abstract |
The invention relates to a polymorphic form of 5- [4- [2- (N-methyl-N- (2-pyridyl) amino) ethoxy] benzyl] thiazolidine-2,4- dione, maleic acid salt spectra containing peaks at 1752, 1546, 1154, 621 and 602 cm-1, and / or Raman spectrum containing peaks at 1751, 1243 and 602 cm-1, and / or solid state nuclear magnetic resonance spectrum at 111.9, 114.8, 119.6, 129.2, 134.0, 138.0, 144.7, 153.2, 1571, 170.7, 172.0 and 175.0 ppm, and / a powder diffractogram (XRPD) which provides calculated distances of the crystal lattice 6,46, 5,39, 4,83, 4,68,3,71, 3,63, 3,58 and 3,48 A. The invention and to a method for preparing this compound, a pharmaceutical composition containing it and its use in medicine. |