CN Patent

CN103833590A — 替加环素晶型及其制备方法

Assigned to CSPC Zhongqi Pharmaceutical Technology Shijiazhuang Co Ltd · Expires 2014-06-04 · 12y expired

What this patent protects

本发明提供了替加环素的M、N晶型及其制备方法。本发明的替加环素M晶型的粉末衍射图谱中2θ在8.8±0.2、10.1±0.2、20.4±0.2、21.8±0.2处有衍射峰。本发明提供了由替加环素N晶型制备替加环素M晶型的方法。本发明制备得到的M晶型适宜存放和运输，性质稳定，由该晶型所制备得到的粉针剂纯度高，杂质含量低，质量可控，符合药用要求。

USPTO Abstract

本发明提供了替加环素的M、N晶型及其制备方法。本发明的替加环素M晶型的粉末衍射图谱中2θ在8.8±0.2、10.1±0.2、20.4±0.2、21.8±0.2处有衍射峰。本发明提供了由替加环素N晶型制备替加环素M晶型的方法。本发明制备得到的M晶型适宜存放和运输，性质稳定，由该晶型所制备得到的粉针剂纯度高，杂质含量低，质量可控，符合药用要求。

Drugs covered by this patent

Tygacil (TIGECYCLINE) · Fresenius Kabi

Patent Metadata

Patent number: CN103833590A
Jurisdiction: CN
Classification: —
Expires: 2014-06-04
Drug substance claim: No
Drug product claim: No
Assignee: CSPC Zhongqi Pharmaceutical Technology Shijiazhuang 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.