CN Patent

CN105218440A — 一种高纯瑞戈非尼的制备方法

Assigned to Henan University of Traditional Chinese Medicine HUTCM · Expires 2016-01-06 · 10y expired

What this patent protects

本发明公开了一种高纯度瑞戈非尼(化合物I)的改进制备方法。具体地，公开了具有如下结构的化合物3(瑞戈非尼中间体)的制备方法，进而由化合物3工业化制备具有极佳纯度的瑞戈非尼。所述方法中采用相转移催化剂，操作简便、环境友好、能够有效抑制杂质的生成，对设备要求低，适用于工业化大规模生产高纯度的瑞戈非尼。

USPTO Abstract

本发明公开了一种高纯度瑞戈非尼(化合物I)的改进制备方法。具体地，公开了具有如下结构的化合物3(瑞戈非尼中间体)的制备方法，进而由化合物3工业化制备具有极佳纯度的瑞戈非尼。所述方法中采用相转移催化剂，操作简便、环境友好、能够有效抑制杂质的生成，对设备要求低，适用于工业化大规模生产高纯度的瑞戈非尼。

Drugs covered by this patent

Patent Metadata

Patent number
CN105218440A
Jurisdiction
CN
Classification
—
Expires
2016-01-06
Drug substance claim
No
Drug product claim
No
Assignee
Henan University of Traditional Chinese Medicine HUTCM
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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