CN Patent

CN1956961A — 4－氧代喹啉化合物的稳定晶体

Assigned to Japan Tobacco Inc · Expires 2007-05-02 · 19y expired

What this patent protects

本发明提供6－(3－氯－2－氟苄基)－1－[(S)－1－羟甲基－2－甲基丙基]－7－甲氧基－4－氧代－1，4－二氢喹啉－3－羧酸的晶体，如通过粉末X－射线衍射学所测量，其显示在衍射角2θ(°)下具有特征衍射峰的特定粉末X－射线衍射模式。本发明的晶体在物理和化学稳定性上是优越的。

USPTO Abstract

本发明提供6－(3－氯－2－氟苄基)－1－[(S)－1－羟甲基－2－甲基丙基]－7－甲氧基－4－氧代－1，4－二氢喹啉－3－羧酸的晶体，如通过粉末X－射线衍射学所测量，其显示在衍射角2θ(°)下具有特征衍射峰的特定粉末X－射线衍射模式。本发明的晶体在物理和化学稳定性上是优越的。

Drugs covered by this patent

Patent Metadata

Patent number
CN1956961A
Jurisdiction
CN
Classification
—
Expires
2007-05-02
Drug substance claim
No
Drug product claim
No
Assignee
Japan Tobacco Inc
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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