2-nitroamino-5-(pyridin-4-yl)methyl-4-pyrimidone 、
2-(二甲氨基甲基)-4-(2-氨乙基硫甲基)噻唑 以to yield 2-[2-(2-dimethylaminomethyl-4-thiazolylmethylthio)ethyl]amino-5-(4-pyridyl)methyl-4-pyrimidone as a trihydrochloride salt melting at 200°-202° C.的产率得到2-[2-(2-dimethylaminomethyl-4-thiazolylmethylthio)ethyl]amino-5-(4-pyridyl)methyl-4-pyrimidone