CN Patent

CN113121451B — 一种噁拉戈利钠纯化制备方法

Assigned to Jiangsu Hai An Pharmaceutical Co ltd · Expires 2022-11-18 · 3y expired

What this patent protects

本发明公开了一种噁拉戈利钠纯化制备方法，包括：(1)将化合物I放入反应溶剂中；(2)向所述反应液中加入稀盐酸调节体系pH至3‑4；(3)向所得有机层中加入异辛酸钠；(4)过滤，将滤饼使用溶剂进行清洗，干燥得到噁拉戈利钠。其能够得到纯度较高的噁拉戈利钠盐。

USPTO Abstract

本发明公开了一种噁拉戈利钠纯化制备方法，包括：(1)将化合物I放入反应溶剂中；(2)向所述反应液中加入稀盐酸调节体系pH至3‑4；(3)向所得有机层中加入异辛酸钠；(4)过滤，将滤饼使用溶剂进行清洗，干燥得到噁拉戈利钠。其能够得到纯度较高的噁拉戈利钠盐。

Drugs covered by this patent

Patent Metadata

Patent number: CN113121451B
Jurisdiction: CN
Classification: —
Expires: 2022-11-18
Drug substance claim: No
Drug product claim: No
Assignee: Jiangsu Hai An Pharmaceutical 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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