CN Patent

CN114835650A — 噁拉戈利中间体的盐、晶体及其制备方法和应用

Assigned to Shanghai Mo'aohao Pharmaceutical Technology Co ltd · Expires 2022-08-02 · 4y expired

What this patent protects

如下式的噁拉戈利中间体羟基萘甲酸盐有99.0％以上的色谱纯度，单杂小于0.2％；所得的盐经过游离后得到的中间体有99.5％以上的色谱纯度，单杂小于0.1％，符合药用要求。本发明实施例提供的噁拉戈利中间体1的羟基萘甲酸盐均为结晶形式，稳定性大大提高，解决了噁拉戈利中间体的无定形物易降解问题，保证了中间体在储存和运输中的质量。

USPTO Abstract

如下式的噁拉戈利中间体羟基萘甲酸盐有99.0％以上的色谱纯度，单杂小于0.2％；所得的盐经过游离后得到的中间体有99.5％以上的色谱纯度，单杂小于0.1％，符合药用要求。本发明实施例提供的噁拉戈利中间体1的羟基萘甲酸盐均为结晶形式，稳定性大大提高，解决了噁拉戈利中间体的无定形物易降解问题，保证了中间体在储存和运输中的质量。

Drugs covered by this patent

Patent Metadata

Patent number: CN114835650A
Jurisdiction: CN
Classification: —
Expires: 2022-08-02
Drug substance claim: No
Drug product claim: No
Assignee: Shanghai Mo'aohao 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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