CN Patent

CN107721896A — 一种布瓦西坦的中间体的制备方法

Assigned to XINBEIJIANG PHARMACEUTICAL CO Ltd LIZHU GROUP · Expires 2018-02-23 · 8y expired

What this patent protects

本发明提供一种制备布瓦西坦中间体的方法,所述方法包括以下步骤:(1)向反应体系加入溶剂、化合物4和Pd/C催化剂;(2)将反应体系置于氢气气氛下,反应2‑3小时;(3)终止反应,过滤,减压蒸馏得到布瓦西坦中间体,即式3所示化合物。本发明方法反应条件温和,制备得到的布瓦西坦中间体化合物价格低,为布瓦西坦的制备提供了价格低廉的中间体,适于工业化大生产。

USPTO Abstract

本发明提供一种制备布瓦西坦中间体的方法,所述方法包括以下步骤:(1)向反应体系加入溶剂、化合物4和Pd/C催化剂;(2)将反应体系置于氢气气氛下,反应2‑3小时;(3)终止反应,过滤,减压蒸馏得到布瓦西坦中间体,即式3所示化合物。本发明方法反应条件温和,制备得到的布瓦西坦中间体化合物价格低,为布瓦西坦的制备提供了价格低廉的中间体,适于工业化大生产。

Drugs covered by this patent

Patent Metadata

Patent number
CN107721896A
Jurisdiction
CN
Classification
Expires
2018-02-23
Drug substance claim
No
Drug product claim
No
Assignee
XINBEIJIANG PHARMACEUTICAL CO Ltd LIZHU GROUP
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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