申请人:——
公开号:US20040044199A1
公开(公告)日:2004-03-04
A method for preparing cyclic urea compounds from at least an activated carbamic acid derivative containing an unprotected primary or secondary amine function, includes a cyclization step which consists in a reaction between the primary or secondary amine function and the carbamic acid function of the carbamic acid derivative(s).
一种从至少含有未保护的一级或二级胺基的活性氨基甲酸衍生物制备环状脲化合物的方法,包括一个环化步骤,其中包括对氨基甲酸衍生物的氨基酸功能和氨基甲酸功能之间的反应。