申请人:Taiho Pharmaceutical Co., Ltd.
公开号:EP3296299A1
公开(公告)日:2018-03-21
Provided are crystals of 3-ethyl-4-3-isopropyl-4-(4-(1-methyl-1H-pyrazol-4-yl)-1H-imidazol-1-yl)-1H-pyrazolo[3,4-b]pyridin-1-yl}benzamid which are stable and show excellent oral absorbability.
The crystals are Form II crystals of 3-ethyl-4-3-isopropyl-4-(4-(1-methyl-1H-pyrazol-4-yl)-1H-imidazol-1-yl)-1H-pyrazolo[3,4-b]pyridin-1-yl}benzamide showing an X-ray powder diffraction spectrum having at least three characteristic diffraction peaks at angles (2θ ± 0.2°) selected from the group consisting of 7.7°, 8.0°, 11.1°, 12.5°, 12.9°, 15.2°, 15.8°, 17.2°, 19.0°, 22.5°, 26.1°, and 27.4°.
本发明提供了 3-乙基-4-3-异丙基-4-(4-(1-甲基-1H-吡唑-4-基)-1H-咪唑-1-基)-1H-吡唑并[3,4-b]吡啶-1-基}苯甲酰胺的晶体,该晶体性质稳定,具有良好的口服吸收性。
这些晶体是 3-乙基-4-3-异丙基-4-(4-(1-甲基-1H-吡唑-4-基)-1H-咪唑-1-基)-1H-吡唑并[3,4-b]吡啶-1-基}苯甲酰胺的 Form II 晶体,显示出 X 射线粉末衍射谱,其中至少有三个特征衍射峰,其角度 (2θ ± 0.2°)选自7.7°、8.0°、11.1°、12.5°、12.9°、15.2°、15.8°、17.2°、19.0°、22.5°、26.1°和27.4°组成的组。