CN Patent

CN115304619A — 一种卢比替定的晶型及其制备方法

Assigned to Shanghai Haoyuan Chemexpress Co ltd · Expires 2022-11-08 · 4y expired

What this patent protects

本发明所述卢比替定晶型I在使用辐射源为Cu‑Kα的X射线粉末衍射图中,在衍射角2θ为4.55±0.2°、6.16±0.2°、7.61±0.2°、9.17±0.2°、9.54±0.2°和9.89±0.2°处有特征吸收峰;本发明还提供的卢比替定新晶型II、III、IV和V,晶型I‑V具有纯度高、稳定性好、溶解度较好等优点;且并不存在现有技术过滤难、带静电的问题,晶型制备方法简便,溶剂价廉易得,结晶条件温和,适合工业化大生产。

USPTO Abstract

本发明所述卢比替定晶型I在使用辐射源为Cu‑Kα的X射线粉末衍射图中,在衍射角2θ为4.55±0.2°、6.16±0.2°、7.61±0.2°、9.17±0.2°、9.54±0.2°和9.89±0.2°处有特征吸收峰;本发明还提供的卢比替定新晶型II、III、IV和V,晶型I‑V具有纯度高、稳定性好、溶解度较好等优点;且并不存在现有技术过滤难、带静电的问题,晶型制备方法简便,溶剂价廉易得,结晶条件温和,适合工业化大生产。

Drugs covered by this patent

Patent Metadata

Patent number
CN115304619A
Jurisdiction
CN
Classification
Expires
2022-11-08
Drug substance claim
No
Drug product claim
No
Assignee
Shanghai Haoyuan Chemexpress 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.

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.