CN Patent

CN108948079A — 一种特地唑胺二铵盐及晶型与其制备方法

Assigned to Zhejiang Huahai Pharmaceutical Co Ltd · Expires 2018-12-07 · 7y expired

What this patent protects

本发明提供一种磷酸特地唑胺二铵盐及新晶型与其制备方法,与现有专利所公开的盐相比,磷酸特地唑胺二铵盐具有良好的稳定性,制备工艺较简便,具有提纯效果更好优势,磷酸特地唑胺二铵盐化合物,结构如下所示: 另外所述磷酸特地唑胺二铵盐晶型I,使用Cu‑Ka辐射,以2θ角度表示的X‑射线粉末衍射在10.1±0.2°,11.4±0.2°,16.7±0.2°,17.6±0.2°,20.1±0.2°,23.7±0.2°,26.7±0.2°,29.8±0.2°处有特征峰;所述晶型II在13.7±0.2°,14.4±0.2°,14.8±0.2°,15.2±0.2°,17.4±0…

USPTO Abstract

本发明提供一种磷酸特地唑胺二铵盐及新晶型与其制备方法,与现有专利所公开的盐相比,磷酸特地唑胺二铵盐具有良好的稳定性,制备工艺较简便,具有提纯效果更好优势,磷酸特地唑胺二铵盐化合物,结构如下所示: 另外所述磷酸特地唑胺二铵盐晶型I,使用Cu‑Ka辐射,以2θ角度表示的X‑射线粉末衍射在10.1±0.2°,11.4±0.2°,16.7±0.2°,17.6±0.2°,20.1±0.2°,23.7±0.2°,26.7±0.2°,29.8±0.2°处有特征峰;所述晶型II在13.7±0.2°,14.4±0.2°,14.8±0.2°,15.2±0.2°,17.4±0.2°,18.9±0.2°,20.1±0.2°,22.1±0.2°,24.4±0.2°,25.6±0.2°处有特征峰;所述晶型III在14.9±0.2°,25.3±0.2°处有特征峰。

Drugs covered by this patent

Patent Metadata

Patent number
CN108948079A
Jurisdiction
CN
Classification
Expires
2018-12-07
Drug substance claim
No
Drug product claim
No
Assignee
Zhejiang Huahai 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.

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.