CN118652186A — 艾拉司群二盐酸盐的新晶型及其制备方法和用途
Assigned to Aurisco Pharmaceutical Co ltd · Expires 2024-09-17 · 2y expired
What this patent protects
本发明公开了多种艾拉司群二盐酸盐的新晶型,其中晶型APTI‑I的以2θ角度表示的X‑射线粉末衍射图在9.6°±0.2°,12.0°±0.2°,13.5°±0.2°,20.5°±0.2°,21.9°±0.2°,22.4°±0.2°处有特征峰。该晶型稳定性好,收率可达92.3%,纯度高达99.90%,有机溶剂残留量低,制备操作简单且容易控制,更适合工业中放大生产。本发明提供的晶型APTI‑II和APTI‑III的纯度可达99.92%和99.95%,可为艾拉司群或其盐的生产过程中的纯化提供更多的选择。
USPTO Abstract
本发明公开了多种艾拉司群二盐酸盐的新晶型,其中晶型APTI‑I的以2θ角度表示的X‑射线粉末衍射图在9.6°±0.2°,12.0°±0.2°,13.5°±0.2°,20.5°±0.2°,21.9°±0.2°,22.4°±0.2°处有特征峰。该晶型稳定性好,收率可达92.3%,纯度高达99.90%,有机溶剂残留量低,制备操作简单且容易控制,更适合工业中放大生产。本发明提供的晶型APTI‑II和APTI‑III的纯度可达99.92%和99.95%,可为艾拉司群或其盐的生产过程中的纯化提供更多的选择。
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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