PYRIMIDINE COMPOUND CRYSTAL OR AMORPHOUS FORM AND PROCESS FOR PRODUCING THE SAME

摘要

Crystals of 5-[2-amino-4-(2-furyl)pyrimidin-5-yl]-1-methylpyridin-2(1 H )-one having a diffraction peak at a diffraction angle (2¸ ± 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(1 H )-one hydrate and amorphous 5-[2-amino-4-(2-furyl)pyrimidin-5-yl]-1-methylpyridin-2(1 H )-one hydrate are also suitable for an active ingredient of a preventing and therapeutic agent for diseases such as constipation.