发明名称 |
CRYSTALLINE POLYMORPHIC FORM OF ULIPRISTAL ACETATE |
摘要 |
A novel crystalline polymorphic form of ulipristal acetate useful as an agent for preventing and/or treating uterine leiomyoma and as a contraceptive, and a process for producing the crystalline polymorphic form are provided. The novel crystalline polymorphic form of ulipristal acetate is obtained by dissolving an isopropanol-solvated crystal of ulipristal acetate in a mixed solvent containing ethanol and water, and crystallizing an ulipristal acetate from the solution without addition of a seed crystal to the solution. |
申请公布号 |
WO2014050106(A1) |
申请公布日期 |
2014.04.03 |
申请号 |
WO2013JP05709 |
申请日期 |
2013.09.26 |
申请人 |
ASKA PHARMACEUTICAL CO., LTD. |
发明人 |
IWASHITA, SHIGEKI;HAYASHI, HIROYUKI;MIYAZAKI, KOICHI |
分类号 |
C07J41/00;A61K31/58;A61P5/36 |
主分类号 |
C07J41/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|