N-[(Z)-2-(1-methyl-2-oxoindolin-3-ylidene)-1-phenylethylidene]-4-methylbenzenesulfonamide 、
3-fluorocinnamaldehyde 在
2-mesityl-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazol-2-ium tetrafluoroborate 、
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
四氢呋喃 、
乙腈 为溶剂,
反应 3.0h,
生成 2-(3-fluorophenyl)-1'-methyl-5-phenyl-6-tosyl-6-azaspiro[bicyclo[3.2.0]heptane-3,3'-indoline]-2',7-dione 、 2-(3-fluorophenyl)-1'-methyl-5-phenyl-6-tosyl-6-azaspiro[bicyclo[3.2.0]heptane-3,3'-indoline]-2',7-dione