NO20052378L - Pre-organiserte trisykliske integraseinhibitorforbindelser - Google Patents

Pre-organiserte trisykliske integraseinhibitorforbindelser

Info

Publication number
NO20052378L
NO20052378L NO20052378A NO20052378A NO20052378L NO 20052378 L NO20052378 L NO 20052378L NO 20052378 A NO20052378 A NO 20052378A NO 20052378 A NO20052378 A NO 20052378A NO 20052378 L NO20052378 L NO 20052378L
Authority
NO
Norway
Prior art keywords
inhibitor compounds
integrase inhibitor
compounds
aryl
organized
Prior art date
Application number
NO20052378A
Other languages
English (en)
Norwegian (no)
Other versions
NO20052378D0 (no
Inventor
Choung U Kim
James M Chen
Xiaowu Chen
Maria Fardis
Haolun Jin
Laura N Schacherer
Original Assignee
Gilead Sciences Inc
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 Gilead Sciences Inc filed Critical Gilead Sciences Inc
Publication of NO20052378D0 publication Critical patent/NO20052378D0/no
Publication of NO20052378L publication Critical patent/NO20052378L/no

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
    • C07D207/30—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 two double bonds between ring members or between ring members and non-ring members
    • C07D207/34—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 two double bonds between ring members or between ring members and non-ring members 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
    • C07D207/36—Oxygen or sulfur atoms
    • C07D207/40—2,5-Pyrrolidine-diones
    • C07D207/404—2,5-Pyrrolidine-diones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms, e.g. succinimide
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12—Antivirals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12—Antivirals
    • A61P31/14—Antivirals for RNA viruses
    • A61P31/18—Antivirals for RNA viruses for HIV
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
    • C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
    • C07D487/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D498/12—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains three hetero rings
    • C07D498/20—Spiro-condensed systems

Landscapes

  • Organic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Medicinal Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Virology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • General Chemical & Material Sciences (AREA)
  • Communicable Diseases (AREA)
  • Oncology (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • AIDS & HIV (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Molecular Biology (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
NO20052378A 2002-10-16 2005-05-13 Pre-organiserte trisykliske integraseinhibitorforbindelser NO20052378L (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US41896302P 2002-10-16 2002-10-16
US47878303P 2003-06-16 2003-06-16
PCT/US2003/032666 WO2004035576A2 (en) 2002-10-16 2003-10-16 Pre-organized tricyclic integrase inhibitor compounds

Publications (2)

Publication Number Publication Date
NO20052378D0 NO20052378D0 (no) 2005-05-13
NO20052378L true NO20052378L (no) 2005-07-18

Family

ID=32110203

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20052378A NO20052378L (no) 2002-10-16 2005-05-13 Pre-organiserte trisykliske integraseinhibitorforbindelser

Country Status (19)

