申请人:BIOTA PHARMACEUTICALS, INC.
公开号:US20160194310A1
公开(公告)日:2016-07-07
A crystalline form of 6-2-[1-(6-methyl-3-pyridazinyl)-4-piperidinyl]ethoxy}-3-ethoxy-1,2-benzoxazole is provided which is useful in the treatment of infections caused by Picornaviridae such as human rhinovirus (HRV), and in particular the crystal form is an anhydrous crystalline free base form of 6-2-[1-(6-methyl-3-pyridazinyl)-4-piperidinyl]ethoxy}-3-ethoxy-1,2-benzoxazole. In addition, a method of manufacturing the free base crystalline form is also provided, including a step of micronizing the compound particles, optionally using a wetting agent, as well as pharmaceutical compositions incorporating the free base crystalline form such as tablets or suspensions, and methods of therapeutic treatments using this form and pharmaceutical compositions thereof.
本发明提供了一种6-2-[1-(6-甲基-3-吡啶嗪基)-4-哌啶基]乙氧基}-3-乙氧基-1,2-苯并咪唑的晶体形式,该晶体形式可用于治疗由小肠病毒科引起的感染,例如人类鼻病毒(HRV),特别是该晶体形式是6-2-[1-(6-甲基-3-吡啶嗪基)-4-哌啶基]乙氧基}-3-乙氧基-1,2-苯并咪唑的无水结晶自由基形式。此外,本发明还提供了一种制造自由基结晶形式的方法,包括微粉化化合物颗粒的步骤,可选地使用润湿剂,以及包含自由基结晶形式的制药组合物,例如片剂或悬浮液,以及使用该形式和制药组合物的治疗方法。