.

Pharmaceutical Business Intelligence

  • Anticipate P&T budget requirements
  • Evaluate market entry opportunities
  • Find generic sources and suppliers
  • Predict branded drug patent expiration

► Plans and Pricing

Upgrade to enjoy subscriber-only features like email alerts and data export. See the Plans and Pricing

DrugPatentWatch Database Preview

Claims for Patent: 9,073,933

« Back to Dashboard

Claims for Patent: 9,073,933

Title:Oxycodone hydrochloride having less than 25 PPM 14-hydroxycodeinone
Abstract: In certain embodiments the invention is directed to a process for preparing an oxycodone hydrochloride composition having less than 25 ppm of 14-hydroxycodeinone.
Inventor(s): Chapman; Robert (North Kingstown, RI), Rider; Lonn S. (Foster, RI), Hong; Qi (Sharon, MA), Kyle; Donald (Newtown, PA), Kupper; Robert (Coventry, RI)
Assignee: Purdue Pharma L.P. (Stamford, CT) The P.F. Laboratories, Inc. (Totowa, NJ) Purdue Pharmaceuticals L.P. (Wilson, NC) Rhodes Technologies (Coventry, RI)
Application Number:13/366,755
Patent Claims: 1. An oxycodone hydrochloride composition which comprises at least 95% oxycodone hydrochloride, 8.alpha.,14-dihydroxy-7,8-dihydrocodeinone, and less than 25 ppm of 14-hydroxycodeinone.

2. The oxycodone hydrochloride composition of claim 1, having less than 15 ppm of 14-hydroxycodeinone.

3. The oxycodone hydrochloride composition of claim 1, having less than 10 ppm of 14-hydroxycodeinone.

4. The oxycodone hydrochloride composition of claim 1, having less than 5 ppm of 14-hydroxycodeinone.

5. The oxycodone hydrochloride composition of claim 1, wherein the composition has a lower limit of 14-hydroxycodeinone of 0.25 ppm.

6. The oxycodone hydrochloride composition of claim 1, wherein the composition has a lower limit of 14-hydroxycodeinone of 0.5 ppm.

7. The oxycodone hydrochloride composition of claim 1, wherein the composition has a lower limit of 14-hydroxycodeinone of 1 ppm.

8. The oxycodone hydrochloride composition of claim 1, wherein the composition has a lower limit of 14-hydroxycodeinone of 2 ppm.

9. The oxycodone hydrochloride composition of claim 1, wherein the composition has a lower limit of 14-hydroxycodeinone of 5 ppm.

10. A process for preparing an oxycodone hydrochloride composition having less than 25 ppm 14-hydroxycodeinone, comprising removing 8.alpha.,14-dihydroxy-7,8-dihydrocodeinone from an oxycodone base composition and converting the oxycodone base composition to an oxycodone hydrochloride composition having less than 25 ppm 14-hydroxycodeinone.

11. The process of claim 10, comprising combining hydrochloric acid and the oxycodone base composition in a solvent to form a solution, and isolating the oxycodone hydrochloride composition having less than 25 ppm 14-hydroxycodeinone from the solution.

12. The process of claim 10, wherein the oxycodone hydrochloride composition having less than 25 ppm 14-hydroxycodeinone is isolated from the solution by lyophilizing or spray drying the solution.

13. The process of claim 12, wherein the oxycodone hydrochloride composition having less than 25 ppm 14-hydroxycodeinone is isolated from the solution by crystallization and filtration.

14. The process of claim 10, wherein the oxycodone hydrochloride composition having less than 25 ppm 14-hydroxycodeinone is formed by hydrogenation.

15. The process of claim 10 comprising reacting the oxycodone base composition with an acid having a higher pH than hydrochloric acid to form an corresponding acid addition salt of oxycodone, and converting the acid addition salt of oxycodone to oxycodone hydrochloride.

16. An oxycodone hydrochloride composition which comprises at least 95% oxycodone hydrochloride, 8.alpha.,14-dihydroxy-7,8-dihydrocodeinone, less than 5 ppm of codeinone, and less than 25 ppm of 14-hydroxycodeinone.

17. The oxycodone hydrochloride composition of claim 16, having less than 5 ppm of 14-hydroxycodeinone.

18. The oxycodone hydrochloride composition of claim 16, wherein the composition has a lower limit of 14-hydroxycodeinone of 0.25 ppm.

19. The oxycodone hydrochloride composition of claim 16, wherein the composition has a lower limit of 14-hydroxycodeinone of 0.5 ppm.

20. The oxycodone hydrochloride composition of claim 16, wherein the composition has a lower limit of 14-hydroxycodeinone of 1 ppm.
« Back to Dashboard

For more information try a trial or see the database preview and plans and pricing

How are People Using DrugPatentWatch?

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

`abc