Invention Grant
US07875719B2 Process for reducing impurities in oxycodone base 有权
降低羟考酮基质杂质的方法

  • Patent Title: Process for reducing impurities in oxycodone base
  • Patent Title (中): 降低羟考酮基质杂质的方法
  • Application No.: US11949824
    Application Date: 2007-12-04
  • Publication No.: US07875719B2
    Publication Date: 2011-01-25
  • Inventor: D. Phillip CoxYong Zhang
  • Applicant: D. Phillip CoxYong Zhang
  • Agent Mary A. Appollina
  • Main IPC: C07D489/02
  • IPC: C07D489/02
Process for reducing impurities in oxycodone base
Abstract:
The present invention is directed to a process for using n-butanol to prepare an oxycodone base compositions having reduced levels of impurities such as 14-hydroxycodeinone and DHDHC.
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