CN Patent

CN104098548B — 一种Delafloxacin的精制方法

Assigned to Shanghai Institute of Pharmaceutical Industry · Expires 2017-07-18 · 9y expired

What this patent protects

本发明涉及delafloxacin的提纯方法技术领域。本发明所述的delafloxacin精制方法，是将delafloxacin加至极性非质子溶剂中，加热，搅拌至溶解，加入蒸馏水，逐渐降温析晶即得到高纯度的delafloxacin。现有合成方法制得的delafloxacin需要进一步精制，简单的柱层析方式制备必然会加大规模化大生产的难度，同时会极大地增加制备成本，本发明可以有效地去除杂质，使化合物1delafloxacin达到较高纯度（＞99.0%），并满足后续制备的需求。

USPTO Abstract

本发明涉及delafloxacin的提纯方法技术领域。本发明所述的delafloxacin精制方法，是将delafloxacin加至极性非质子溶剂中，加热，搅拌至溶解，加入蒸馏水，逐渐降温析晶即得到高纯度的delafloxacin。现有合成方法制得的delafloxacin需要进一步精制，简单的柱层析方式制备必然会加大规模化大生产的难度，同时会极大地增加制备成本，本发明可以有效地去除杂质，使化合物1delafloxacin达到较高纯度（＞99.0%），并满足后续制备的需求。

Drugs covered by this patent

Patent Metadata

Patent number
CN104098548B
Jurisdiction
CN
Classification
—
Expires
2017-07-18
Drug substance claim
No
Drug product claim
No
Assignee
Shanghai Institute of Pharmaceutical Industry
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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