ethyl N-(dimethylcarbamoyl)carbamimidothioate 、
异氰酸甲酯 在
乙酸乙酯 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以to give ethyl N-dimethylcarbamoyl-4-methylthioallophanimidate (a compound of formula I), m.p. 109°-111.5° C.的产率得到ethyl N-dimethylcarbamoyl-4-methylthioallophanimidate