The invention provides processes for the preparation of morphinans having a tertiary amine. In particular, the present invention provides processes for the formation of tertiary amine alkaloids by direct N-alkylation of secondary amine alkaloids, the processes co-mediated by an alkylating agent and a protic solvent or a mixture of a protic solvent and an aprotic solvent.
该发明提供了制备含有三级胺基团的
吗啡醇类化合物的过程。具体来说,本发明提供了通过直接对二级
胺类生物碱进行N-烷基化而形成三级
胺类生物碱的过程,该过程由烷基化剂和质子溶剂或质子溶剂与非质子溶剂混合物共同介导。