CN Patent

CN114174270B — 吡嗪-2(1h)-酮类化合物的a晶型和b晶型及其制备方法

Assigned to Zhangzhou Pientzehuang Pharmaceutical Co Ltd · Expires 2023-06-06 · 3y expired

What this patent protects

一种吡嗪‑2(1H)‑酮类化合物的晶型及其制备方法，具体公开了式(ⅠI)化合物及其晶型的制备方法。

USPTO Abstract

一种吡嗪‑2(1H)‑酮类化合物的晶型及其制备方法，具体公开了式(ⅠI)化合物及其晶型的制备方法。

Drugs covered by this patent

Patent Metadata

Patent number
CN114174270B
Jurisdiction
CN
Classification
—
Expires
2023-06-06
Drug substance claim
No
Drug product claim
No
Assignee
Zhangzhou Pientzehuang Pharmaceutical 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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