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US09073934B2 Method for the N-demethylation of N-methyl heterocycles 有权
N-甲基杂环N-去甲基化方法

Method for the N-demethylation of N-methyl heterocycles
Abstract:
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 Cr3+. N-demethylated heterocycles prepared by the methods of the present invention are also provided.
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