CN Patent

CN111689897B — 一种高纯度甲磺酸乐伐替尼晶型c的制备方法

Assigned to Shandong Anxin Pharmaceutical Co ltd · Expires 2024-02-06 · 2y expired

What this patent protects

本发明属于医药化工技术领域，具体涉及一种甲磺酸乐伐替尼晶型C的制备方法，避免了高温、酸做溶剂等条件，大大降低了杂质的含量，具有较高的纯度和较好的收率，其纯度在99％以上，收率在95％以上，且其方法工艺简单，操作方便，条件温和，不需要特殊的反应条件，对环境友好，适合工业化生产。

USPTO Abstract

本发明属于医药化工技术领域，具体涉及一种甲磺酸乐伐替尼晶型C的制备方法，避免了高温、酸做溶剂等条件，大大降低了杂质的含量，具有较高的纯度和较好的收率，其纯度在99％以上，收率在95％以上，且其方法工艺简单，操作方便，条件温和，不需要特殊的反应条件，对环境友好，适合工业化生产。

Drugs covered by this patent

Patent Metadata

Patent number
CN111689897B
Jurisdiction
CN
Classification
—
Expires
2024-02-06
Drug substance claim
No
Drug product claim
No
Assignee
Shandong Anxin Pharmaceutical 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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