CN Patent

CN108017612B — 一种坎格列净中间体的制备方法

Assigned to Nantong Changyou Pharmaceutical Science & Technology Co ltd · Expires 2020-06-09 · 6y expired

What this patent protects

本发明公开了一种坎格列净中间体的制备方法，以取代溴苯为起始原料，首先与联硼酸频那醇酯制备成硼化物，再经Suzuki偶联反应、付克酰基化反应及还原反应制备得到。本发明的优点是：通过Suzuki偶联反应制备中间产物CZ‑2，条件温和，易于操作和控制，产品收率及纯度好，再经付克酰基化反应引入芳甲基，构建出主链，路线收率高，工艺条件易于控制，适合于大规模工业化生产。

USPTO Abstract

本发明公开了一种坎格列净中间体的制备方法，以取代溴苯为起始原料，首先与联硼酸频那醇酯制备成硼化物，再经Suzuki偶联反应、付克酰基化反应及还原反应制备得到。本发明的优点是：通过Suzuki偶联反应制备中间产物CZ‑2，条件温和，易于操作和控制，产品收率及纯度好，再经付克酰基化反应引入芳甲基，构建出主链，路线收率高，工艺条件易于控制，适合于大规模工业化生产。

Drugs covered by this patent

Patent Metadata

Patent number
CN108017612B
Jurisdiction
CN
Classification
—
Expires
2020-06-09
Drug substance claim
No
Drug product claim
No
Assignee
Nantong Changyou Pharmaceutical Science & 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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