发明名称 |
DAPAGLIFLOZIN CRYSTALLINE FORM AND PREPARATION METHOD THEREOF |
摘要 |
A crystalline form of dapagliflozin represented by formula (I) is provided. The crystalline form has a characteristic absorption peak in an X-ray powder diffraction pattern at a diffraction angle 2θ and interplanar spacing (value d) at about 4.318 (20.45) in an X-ray powder diffraction pattern. The crystalline form can be prepared by dissolving dapagliflozin in good organic solvents, adding poor solvents, stirring to crystallization, filtering and drying. The provided crystalline form of dapagliflozin has the following features: good solubility, low hygroscopicity, high stability and good preparation reproducibility.; |
申请公布号 |
US2016347731(A1) |
申请公布日期 |
2016.12.01 |
申请号 |
US201515117533 |
申请日期 |
2015.01.19 |
申请人 |
Jiangsu Hansoh Pharmaceutical Group Co., Ltd. |
发明人 |
Zhu Xifeng;Li Xiaobi;Zhang Tiancheng;Yuan Fuping |
分类号 |
C07D309/10 |
主分类号 |
C07D309/10 |
代理机构 |
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代理人 |
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主权项 |
1. A crystalline form of dapagliflozin represented by formula (I):the crystalline form having a characteristic X-ray powder diffraction (XRPD) peak at:
Angle (2θ) d-Value (Angstrom) about 4.318 about 20.45. |
地址 |
Lianyungang, Jiangsu CN |