反应详情

Reacting 3-bromomethylpyrazole with ethylenediamine by the procedure of Example 34 and reacting the resulting N-(3-pyrazolylmethyl)ethylenediamine with N-cyano-N',S-dimethylisothiourea by the procedue of Example 3(d) gives N-cyano-N'-methyl-N"-[2-(3-pyrazolylmethylamino)ethyl]guanidine. Hydrolysis of this compound by the procedure of Example 3(e) gives N-methyl-N'-[2-(3-pyrazolylmethylamino)ethyl]-guanidine trihyrochloride.