CN Patent

CN114805216A — 奥拉帕利晶型及其制备方法

Assigned to Sichuan Kelun Pharmaceutical Research Institute Co Ltd · Expires 2022-07-29 · 4y expired

What this patent protects

本发明提供一种奥拉帕利晶型的制备方法，包括以下步骤：i)将奥拉帕利溶解在溶剂中得到奥拉帕利溶液；ii)将奥拉帕利溶液滴加到纯水或含水溶剂中；然后过滤干燥。采用本发明方法获得奥拉帕利晶型，因晶体尺寸较大，因此湿品中水含量低，解决了针状晶体常有的过滤困难、过滤洗涤效率差、烘干时间长、残留溶剂容易超标、杂质容易超标等技术问题。

USPTO Abstract

本发明提供一种奥拉帕利晶型的制备方法，包括以下步骤：i)将奥拉帕利溶解在溶剂中得到奥拉帕利溶液；ii)将奥拉帕利溶液滴加到纯水或含水溶剂中；然后过滤干燥。采用本发明方法获得奥拉帕利晶型，因晶体尺寸较大，因此湿品中水含量低，解决了针状晶体常有的过滤困难、过滤洗涤效率差、烘干时间长、残留溶剂容易超标、杂质容易超标等技术问题。

Drugs covered by this patent

Patent Metadata

Patent number
CN114805216A
Jurisdiction
CN
Classification
—
Expires
2022-07-29
Drug substance claim
No
Drug product claim
No
Assignee
Sichuan Kelun Pharmaceutical Research Institute Co Ltd
Source
FDA Orange Book + USPTO grounding via Google Patents

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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