申请人:HEINELT Uwe
公开号:US20080146797A1
公开(公告)日:2008-06-19
The invention provides the process illustrated in scheme 1 for synthesizing heterocyclic compounds of formula I.
In the process, an isothiocyanate of formula II is initially reacted with a primary amine or formula III to give a thiourea of formula IV. Subsequently, the thiourea of formula IV is converted to the corresponding heterocycle of formula I using a base and a sulfonyl chloride.
本发明提供了方案1所示的合成式I
杂环化合物的过程。在该过程中,首先将式II的异
硫氰酸酯与一级胺或式III的胺反应,得到式IV的
硫脲。随后,使用碱和
磺酰氯将式IV的
硫脲转化为相应的式I杂环。