CN Patent

CN112479983B — 乌美溴铵中间体及其制备方法

Assigned to Jiangsu Hansoh Pharmaceutical Group Co Ltd · Expires 2022-07-12 · 4y expired

What this patent protects

本发明涉及一种乌美溴铵中间体及其制备方法，包括将异哌啶酸经酯化、缩合、取代、环合和加成等操作后得到目标化合物。与现有制备方法相比，本发明所得式VII化合物收率高，杂质1含量显著降低，为工业化制备高纯度的乌美溴铵提供了工艺保障，从而保障了药品的用药安全。

USPTO Abstract

本发明涉及一种乌美溴铵中间体及其制备方法，包括将异哌啶酸经酯化、缩合、取代、环合和加成等操作后得到目标化合物。与现有制备方法相比，本发明所得式VII化合物收率高，杂质1含量显著降低，为工业化制备高纯度的乌美溴铵提供了工艺保障，从而保障了药品的用药安全。

Drugs covered by this patent

Patent Metadata

Patent number
CN112479983B
Jurisdiction
CN
Classification
—
Expires
2022-07-12
Drug substance claim
No
Drug product claim
No
Assignee
Jiangsu Hansoh Pharmaceutical Group 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.