CN Patent

CN109776405A — 一种丁酸氯维地平杂质的制备方法

Assigned to CHONGQING ANGE LONGXIANG PHARMACEUTICAL Co Ltd · Expires 2019-05-21 · 7y expired

What this patent protects

本发明提供一种丁酸氯维地平杂质的制备方法，以丁酸氯维地平为原料，在硫酸高铈和强酸的作用下得到丁酸氯维地平杂质。本发明操作简便、产物纯度较高，得到的目标产物可用于药物质量研究，具有良好的应用前景。

USPTO Abstract

本发明提供一种丁酸氯维地平杂质的制备方法，以丁酸氯维地平为原料，在硫酸高铈和强酸的作用下得到丁酸氯维地平杂质。本发明操作简便、产物纯度较高，得到的目标产物可用于药物质量研究，具有良好的应用前景。

Drugs covered by this patent

Patent Metadata

Patent number
CN109776405A
Jurisdiction
CN
Classification
—
Expires
2019-05-21
Drug substance claim
No
Drug product claim
No
Assignee
CHONGQING ANGE LONGXIANG 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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