      反应 12.0h,
                                                                                                                生成                                                 1'-methyl-9,10-dihydro-4aH-spiro[benzo[d]pyrido[2,1-b][1,3]oxazine-6,3'-indoline]-2',7(8H)-dione   、                                                                                             1'-methyl-9,10-dihydro-4aH-spiro[benzo[d]pyrido[2,1-b][1,3]oxazine-6,3'-indoline]-2',7(8H)-dione