CN Patent

CN113412255B — 制备4-氨基-5-甲基吡啶酮的方法

Assigned to Bayer AG · Expires 2024-07-02 · 2y expired

What this patent protects

本发明涉及一种制备方法中间体式(I)的4‑氨基‑5‑甲基吡啶酮的方法，其特征在于使中间体式(III)的4‑羟基‑5‑甲基‑1H‑吡啶‑2‑酮与氨在添加溴化铵盐的情况下在高压釜中反应。

USPTO Abstract

本发明涉及一种制备方法中间体式(I)的4‑氨基‑5‑甲基吡啶酮的方法，其特征在于使中间体式(III)的4‑羟基‑5‑甲基‑1H‑吡啶‑2‑酮与氨在添加溴化铵盐的情况下在高压釜中反应。

Drugs covered by this patent

Patent Metadata

Patent number
CN113412255B
Jurisdiction
CN
Classification
—
Expires
2024-07-02
Drug substance claim
No
Drug product claim
No
Assignee
Bayer AG
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.