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TR200503397T1 - Levetirasetam'ın yeni kristal formları. - Google Patents

Levetirasetam'ın yeni kristal formları.

Info

Publication number
TR200503397T1
TR200503397T1 TR2005/03397T TR200503397T TR200503397T1 TR 200503397 T1 TR200503397 T1 TR 200503397T1 TR 2005/03397 T TR2005/03397 T TR 2005/03397T TR 200503397 T TR200503397 T TR 200503397T TR 200503397 T1 TR200503397 T1 TR 200503397T1
Authority
TR
Turkey
Prior art keywords
levetiracetam
crystal forms
new crystal
new
preparation
Prior art date
Application number
TR2005/03397T
Other languages
English (en)
Inventor
Kura Rathnakar Reddy
Bandi Parthasaradhi Reddy
Rapolu Raji Reddy
Dasari Muralidhara Reddy
Kesireddy Subash Chander Reddy
Original Assignee
Hetero Drugs Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hetero Drugs Limited filed Critical Hetero Drugs Limited
Publication of TR200503397T1 publication Critical patent/TR200503397T1/tr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02—Heterocyclic 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
    • C07D207/18—Heterocyclic 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
    • C07D207/22—Heterocyclic 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
    • C07D207/24—Oxygen or sulfur atoms
    • C07D207/26—2-Pyrrolidones
    • C07D207/263—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms
    • C07D207/27—2-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

Landscapes

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

Abstract

Bir buluş levetirasetamın yeni kristal formları, bunların hazırlanmasındaki usuller ve bunlan içeren farmasötik bileşimlerle ilgilidir.
TR2005/03397T 2003-03-18 2003-03-18 Levetirasetam'ın yeni kristal formları. TR200503397T1 (tr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IN2003/000058 WO2004083180A1 (en) 2003-03-18 2003-03-18 Novel crystalline forms of levetiracetam

Publications (1)

Publication Number Publication Date
TR200503397T1 true TR200503397T1 (tr) 2007-03-21

Family

ID=33017814

Family Applications (1)

Application Number Title Priority Date Filing Date
TR2005/03397T TR200503397T1 (tr) 2003-03-18 2003-03-18 Levetirasetam'ın yeni kristal formları.

Country Status (4)

Country Link
US (1) US20050143445A1 (tr)
AU (1) AU2003217438A1 (tr)
TR (1) TR200503397T1 (tr)
WO (1) WO2004083180A1 (tr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602006003617D1 (de) * 2006-01-24 2008-12-24 Teva Pharma Zusammensetzungen enthaltend Levetiracetam und Verfahren zu deren Herstellung.
WO2009050735A1 (en) * 2007-10-15 2009-04-23 Lupin Limited A novel polymorph of levetiracetam and a process for its preparation
US20100172979A1 (en) * 2008-12-24 2010-07-08 Zhongshui Yu Controlled-release formulations
US20100159009A1 (en) * 2008-12-24 2010-06-24 Zhongshui Yu Controlled-release formulations
CN103432070B (zh) * 2013-09-13 2015-10-07 四川鼎诺泰宸科技有限公司 左乙拉西坦注射液和制法
CN107913247A (zh) * 2016-10-10 2018-04-17 北京阜康仁生物制药科技有限公司 一种左乙拉西坦注射用制剂及其制备方法
US12528770B2 (en) 2023-06-12 2026-01-20 Suzhou Brighthope Pharmatech Co., Ltd. Process for the production of levetiracetam and intermediates thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8412357D0 (en) * 1984-05-15 1984-06-20 Ucb Sa Pharmaceutical composition
JP4249415B2 (ja) * 1999-12-01 2009-04-02 ユセベ，ソシエテ アノニム Ｃｎｓ疾患の治療のためのピロリジンアセトアミド誘導体単体又は組み合わせ物
GB0004297D0 (en) * 2000-02-23 2000-04-12 Ucb Sa 2-oxo-1 pyrrolidine derivatives process for preparing them and their uses

Also Published As

Publication number Publication date
AU2003217438A1 (en) 2004-10-11
WO2004083180A1 (en) 2004-09-30
US20050143445A1 (en) 2005-06-30

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