The present invention provides methods of N-demethylating, N-methylated heterocycles and N-methyl, N-oxide heterocycles using a transition metal with an oxidation state of zero, ferrocene or substituted derivatives thereof, or Cr
3+
. N-demethylated heterocycles prepared by the methods of the present invention are also provided.
本发明提供了使用氧化态为零的过渡
金属、
二茂铁或其取代衍
生物或Cr3+对N-甲基化杂环和N-甲基、N-氧化物杂环进行N-去甲基化的方法。本发明还提供了通过本发明方法制备的N-去甲基化杂环。