CN Patent

CN110256441A — 一种巴瑞克替尼的制备方法

Assigned to Haimen Baikang Pharmaceutical Co Ltd · Expires 2019-09-20 · 7y expired

What this patent protects

本发明涉及巴瑞克替尼的制备方法。以N‑叔丁氧羰基‑4‑哌啶酮为起始原料，和Wittig‑Horner试剂发生缩合反应，得到3‑(2‑氧亚甲基)氮杂环丁烷‑1‑甲酸叔丁酯，再和吡唑‑4‑硼酸频哪醇酯发生Michael加成反应。所得频哪醇酯中间体再与4‑氯苯并嘧啶衍生物在金属催化剂的作用下发生交叉偶联反应。最后，通过官能团转化将R 1 转化为氰基以及脱除保护等步骤即完成巴瑞克替尼的制备。

USPTO Abstract

本发明涉及巴瑞克替尼的制备方法。以N‑叔丁氧羰基‑4‑哌啶酮为起始原料，和Wittig‑Horner试剂发生缩合反应，得到3‑(2‑氧亚甲基)氮杂环丁烷‑1‑甲酸叔丁酯，再和吡唑‑4‑硼酸频哪醇酯发生Michael加成反应。所得频哪醇酯中间体再与4‑氯苯并嘧啶衍生物在金属催化剂的作用下发生交叉偶联反应。最后，通过官能团转化将R 1 转化为氰基以及脱除保护等步骤即完成巴瑞克替尼的制备。

Drugs covered by this patent

Patent Metadata

Patent number
CN110256441A
Jurisdiction
CN
Classification
—
Expires
2019-09-20
Drug substance claim
No
Drug product claim
No
Assignee
Haimen Baikang 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.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.