Country Link
US (3) US20040157804A1 (pl)
EP (1) EP1558613A2 (pl)
JP (1) JP2006514099A (pl)
KR (1) KR20050087787A (pl)
CN (1) CN100374438C (pl)
AP (1) AP1858A (pl)
AU (2) AU2003301439A1 (pl)
BR (1) BR0315405A (pl)
CA (1) CA2501881A1 (pl)
EA (1) EA011399B1 (pl)
HR (1) HRP20050431A2 (pl)
IS (1) IS7845A (pl)
MX (1) MXPA05003950A (pl)
NO (1) NO20052378L (pl)
NZ (1) NZ539264A (pl)
OA (1) OA13079A (pl)
PL (1) PL377966A1 (pl)
UA (1) UA79830C2 (pl)
WO (2) WO2004035577A2 (pl)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000071102A2 (en) * 1999-05-19 2000-11-30 Neurosearch A/S Inhibitors of proton-gated cation channels and their use in the treatment of ischaemic disorders
US20060211724A1 (en) * 2003-04-28 2006-09-21 Verschueren Gaston W Hiv integrase inhibitors
WO2005028478A1 (en) * 2003-09-19 2005-03-31 Gilead Sciences, Inc. Aza-quinolinol phosphonate integrase inhibitor compounds
CA2547418A1 (en) * 2003-12-08 2005-06-23 The Research Foundation Of State University Of New York Site selectively tagged and templated molecularly imprinted polymers for sensor applications
WO2005061519A1 (en) 2003-12-19 2005-07-07 Takeda San Diego, Inc. Kinase inhibitors
US7598087B2 (en) * 2004-01-07 2009-10-06 The Research Foundation Of State University Of New York Protein imprinted polymers with integrated emission sites
ATE411030T1 (de) * 2004-04-14 2008-10-15 Gilead Sciences Inc Phosphonatanaloga von hiv- integrasehemmerverbindungen
EP1756114B1 (en) * 2004-05-07 2014-11-19 Merck Sharp & Dohme Corp. Hiv integrase inhibitors
WO2005120516A2 (en) * 2004-06-09 2005-12-22 Merck & Co., Inc. Hiv integrase inhibitors
US7550598B2 (en) 2004-08-18 2009-06-23 Takeda Pharmaceutical Company Limited Kinase inhibitors
US7745459B2 (en) 2004-09-21 2010-06-29 Japan Tobacco Inc. Quinolizinone compound and use thereof as HIV integrase inhibitor
DE602005023333D1 (de) 2004-10-15 2010-10-14 Takeda Pharmaceutical Kinaseinhibitoren
EP1888581A2 (en) * 2005-05-16 2008-02-20 Gilead Sciences, Inc. Hiv-integrase inhibitor compounds
US8013159B2 (en) * 2005-05-19 2011-09-06 Merck Canada Inc. Quinoline derivatives as EP4 antagonists
US20080076740A1 (en) * 2005-07-27 2008-03-27 Gilead Sciences, Inc. Antiviral compounds
WO2007019130A2 (en) * 2005-08-04 2007-02-15 Smithkline Beecham Corporation Hiv integrase inhibitors
US8119655B2 (en) 2005-10-07 2012-02-21 Takeda Pharmaceutical Company Limited Kinase inhibitors
EP1973908A2 (en) * 2005-12-21 2008-10-01 Gilead Sciences, Inc. Processes and intermediates useful for preparing integrase inhibitor compounds
US20090233964A1 (en) * 2005-12-30 2009-09-17 Gilead Sciences, Inc. Methods for improving the pharmacokinetics of hiv integrase inhibitors
BRPI0620865A2 (pt) 2005-12-30 2011-11-29 Gilead Sciences Inc métodos para melhorar a farmacocinética de inibidores das integrases do hiv
WO2007136714A2 (en) * 2006-05-16 2007-11-29 Gilead Sciences, Inc. Integrase inhibitors
SG158147A1 (en) 2006-10-09 2010-01-29 Takeda Pharmaceutical Kinase inhibitors
US20090291921A1 (en) * 2007-11-20 2009-11-26 Gilead Sciences, Inc. Integrase inhibitors
CN101977610B (zh) 2008-01-25 2012-05-16 奇默里克斯公司 治疗病毒感染的方法
CN103951643B (zh) * 2008-07-25 2015-12-09 盐野义制药株式会社 用作hiv整合酶抑制剂的化合物
MX2011000971A (es) * 2008-07-28 2011-06-24 Polymedix Inc Compuestos antipaludicos.
KR101678563B1 (ko) 2008-12-11 2016-11-22 비이브 헬쓰케어 컴퍼니 카르바모일피리돈 hiv 인테그라제 억제제를 위한 제조방법 및 중간체
KR101733625B1 (ko) 2008-12-11 2017-05-10 시오노기세야쿠 가부시키가이샤 카르바모일피리돈 hiv 인테그라제 억제제 및 중간체의 합성
TWI518084B (zh) 2009-03-26 2016-01-21 鹽野義製藥股份有限公司 哌喃酮與吡啶酮衍生物之製造方法
EP2270021A1 (en) * 2009-06-18 2011-01-05 Centre National de la Recherche Scientifique Phosphonates synthons for the synthesis of phosphonates derivatives showing better bioavailability
WO2011011483A1 (en) * 2009-07-22 2011-01-27 Glaxosmithkline Llc Chemical compounds
JP5624148B2 (ja) 2009-10-13 2014-11-12 エランコ・アニマル・ヘルス・アイルランド・リミテッド 大環状インテグラーゼ阻害剤
US8283366B2 (en) 2010-01-22 2012-10-09 Ambrilia Biopharma, Inc. Derivatives of pyridoxine for inhibiting HIV integrase
JP5745869B2 (ja) * 2010-01-22 2015-07-08 富山化学工業株式会社 アルアルキル基を有する複素環化合物
PT2534150T (pt) 2010-02-12 2017-05-02 Chimerix Inc Métodos para tratar uma infecção viral
TWI582097B (zh) 2010-03-23 2017-05-11 Viiv醫療保健公司 製備胺甲醯吡啶酮衍生物及中間體之方法
TWI503323B (zh) * 2010-03-29 2015-10-11 Oncotherapy Science Inc 三環化合物以及含此化合物之pbk抑制劑
RU2567385C2 (ru) 2010-04-02 2015-11-10 ЯНССЕН Ар ЭНД Ди АЙРЛЭНД Макроциклические ингибиторы интегразы
WO2012131539A1 (en) 2011-03-31 2012-10-04 Pfizer Inc. Novel bicyclic pyridinones
CA3131037A1 (en) 2011-11-30 2013-06-06 Emory University Antiviral jak inhibitors useful in treating or preventing retroviral and other viral infections
KR101365849B1 (ko) * 2012-03-28 2014-02-24 경동제약 주식회사 솔리페나신 또는 그의 염의 제조방법 및 이에 사용되는 신규 중간체
UA110688C2 (uk) 2012-09-21 2016-01-25 Пфайзер Інк. Біциклічні піридинони
US10260089B2 (en) 2012-10-29 2019-04-16 The Research Foundation Of The State University Of New York Compositions and methods for recognition of RNA using triple helical peptide nucleic acids
IL296496B2 (en) 2014-12-26 2024-10-01 Univ Emory N4-hydroxycytidine and derivatives and anti-viral uses related thereto
TN2017000342A1 (en) 2015-02-03 2019-01-16 Pfizer Novel cyclopropabenzofuranyl pyridopyrazinediones
CN104803905B (zh) * 2015-04-17 2017-10-10 复旦大学 一种合成异吲哚啉‑1‑酮衍生物的方法
CN107709288A (zh) * 2016-02-03 2018-02-16 四川海思科制药有限公司 一种磷酰胺衍生物及制备方法和用途
CN109305990B (zh) * 2017-07-28 2021-02-26 四川海思科制药有限公司 一种磷酸衍生物及制备方法和用途
CN109305989B (zh) * 2017-07-28 2021-02-26 四川海思科制药有限公司 一种磷酰胺衍生物及制备方法和用途
KR102626210B1 (ko) 2017-12-07 2024-01-18 에모리 유니버시티 N4-하이드록시사이티딘 및 유도체 및 이와 관련된 항-바이러스 용도

