巴比妥酸 、
4-(3-(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-7H-purin-7-yl)propoxy)benzaldehyde 、
3-氨基苯酚 在
tungstic acid supported on silica coated magnetic nanoparticles 作用下,
以
乙醇 为溶剂,
反应 3.0h,
以80%的产率得到5-(4-(3-(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-7H-purin-7-yl)propoxy)phenyl)-10-(3-hydroxyphenyl)-5,10-dihydropyrido[2,3-d:6,5-d']dipyrimidine-2,4,6,8(1H,3H,7H,9H)-tetraone