发明授权
US08624030B2 N-demethylation of 6-keto morphinans 有权
6-酮吗啡的N-去甲基化

N-demethylation of 6-keto morphinans
摘要:
The present invention provides processes for the demethylation of an N-methyl morphinan comprising a ketone functional group. In particular, the invention provides methods for the protection of the ketone functional group such that impurities are not generated during the demethylation of the N-methyl morphinan.
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