Patent ID: 7368574
Filing Date: 2008-05-06
Classification: A61P,C07D

Abstract:
1. A crystalline hydrate of 5-[4-[2-(N-methyl-N-(2-pyridyl) amino)ethoxy]benzyl]thiazolidine-2,4-dione, maleic acid salt, wherein said hydrate comprises water in the range of from 0.3 to 0.6 molar equivalents and provides at least one of: (i) an infra red spectrum containing peaks at 1757, 1331, 1290, 1211 and 767 cm (ii) a Raman spectrum containing peaks at 1758, 1610, 1394, 1316 and 1289 cm (iii) a solid state nuclear magnetic resonance spectrum containing chemical shifts substantially as set out in Table I; and (iv) an X-ray powder diffraction pattern substantially as set out in FIG. IV.