3-氨基-1-苯基-2-吡唑啉-5-酮 、
5-Fluoro-3-[2-oxo-2-(3-trifluoromethyl-phenyl)-eth-(Z)-ylidene]-1,3-dihydro-indol-2-one 以
乙醇 为溶剂,
反应 8.0h,
以77%的产率得到5-fluoro-2'-phenyl-6'-[3-(trifluoromethyl)phenyl]spiro[1H-indole-3,4'-3a,5-dihydropyrazolo[3,4-b]pyridine]-2,3'-dione