CN Patent

CN107098853A — 贝曲西班马来酸盐的制备方法

Assigned to Tianjin Kelun Pharmaceutical Research Co Ltd · Expires 2017-08-29 · 9y expired

What this patent protects

本发明涉及一种贝曲西班马来酸盐的制备方法，包括在成盐条件下将贝曲西班和马来酸在与水互溶的非质子溶剂和水的混合溶剂中反应生成贝曲西班马来酸盐，该制备方法避免了现有技术中杂质的产生，提高贝曲西班马来酸盐产品的纯度和/或收率，产品的收率达60%以上，纯度达到99.6%以上。

USPTO Abstract

本发明涉及一种贝曲西班马来酸盐的制备方法，包括在成盐条件下将贝曲西班和马来酸在与水互溶的非质子溶剂和水的混合溶剂中反应生成贝曲西班马来酸盐，该制备方法避免了现有技术中杂质的产生，提高贝曲西班马来酸盐产品的纯度和/或收率，产品的收率达60%以上，纯度达到99.6%以上。

Drugs covered by this patent

Patent Metadata

Patent number
CN107098853A
Jurisdiction
CN
Classification
—
Expires
2017-08-29
Drug substance claim
No
Drug product claim
No
Assignee
Tianjin Kelun Pharmaceutical Research 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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