申请人:Ciba-Geigy Corporation
公开号:US04540514A1
公开(公告)日:1985-09-10
The invention relates to a process for the manufacture of the known 5-carbamoyl-10-oxo-10,11-dihydro-5H-dibenz[b,f]azepine of the formula III which is characterized in that, for example, 5-cyano-5H-dibenz[b,f]azepine of the formula I is nitrated to form 5-cyano-10-nitro-5H-dibenz[b,f]azepine of the formula II, this is subjected to hydrolysis, then reduction, then the reduction product contained in the reaction mixture is subjected to hydrolysis and the end product of the formula III is isolated in pure form. The process is illustrated by the following reaction scheme: ##STR1## The invention relates also to new intermediates produced in these reactions.
本发明涉及一种制造已知的式III的5-氨基甲酰基-10-氧代-10,11-二氢-5H-二苯并[b,f]氮杂烷的过程,其特征在于,例如,将式I的5-氰基-5H-二苯并[b,f]氮杂烷硝化以形成式II的5-氰基-10-硝基-5H-二苯并[b,f]氮杂烷,然后进行水解、还原,然后将反应混合物中含有的还原产物进行水解,从而分离出纯的式III的终产物。该过程由以下反应方程式说明:##STR1## 本发明还涉及在这些反应中产生的新中间体。