CN Patent

CN102516225A — 新型医药中间体(r)-3-苯二甲酰亚胺哌啶盐酸盐的合成

Assigned to Wisdom Pharmaceutical Co Ltd · Expires 2012-06-27 · 14y expired

What this patent protects

本发明涉及一种新型医药关键中间体(R)-3-苯二甲酰亚胺哌啶盐酸盐的合成工艺。(R)-N-苄基-3-氨基哌啶烷和邻苯二甲酸酐在酸作用下进行缩合，产物盐酸酸化后得到(R)-N-苄基-3-苯二甲酰亚胺哌啶盐酸盐,后者直接常规氢化即得所需的(R)-3-苯二甲酰亚胺哌啶盐酸盐。本发明各步的原材料价格较低、各步骤单元操作简单、设备要求低、安全性高，后处理及纯化操作简单，适合工业化大生产。

USPTO Abstract

本发明涉及一种新型医药关键中间体(R)-3-苯二甲酰亚胺哌啶盐酸盐的合成工艺。(R)-N-苄基-3-氨基哌啶烷和邻苯二甲酸酐在酸作用下进行缩合，产物盐酸酸化后得到(R)-N-苄基-3-苯二甲酰亚胺哌啶盐酸盐,后者直接常规氢化即得所需的(R)-3-苯二甲酰亚胺哌啶盐酸盐。本发明各步的原材料价格较低、各步骤单元操作简单、设备要求低、安全性高，后处理及纯化操作简单，适合工业化大生产。

Drugs covered by this patent

Patent Metadata

Patent number
CN102516225A
Jurisdiction
CN
Classification
—
Expires
2012-06-27
Drug substance claim
No
Drug product claim
No
Assignee
Wisdom 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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