申请人:GRUPPO LEPETIT S.p.A.
公开号:EP0370283A2
公开(公告)日:1990-05-30
The present invention is directed to an improved process for preparing 63 carboxyamides of teicoplanin (eventually having ¹⁵-N-alkyl substituents) by reacting a teicoplanin like compound with an activated ester forming reagent to give an ester function which is substituted by an amine, by contacting an excess of said amine in an organic polar solvent at a temperature comprised between 5°C and 60°C.
本发明涉及一种用于制备 63 种茶碱羧酰胺(最终具有 ¹⁵-N-烷基取代基)的改进工艺,其方法是将茶碱类化合物与活化的酯形成试剂反应,得到被胺取代的酯官能团,将过量的所述胺在有机极性溶剂中接触,温度在 5°C 至 60°C 之间。