CN Patent

CN114853666A — 一种制备高纯度吡仑帕奈中间体的纯化方法

Assigned to Beijing Wanquan Dezhong Medical Biological Technology Co Ltd · Expires 2022-08-05 · 4y expired

What this patent protects

本发明涉及一种吡仑帕奈中间体的精制方法，即2‑（5‑乙酰基‑2‑氧代‑1‑苯基‑1,2‑二氢吡啶‑3‑基）苄腈的精制。其特征是使用乙酸乙酯‑石油醚的混合溶液，通过重结晶的方法制备精制品。其相对于传统的提纯方法如柱层析、冻干等具有方便快捷，适合工业生产等优点。

USPTO Abstract

本发明涉及一种吡仑帕奈中间体的精制方法，即2‑（5‑乙酰基‑2‑氧代‑1‑苯基‑1,2‑二氢吡啶‑3‑基）苄腈的精制。其特征是使用乙酸乙酯‑石油醚的混合溶液，通过重结晶的方法制备精制品。其相对于传统的提纯方法如柱层析、冻干等具有方便快捷，适合工业生产等优点。

Drugs covered by this patent

Patent Metadata

Patent number
CN114853666A
Jurisdiction
CN
Classification
—
Expires
2022-08-05
Drug substance claim
No
Drug product claim
No
Assignee
Beijing Wanquan Dezhong Medical Biological Technology 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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