CN Patent

CN107365305A — 一种依匹哌唑新晶型及其制备方法

Assigned to Shanghai Aobo Bio Pharmaceutical Technology Co Ltd · Expires 2017-11-21 · 8y expired

What this patent protects

本发明涉及一种依匹哌唑新晶型及其制备方法。所述的依匹哌唑新晶型命名为晶型I,使用Cu‑Kα辐射检测的X射线粉末衍射图谱中,在约9.1±0.2°,15.2±0.2°,15.7±0.2°,17.6±0.2°,18.1±0.2°,24.4±0.2°(2θ)处有特征峰。本发明还提供一种制备依匹哌唑游离碱新晶型I的方法,简便、重现性好,所得依匹哌唑游离碱新晶型I纯度高、稳定性好,适于工业化生产。

USPTO Abstract

本发明涉及一种依匹哌唑新晶型及其制备方法。所述的依匹哌唑新晶型命名为晶型I,使用Cu‑Kα辐射检测的X射线粉末衍射图谱中,在约9.1±0.2°,15.2±0.2°,15.7±0.2°,17.6±0.2°,18.1±0.2°,24.4±0.2°(2θ)处有特征峰。本发明还提供一种制备依匹哌唑游离碱新晶型I的方法,简便、重现性好,所得依匹哌唑游离碱新晶型I纯度高、稳定性好,适于工业化生产。

Drugs covered by this patent

Patent Metadata

Patent number
CN107365305A
Jurisdiction
CN
Classification
Expires
2017-11-21
Drug substance claim
No
Drug product claim
No
Assignee
Shanghai Aobo Bio Pharmaceutical Technology 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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