CN Patent

CN113773194B — 作为降糖药合成原料的5-溴-2-氯-苯甲酸的制备方法

Assigned to Zhejiang Ausun Pharmaceutical Co Ltd · Expires 2023-05-02 · 3y expired

What this patent protects

本发明涉及作为降糖药合成原料的5‑溴‑2‑氯‑苯甲酸的制备方法及其应用。具体而言，本发明以5‑溴‑2‑氨基苯甲酸衍生物为起始原料，经重氮化氯化和水解两步反应制备得到5‑溴‑2‑氯‑苯甲酸，所得产物的异构体杂质少，反应收率高，纯度好，成本低，适合工业化生产。本发明还涉及5‑溴‑2‑氨基‑苯甲酸在制备抗糖尿病药物中的应用。

USPTO Abstract

本发明涉及作为降糖药合成原料的5‑溴‑2‑氯‑苯甲酸的制备方法及其应用。具体而言，本发明以5‑溴‑2‑氨基苯甲酸衍生物为起始原料，经重氮化氯化和水解两步反应制备得到5‑溴‑2‑氯‑苯甲酸，所得产物的异构体杂质少，反应收率高，纯度好，成本低，适合工业化生产。本发明还涉及5‑溴‑2‑氨基‑苯甲酸在制备抗糖尿病药物中的应用。

Drugs covered by this patent

Patent Metadata

Patent number
CN113773194B
Jurisdiction
CN
Classification
—
Expires
2023-05-02
Drug substance claim
No
Drug product claim
No
Assignee
Zhejiang Ausun 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.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.