Crystals of 5-[2-amino-4-(2-furyl) pyrimidin-5-yl]-1-methylpyridin-2(1H)-one and processes for preparing the same
US7396928B2 · kind B2 · utility
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Key dates
| Filing date | Mar 20, 2006 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | Aug 9, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D405/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Crystals of 5-[2-amino-4-(2-furyl)pyrimidin-5-yl]-1-methylpyridin-2(1H)-one having a diffraction peak at a diffraction angle (2θ±0.2°) of 12.8°, 18.1° and/or 23.5° in a powder X-ray diffraction are excellent in stability against light, therefore are suitable for an active ingredient of a preventing and therapeutic agent for diseases such as constipation.
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