ethyl 6-{[(3-cyano-4,6-diphenylpyridin-2-yl)thio]methyl}-1-methyl-4-(3-nitrophenyl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate 在
sodium hydride 作用下,
以
N,N-二甲基甲酰胺 、 mineral oil 为溶剂,
以57%的产率得到1-methyl-4-(3-nitrophenyl)-7,9-diphenyl-4,6-dihydropyrido[3",2":4',5']thieno[2',3':5,6]pyrido[4,3-d]pyrimidine-2,5(1H,3H)-dione