A NOVEL FEBUXOSTAT CRYSTALLINE FORM AND THE PROCESS FOR THE PREPARATION THEREOF

摘要

The present invention relates to a crystalline form III of 2-(3-cyano-4-isobutyloxyphenyl)- 4-methyl-5-thiazolecarboxylic acid which shows the X-ray powder diffraction pattern of Figure 1, having characteristic peaks at a reflection angle 2 ? of about 3.0, 5.9, 8.8, 11.8, 12.3, 13.4, 14.7, 17.7, 20.1, 23.8, 24.4, 25.2, 26.1, 27.1, 29.1, 32.0.