申请人:Eisai R&D Management Co., Ltd.
公开号:EP1862463A1
公开(公告)日:2007-12-05
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.
在粉末 X 射线衍射中,5-[2-氨基-4-(2-呋喃基)嘧啶-5-基]-1-甲基吡啶-2(1H)-酮的衍射峰的衍射角(2θ ± 0.2°)为 9.7°和/或 21.9°,这种晶体适合用作预防和治疗便秘等疾病的活性成分。5-[2-氨基-4-(2-呋喃基)嘧啶-5-基]-1-甲基吡啶-2(1H)-酮水合物晶体和无定形的 5-[2-氨基-4-(2-呋喃基)嘧啶-5-基]-1-甲基吡啶-2(1H)-酮水合物也适用于预防和治疗便秘等疾病的活性成分。