CN110799494A - 一种无溶剂制备左乙拉西坦的方法 - Google Patents

一种无溶剂制备左乙拉西坦的方法 Download PDF

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Publication number
CN110799494A
CN110799494A CN201780092609.8A CN201780092609A CN110799494A CN 110799494 A CN110799494 A CN 110799494A CN 201780092609 A CN201780092609 A CN 201780092609A CN 110799494 A CN110799494 A CN 110799494A
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Prior art keywords
ethyl
reaction
oxo
dimethylbutyl
levetiracetam
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CN201780092609.8A
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CN110799494B (zh
Inventor
潘洪杰
张文灵
王鹏
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Zhejiang Huahai Pharmaceutical Co Ltd
Zhejiang Huahai Zhicheng Pharmaceutical Co Ltd
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Zhejiang Huahai Pharmaceutical Co Ltd
Zhejiang Huahai Zhicheng Pharmaceutical Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D207/00Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D207/00Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D207/18Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
    • C07D207/22Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D207/24Oxygen or sulfur atoms
    • C07D207/262-Pyrrolidones
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D207/00Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D207/18Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
    • C07D207/22Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D207/24Oxygen or sulfur atoms
    • C07D207/262-Pyrrolidones
    • C07D207/2632-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms
    • C07D207/272-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms with substituted hydrocarbon radicals directly attached to the ring nitrogen atom
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyrrole Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

涉及一种制备左乙拉西坦的方法,其特征在于,在无溶剂条件下,以(S)‑α‑乙基‑2‑氧代‑1‑吡咯烷乙酸酯为原料,通过与液氨进行氨解反应得到左乙拉西坦。所提供的方法三废低,收率和纯度好,符合工业化生产的要求。

Description

PCT国内申请,说明书已公开。

Claims (7)

  1. PCT国内申请,权利要求书已公开。
CN201780092609.8A 2017-08-08 2017-08-08 一种无溶剂制备左乙拉西坦的方法 Active CN110799494B (zh)

Applications Claiming Priority (1)

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PCT/CN2017/096408 WO2019028669A1 (zh) 2017-08-08 2017-08-08 一种无溶剂制备左乙拉西坦的方法

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CN110799494A true CN110799494A (zh) 2020-02-14
CN110799494B CN110799494B (zh) 2023-06-06

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WO (1) WO2019028669A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11384050B1 (en) 2021-02-03 2022-07-12 Vitaworks Ip, Llc Method for preparing levetiracetam and intermediates thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006095362A1 (en) * 2005-03-10 2006-09-14 Rubamin Limited Process for preparing levetiracetam
EP1419144B1 (en) * 2001-08-10 2008-10-08 UCB Pharma S.A. Oxopyrrolidine compounds, preparation of said compounds and their use in the manufacturing of levetiracetam and analogues
CN101511786A (zh) * 2006-07-25 2009-08-19 Zach系统股份公司 制备左乙拉西坦的方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1419144B1 (en) * 2001-08-10 2008-10-08 UCB Pharma S.A. Oxopyrrolidine compounds, preparation of said compounds and their use in the manufacturing of levetiracetam and analogues
WO2006095362A1 (en) * 2005-03-10 2006-09-14 Rubamin Limited Process for preparing levetiracetam
CN101511786A (zh) * 2006-07-25 2009-08-19 Zach系统股份公司 制备左乙拉西坦的方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
刘跃金等: "左乙拉西坦及其衍生物的合成", 《中国新药杂志》 *
张铸勇主编: "《精细有机合成单元反应(第二版)》", 31 August 2003, 华东理工大学出版社 *
程能林编著: "《溶剂手册(第二版)》", 30 September 1994, 化学工业出版社 *

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Publication number Publication date
WO2019028669A1 (zh) 2019-02-14
CN110799494B (zh) 2023-06-06

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