8,10-bis[(4-nitrophenyl)methylidene]-7,11-diphenyl-2,4-diazaspiro[5.5]undecane-1,3,5,9-tetrone 、
碳酸胍 在
sodium hydroxide 作用下,
以
乙醇 为溶剂,
反应 16.0h,
以67%的产率得到(5'R,7'R)-2'-amino-8'-(4-nitrobenzylidene)-4'-(4-nitrophenyl)-5',7'-diphenyl-7',8'-dihydro-2H,5'H-spiro[pyrimidine-5,6'-quinazoline]-2,4,6(1H,3H)-trione