6-amino-1,3-diethylquinazoline-2,4(1H,3H)-dione 、
3-methyl-4-(pyridin-4-ylcarbamoyl)butyric acid 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以5.51%的产率得到N-(1,3-diethyl-2,4-dioxo-1,2,3,4-tetrahydroquinazolin-6-yl)-3-methyl-N'-(pyridin-4-yl)pentanediamide