Invention Grant
- Patent Title: Process for reducing impurities in oxycodone base
- Patent Title (中): 降低羟考酮基质杂质的方法
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Application No.: US11949824Application Date: 2007-12-04
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Publication No.: US07875719B2Publication Date: 2011-01-25
- Inventor: D. Phillip Cox , Yong Zhang
- Applicant: D. Phillip Cox , Yong Zhang
- Agent Mary A. Appollina
- Main IPC: C07D489/02
- IPC: C07D489/02

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.
Public/Granted literature
- US20080132703A1 Process for Reducing Impurities in Oxycodone Base Public/Granted day:2008-06-05
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