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Details for Patent: 7,659,405

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Details for Patent: 7,659,405

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:Sep 21, 2006
Application Number:11/524,972
Claims:1. A process for preparing a pharmaceutical composition comprising ritonavir, said process comprising dissolving Form II crystalline ritonavir in a pharmaceutically acceptable organic 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..
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