CN Patent

CN114031601B — 一种盐酸兰地洛尔的制备方法

Assigned to Nanjing Huaguan Biotechnology Co ltd · Expires 2022-03-18 · 4y expired

What this patent protects

本发明涉及药物制备技术领域，尤其是一种盐酸兰地洛尔的制备方法，按照先后顺序包括以下步骤：将化合物1与化合物2、Lewis acid催化剂加入到溶剂中反应生成化合物3；化合物4与化合物3分两阶段反应生成化合物5。本发明制备方法操作简便，反应条件温和，易于纯化，减少三废，工业化成本降低。

USPTO Abstract

本发明涉及药物制备技术领域，尤其是一种盐酸兰地洛尔的制备方法，按照先后顺序包括以下步骤：将化合物1与化合物2、Lewis acid催化剂加入到溶剂中反应生成化合物3；化合物4与化合物3分两阶段反应生成化合物5。本发明制备方法操作简便，反应条件温和，易于纯化，减少三废，工业化成本降低。

Drugs covered by this patent

landiolol-hydrochloride (LANDIOLOL HYDROCHLORIDE)

Patent Metadata

Patent number: CN114031601B
Jurisdiction: CN
Classification: —
Expires: 2022-03-18
Drug substance claim: No
Drug product claim: No
Assignee: Nanjing Huaguan Biotechnology 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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