Reduce the method for impurity in the oxycodone base

Reduce the method for impurity in the oxycodone base

  • CN 101,652,369 A
  • Filed: 12/04/2007
  • Published: 02/17/2010
  • Est. Priority Date: 12/04/2006
  • Status: Active Application
First Claim
Patent Images

1. method that is used for reducing oxycodone base composition impurity, this method comprises:

  • (a) mix oxycodone base and propyl carbinol, (b) adjust pH to about 8.5 to about 12.0, keep temperature to be lower than about 25 ℃

    simultaneously, separate the oxycodone base composition with (c).

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×