4,6-dichloro-N-(prop-2-yn-1-yl)-1,3,5-triazin-2-amine 、 ethylamine tetrahydrofuran 、
N-methyl-N’-n-propyl-N”-prop-2-ynyl[1,3,5]triazine-2,4,6-triamine 以to yield 6-chloro-N-ethyl-N′-prop-2-ynyl-[1,3,5]triazine-2,4-diamine (56) in 89% yield的产率得到6-chloro-N-ethyl-N'-prop-2-ynyl-[1,3,5 ]triazine-2,4-diamine