CN Patent

CN105777743A — 一种吡唑并[3,4-b]吡啶类化合物中间体的制备方法和应用

Assigned to SHANGHAI ACEBRIGHT PHARMACEUTICALS GROUP Co Ltd · Expires 2016-07-20 · 10y expired

What this patent protects

本发明提供了一种吡唑并[3,4-b]吡啶类化合物中间体的制备方法和应用。具体地，所述中间体结构如式IV所示，式中基团的定义如说明书和权利要求书所示，该中间体可由式I化合物制得，可用于制备利奥西呱。本发明所提供的方法原料价廉易得，总收率高，反应条件温和，操作简单，易于纯化，适合工业化大生产。

USPTO Abstract

本发明提供了一种吡唑并[3,4-b]吡啶类化合物中间体的制备方法和应用。具体地，所述中间体结构如式IV所示，式中基团的定义如说明书和权利要求书所示，该中间体可由式I化合物制得，可用于制备利奥西呱。本发明所提供的方法原料价廉易得，总收率高，反应条件温和，操作简单，易于纯化，适合工业化大生产。

Drugs covered by this patent

Patent Metadata

Patent number
CN105777743A
Jurisdiction
CN
Classification
—
Expires
2016-07-20
Drug substance claim
No
Drug product claim
No
Assignee
SHANGHAI ACEBRIGHT PHARMACEUTICALS 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.

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