Hydrate of 5-[4-[2-(N-methyl-N-(2-pyridil)amino)ethoxy]benzyl]thiazolidine-2,4-dione maleic acid salt
US7045633B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Oct 24, 2003 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Oct 25, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P3/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A hydrate of 5-[4-[2-(N-methyl-N-(2-pyridyl)amino)ethoxy]benzyl]thiazolidine-2,4-dione, maleic acid salt, characterized in that it: (i) comprises water in the range of from 0.2 to 1.1% w/w; and (ii) provides an infrared spectrum containing peaks at 764 and 579 cm−1; and/or (iii) provides an X-ray powder diffraction (XRPD) pattern substantially as set out in FIG. II; a process for the preparation of such a compound, a pharmaceutical composition containing such a compound and the use of such a compound or composition in medicine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.