Details for Patent: 8,193,367
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Title: | Polymorph of a pharmaceutical |
Abstract: | A new crystalline polymorph of ritonavir and methods for its use and preparation are disclosed. |
Inventor(s): | Bauer; John F. (Lake Bluff, IL), Saleki-Gerhardt; Azita (Libertyville, IL), Narayanan; Bikshandarkoil A. (Newton, CT), Chemburkar; Sanjay R. (Gurnee, IL), Patel; Ketan M. (Wheeling, IL), Spiwek; Harry O. (Kenosha, WI), Bauer; Philip E. (Chester Springs, PA), Allen; Kimberly A. (Trevor, WI) |
Assignee: | Abbott Laboratories (Abbott Park, IL) |
Filing Date: | Dec 22, 2009 |
Application Number: | 12/644,439 |
Claims: | 1. A process for preparing a composition comprising ritonavir, said process comprising dissolving Form II crystalline ritonavir in a solvent, wherein said Form II crystalline ritonavir has characteristic peaks in the powder X-ray diffraction pattern at values of two theta of 8.67.degree..+-.0.1.degree., 9.88.degree..+-.0.1.degree., 16.11.degree..+-.0.1.degree., 16.70.degree..+-.0.1.degree., 17.36.degree..+-.0.1.degree., 17.78.degree..+-.0.1.degree., 18.40.degree..+-.0.1.degree., 18.93.degree..+-.0.1.degree., 20.07.degree..+-.0.1.degree., 20.65.degree..+-.0.1.degree., 21.71.degree..+-.0.1.degree. and 25.38.degree..+-.0.1.degree.. 2. The process of claim 1, wherein said Form II crystalline ritonavir has characteristic peaks in the powder X-ray diffraction pattern at values of two theta of 8.67.degree..+-.0.1.degree., 9.51.degree..+-.0.1.degree., 9.88.degree..+-.0.1.degree., 10.97.degree..+-.0.1.degree., 13.74.degree..+-.0.1.degree., 16.11.degree..+-.0.1.degree., 16.70.degree..+-.0.1.degree., 17.36.degree..+-.0.1.degree., 17.78.degree..+-.0.1.degree., 18.40.degree..+-.0.1.degree., 18.93.degree..+-.0.1.degree., 19.52.degree..+-.0.1.degree., 19.80.degree..+-.0.1.degree., 20.07.degree..+-.0.1.degree., 20.65.degree..+-.0.1.degree., 21.49.degree..+-.0.1.degree., 21.71.degree..+-.0.1.degree., 22.23.degree..+-.0.1.degree., 25.38.degree..+-.0.1.degree., 26.15.degree..+-.0.1.degree. and 28.62.degree..+-.0.1.degree.. 3. The process of claim 1, wherein said solvent is ethyl acetate. 4. The process of claim 1, wherein said solvent is isopropyl acetate. 5. The process of claim 1, wherein said solvent comprises ethanol and oleic acid. |