Patent number: 7160881
Abstract: The present invention relates to a new crystalline modification of 2-(3,5-bis-trifluoromethyl-phenyl)-N-[6-(1,1-dioxo-1?6-thiomorpholin-4-yl)-4-(4-fluoro-2-methyl-phenyl)-pyridin-3-yl]-N-methyl-isobutyramide characterized by the following X-ray diffraction pattern obtained with a CuK?, radiation at 2? (2Theta)=4.5, 6.4, 7.5, 7.7, 8.0, 8.2, 10.0, 10.2, 10.9, 11.1, 12.9, 13.4, 14.0, 14.5, 15.1, 15.6, 16.2, 16.5, 17.3, 17.5, 18.0, 18.9, 19.3, 19.5, 19.9, 20.1, 20.6, 21.0, 21.4, 22.7, 23.1 and 23.6 and an infrared spectrum having sharp bands at 2925, 2854, 1637, 1604, 1484, 1395, 1375, 1285, 1230, 1172, 1125, 1082, 999, 943, 893, 868, 860, 782, 705, 684 cm?1, and wherein the extrapolated melting point (DSC) is 137.2° C.
Type:
Grant
Filed:
January 27, 2004
Date of Patent:
January 9, 2007
Assignee:
Hoffmann-La Roche Inc.
Inventors:
Torsten Hoffmann, Fabienne Hoffmann-Emery, Sonja Nick, Urs Schwitter, Pius Waldmeier