Crystals of pyrimidine compound and process for producing the same
US7767812B2 · kind B2 · utility
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Key dates
| Filing date | Dec 30, 2008 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Dec 30, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D405/06
- 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 9.7° and/or 21.9° in a powder X-ray diffraction are suitable for an active ingredient of a preventing and therapeutic agent for diseases such as constipation. Crystals of 5-[2-amino-4-(2-furyl)pyrimidin-5-yl]-1-methylpyridin-2(1H)-one hydrate and amorphous 5-[2-amino-4-(2-furyl)pyrimidin-5-yl]-1-methylpyridin-2(1H)-one hydrate are also suitable for an active ingredient of a preventing and therapeutic agent for diseases such as constipation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.