N-(4-fluorobenzyl)-N',N"-di-n-propyl-[1,3,5]triazine-2,4,6-triamine 、 hydrochloric acid diethyl ether 、 以to yield N-(4-fluoro-benzyl)-N′,N″-di-n-propyl-[1,3,5]triazine-2,4,6-triamine hydrochloride (22a)的产率得到N-(4-fluorobenzyl)-N',N"-di-n-propyl-[1,3,5]triazine-2,4,6-triamine hydrochloride