CN Patent

CN107445879B — 拉曲替尼中间体的制备方法

Assigned to SUZHOU LIXIN PHARMACEUTICAL CO Ltd · Expires 2020-07-24 · 6y expired

What this patent protects

本发明揭示了一种拉曲替尼中间体(R)‑2‑(2,5‑二氟苯基)四氢吡咯烷(I)的制备方法,其包括如下步骤:以手性诱导试剂(7aR,10R,12S)‑10‑(1‑苯并三氮唑基)‑12‑苯基‑7a,8,9,10‑四氢‑12H‑萘酚[1,2‑e]吡咯并[2,1‑b][1,3]噁嗪和格氏试剂2,5‑二氟苯基溴化镁为原料,经过取代、还原和脱苄基反应制得拉曲替尼中间体(R)‑2‑(2,5‑二氟苯基)四氢吡咯烷。与现有技术相比,该制备方法工艺简洁、条件温和、副反应少和成本较低,适应工业化生产,可促进该原料药的经济技术的发展。

USPTO Abstract

本发明揭示了一种拉曲替尼中间体(R)‑2‑(2,5‑二氟苯基)四氢吡咯烷(I)的制备方法,其包括如下步骤:以手性诱导试剂(7aR,10R,12S)‑10‑(1‑苯并三氮唑基)‑12‑苯基‑7a,8,9,10‑四氢‑12H‑萘酚[1,2‑e]吡咯并[2,1‑b][1,3]噁嗪和格氏试剂2,5‑二氟苯基溴化镁为原料,经过取代、还原和脱苄基反应制得拉曲替尼中间体(R)‑2‑(2,5‑二氟苯基)四氢吡咯烷。与现有技术相比,该制备方法工艺简洁、条件温和、副反应少和成本较低,适应工业化生产,可促进该原料药的经济技术的发展。

Drugs covered by this patent

Patent Metadata

Patent number
CN107445879B
Jurisdiction
CN
Classification
Expires
2020-07-24
Drug substance claim
No
Drug product claim
No
Assignee
SUZHOU LIXIN 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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