CN Patent

CN113444105A — 一种Relugolix的制备方法

Assigned to Nanjing Hairun Pharmaceutical Co ltd · Expires 2021-09-28 · 5y expired

What this patent protects

本发明属于药物制备领域，涉及具有促性腺素释放激素(GnRH)拮抗作用的Relugolix或其盐的制备方法，与原研提供的Relugolix的制备方法相比，该方法将含苯胺结构的杂质及RS‑1等进行清除，合成工艺简单，反应收率高，避免氢化，更容易实现工业化生产，成品中含苯胺类警示结构杂质RS‑2未检出，且RS‑1及RS‑3均控制在0.01％以下。

USPTO Abstract

本发明属于药物制备领域，涉及具有促性腺素释放激素(GnRH)拮抗作用的Relugolix或其盐的制备方法，与原研提供的Relugolix的制备方法相比，该方法将含苯胺结构的杂质及RS‑1等进行清除，合成工艺简单，反应收率高，避免氢化，更容易实现工业化生产，成品中含苯胺类警示结构杂质RS‑2未检出，且RS‑1及RS‑3均控制在0.01％以下。

Drugs covered by this patent

Patent Metadata

Patent number
CN113444105A
Jurisdiction
CN
Classification
—
Expires
2021-09-28
Drug substance claim
No
Drug product claim
No
Assignee
Nanjing Hairun 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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