6-(Furan-2-ylmethyl-phenyl-amino)-3-methyl-5-(phenyl-hydrazonomethyl)-1H-pyrimidine-2,4-dione 在
lead(IV) acetate 作用下,
以
乙腈 为溶剂,
以42%的产率得到7-Methyl-3,12-diphenyl-16-oxa-3,5,7,11,12-pentazatetracyclo[8.6.0.01,13.04,9]hexadeca-4(9),10,14-triene-6,8-dione