吡啶 、
2-(3-hydroxy-1,5-dimethyl-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