3-Methyl-5-(methylthio)-1,2,4-triazin-6-amin 、
N,N'-(2,4-Dioxo-1,3-diazetidin-1,3-diyl)bis(carbamidsaeure-ethylester) 以
甲苯 为溶剂,
反应 4.0h,
以11%的产率得到<3,4-Dihydro-7-methyl-9-(methylthio)-2,4-dioxo-2H-1,3,5-triazino<2,1-f><1,2,4>triazin-3-yl>carbamidsaeure-ethylester