CRYSTALLINE POLYMORPH OF 15 -HYDROXY-OSATERONE ACETATE
申请人:ASKA Pharmaceutical Co., Ltd.
公开号:EP3456729A1
公开(公告)日:2019-03-20
Provided is a crystalline polymorphic form A of 15β-hydroxy-osaterone acetate having an improved stability (storage stability, pulverization stability, and absorption characteristics). In a powder X-ray diffraction spectrum, characteristic diffraction peaks of the crystalline polymorphic form A of 15β-hydroxy-osaterone acetate appear at diffraction angles 2θ of 9.6° ± 0.2°, 17.1° ± 0.2°, and 20.2° ± 0.2°. The crystalline polymorphic form A has a melting point of 280 to 283°C and is a prism crystal.
本文提供了一种 15β-hydroxy-osaterone acetate 的结晶多晶型 A,其稳定性(贮存稳定性、粉碎稳定性和吸收特性)均有所提高。在粉末 X 射线衍射谱中,15β-羟基-醋酸奥沙泰酮的结晶多晶型 A 的特征衍射峰出现在 9.6°±0.2°、17.1°±0.2° 和 20.2°±0.2°的衍射角 2θ。结晶多晶型 A 的熔点为 280 至 283°C,为棱柱晶体。
CRYSTALLINE POLYMORPH OF 15ß-HYDROXY-OSATERONE ACETATE
申请人:ASKA Pharmaceutical Co., Ltd.
公开号:EP3456729B1
公开(公告)日:2020-09-02
CRYSTALLINE POLYMORPH OF 15B-HYDROXY-OSATERONE ACETATE
申请人:ASKA Pharmaceutical Co., Ltd.
公开号:US20190127417A1
公开(公告)日:2019-05-02
Provided is a crystalline polymorphic form A of 15β-hydroxy-osaterone acetate having an improved stability (storage stability, pulverization stability, and absorption characteristics). In a powder X-ray diffraction spectrum, characteristic diffraction peaks of the crystalline polymorphic form A of 15β-hydroxy-osaterone acetate appear at diffraction angles 2θ of 9.6°±0.2°, 17.1°±0.2°, and 20.2°±0.2°. The crystalline polymorphic form A has a melting point of 280 to 283° C. and is a prism crystal.
[EN] DYSURIA-ALLEVIATING AGENT<br/>[FR] AGENT SOULAGEANT LA DYSURIE<br/>[JA] 排尿障害改善剤
Oxygenated derivatives of 2-oxachlormadinone acetane (17-acetoxy-6-chloro-2-oxapregna-4, 6-diene-3, 20-dione) at C11, C15, and C16 were prepared as potential antiandrogenic agents. Biological evaluation showed the 15β-hydroxyl compound to have a high potent antiandrogenic activity when tested in the castrated male rat.