申请人:Schering Aktiengesellschaft
公开号:US04644062A1
公开(公告)日:1987-02-17
.beta.-carbolines of formula I ##STR1## wherein R=C.sub.1-5 alkyl R.sup.4 =H, C.sub.1-5 alkyl or --(CH.sub.2).sub.n --OR with n=1 or 2 and R.sup.A =H, R, (CHR).sub.n --OR, OCH.sub.2 Ph, OPh, OPh(Cl,Br),OR,OCH.sub.2 Ph(Cl,Br) NRR, Cl or Br, wherein n and R have the above meanings and there are one or two R.sup.A 's are prepared, by dehydrogenation at reaction temperatures below ambient temperature in an inert solvent with tert-butyl hypochlorite and a tertiary amine.
式I中的.beta.-咔啉化合物 ##STR1## 其中R=C.sub.1-5烷基,R.sup.4=H,C.sub.1-5烷基或--(CH.sub.2).sub.n --OR,其中n=1或2,R.sup.A=H,R,(CHR).sub.n --OR,OCH.sub.2 Ph,OPh,OPh(Cl,Br),OR,OCH.sub.2 Ph(Cl,Br)NRR,Cl或Br,其中n和R具有上述含义,并且有一个或两个R.sup.A的化合物是通过在惰性溶剂中使用tert-丁基次氯酸盐和三级胺在低于环境温度的反应温度下进行脱氢制备的。