CN Patent

CN108658831B — 2-氧代-1-吡咯烷衍生物或其盐的制备方法

Assigned to Jiangsu Hansoh Pharmaceutical Group Co Ltd · Expires 2021-11-05 · 5y expired

What this patent protects

本发明公开2‑氧代‑1‑吡咯烷衍生物或其盐的制备方法，具体涉及一种制备式(Ⅰ)所示的2‑氧代‑1‑吡咯烷衍生物的方法，式中的取代基如说明书中所定义。本发明的制备方法简单可行、收率高、适合工业化生产。

USPTO Abstract

本发明公开2‑氧代‑1‑吡咯烷衍生物或其盐的制备方法，具体涉及一种制备式(Ⅰ)所示的2‑氧代‑1‑吡咯烷衍生物的方法，式中的取代基如说明书中所定义。本发明的制备方法简单可行、收率高、适合工业化生产。

Drugs covered by this patent

Patent Metadata

Patent number
CN108658831B
Jurisdiction
CN
Classification
—
Expires
2021-11-05
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.

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