Patent ID: 6815457
Filing Date: 2004-11-09
Classification: A61P,C07D

Abstract:
A compound which is a polymorphic form of 5-[4-[2-(N-methyl-N-(2-pyridyl)amino)ethoxy]benzyl]thiazolidine-2,4-dione, maleic acid salt, wherein the compound provides at least one of:(i) an infra red spectrum containing peaks at 1360, 1326, 1241, 714 and 669 cmâˆ’1; (ii) a Raman spectrum containing peaks at 1581, 768, 670, 271 and 226 cmâˆ’1; (iii) a solid-state 13C nuclear magnetic resonance spectrum containing peaks at chemical shifts substantially as set out in Table I; and (iv) an X-ray powder diffraction pattern containing peaks substantially as set out in Table II.