CN Patent

CN113717111A — 喹唑啉类化合物的晶型及其制备方法

Assigned to Crystal Pharmatech Co Ltd · Expires 2021-11-30 · 4y expired

What this patent protects

本发明涉及一种(2E)‑N‑[4‑[(3‑氯‑4‑氟苯基)氨基]‑7‑甲氧基‑6‑喹唑啉基]‑4‑(1‑哌啶基)‑2‑丁烯酰胺的晶型C及其制备方法和含有其的药物,所述晶型C为无水物,使用Cu‑Kα辐射,晶型C的X‑射线粉末衍射图在衍射角2θ为5.6°±0.2°,10.5°±0.2°,12.8°±0.2°处有特征峰。本发明的晶型C是无水物,相比现有的溶剂化物,其在药物开发中具有明显优势,此外,本发明的晶型C在保持好的稳定性的前提下,溶解度相比现有的溶剂化合物有显著提高。

USPTO Abstract

本发明涉及一种(2E)‑N‑[4‑[(3‑氯‑4‑氟苯基)氨基]‑7‑甲氧基‑6‑喹唑啉基]‑4‑(1‑哌啶基)‑2‑丁烯酰胺的晶型C及其制备方法和含有其的药物,所述晶型C为无水物,使用Cu‑Kα辐射,晶型C的X‑射线粉末衍射图在衍射角2θ为5.6°±0.2°,10.5°±0.2°,12.8°±0.2°处有特征峰。本发明的晶型C是无水物,相比现有的溶剂化物,其在药物开发中具有明显优势,此外,本发明的晶型C在保持好的稳定性的前提下,溶解度相比现有的溶剂化合物有显著提高。

Drugs covered by this patent

Patent Metadata

Patent number
CN113717111A
Jurisdiction
CN
Classification
Expires
2021-11-30
Drug substance claim
No
Drug product claim
No
Assignee
Crystal Pharmatech 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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