Substituted guanidine derivatives of the formula I, ##STR1## are prepared by a) reacting calcium cyanamide with an alcohol of the formula R.sup.10 --OH to give an isourea derivative of the formula II, ##STR2## and b) reacting the substituted isourea with a primary or secondary amine of the formula III, ##STR3## where the substituents R.sup.1 and R.sup.2 and R.sup.10 have the meanings explained in the description.
公式I的取代
胍衍
生物,##STR1##的制备方法为a)将
氰胺钙与具有公式R.sup.10 --OH的醇反应,得到公式II的异
脲衍
生物,##STR2##和b)将取代异
脲衍
生物与具有公式III的一级或二级胺反应,##STR3##其中取代基R.sup.1、R.sup.2和R.sup.10的含义在说明中解释。