Thiazolidinedione derivative and its use as antidiabetic
US6815457B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2002 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | May 15, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P13/12
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A polymorphic form of 5-[4-[2-(N-methyl-N-(2-pyridyl)amino)ethoxy]-benzyl]thiazolidine-2,4-dione, maleic acid salt (the “Polymorph”) characterized in that it: (i) provides an infra red spectrum containing peaks at 1360, 1326, 1241, 714 and 669 cm−1; and/or (ii) provides a Raman spectrum containing peaks at 1581, 768, 670, 271 and 226 cm−1; and/or (iii) provides a solid-state nuclear magnetic resonance spectrum containing peaks at chemical shifts substantially as set out in Table I; and/or (iv) provides an X-ray powder diffraction (XRPD) pattern containing peaks substantially as set out in Table II; a process for preparing such a compound, a pharmaceutical composition containing such a compound and the use of such a compound in medicine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.