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH385846A (de) * 1960-03-31 1964-12-31 Geigy Ag J R Verfahren zur Herstellung von neuen 7-Acyl-8-hydroxy-chinolinen und ihre Verwendung als Fungizide und Bakterizide im Pflanzen- und Materialschutz
US4816570A (en) * 1982-11-30 1989-03-28 The Board Of Regents Of The University Of Texas System Biologically reversible phosphate and phosphonate protective groups
US4968788A (en) * 1986-04-04 1990-11-06 Board Of Regents, The University Of Texas System Biologically reversible phosphate and phosphonate protective gruops
AU651835B2 (en) 1990-06-13 1994-08-04 Arnold Glazier Phosphorous prodrugs
EP0481214B1 (en) * 1990-09-14 1998-06-24 Institute Of Organic Chemistry And Biochemistry Of The Academy Of Sciences Of The Czech Republic Prodrugs of phosphonates
JP3531944B2 (ja) * 1991-02-07 2004-05-31 アベンティス・ファーマ・ソシエテ・アノニム 新規のベンジル基で置換された窒素系二環式誘導体及びその製造方法
EP0520573A1 (en) * 1991-06-27 1992-12-30 Glaxo Inc. Cyclic imide derivatives
US5639881A (en) * 1991-11-08 1997-06-17 Arizona Board Of Regents Acting On Behalf Of Arizona State University Synthesis and elucidation of pyrimido (4,5-Q) quinazoline derivatives
TW304945B (pl) * 1992-06-27 1997-05-11 Hoechst Ag
US5798340A (en) * 1993-09-17 1998-08-25 Gilead Sciences, Inc. Nucleotide analogs
US5538988A (en) * 1994-04-26 1996-07-23 Martinez; Gregory R. Benzocycloalkylazolethione derivatives
US5854275A (en) * 1996-05-16 1998-12-29 Pfizer Inc. Cyclic imide derivatives
US6310211B1 (en) * 1996-09-10 2001-10-30 Pharmacia & Upjohn Company 8-hydroxy-7-substituted quinolines as anti-viral agents
WO1999007701A1 (en) * 1997-08-05 1999-02-18 Sugen, Inc. Tricyclic quinoxaline derivatives as protein tyrosine kinase inhibitors
US6312662B1 (en) * 1998-03-06 2001-11-06 Metabasis Therapeutics, Inc. Prodrugs phosphorus-containing compounds
CA2329134A1 (en) 1998-06-03 1999-12-09 David L. Clark Hiv integrase inhibitors
WO1999062520A1 (en) 1998-06-03 1999-12-09 Merck & Co., Inc. Hiv integrase inhibitors
MXPA00012248A (es) * 1998-06-10 2003-04-25 Arena Pharm Inc Incrementadores de acetilcolina.
US6187907B1 (en) * 1998-08-31 2001-02-13 James Chen Triple helix coil template having a biologically active ligand
WO2000036132A1 (en) 1998-12-14 2000-06-22 Merck & Co., Inc. Hiv integrase inhibitors
PL348596A1 (en) 1998-12-25 2002-06-03 Shionogi & Co Aromatic heterocycle compounds having hiv integrase inhibiting activities
AU763231B2 (en) 1999-06-02 2003-07-17 Shionogi & Co., Ltd. Novel processes for the preparation of substituted propenone derivatives
JP2003503386A (ja) 1999-06-25 2003-01-28 メルク エンド カムパニー インコーポレーテッド 1−(芳香族またはヘテロ芳香族置換)−3−(ヘテロ芳香族置換)−1,3−プロパンジオン類およびそれの使用
US6245806B1 (en) 1999-08-03 2001-06-12 Merck & Co., Inc. HIV integrase inhibitors
WO2001027309A1 (en) * 1999-10-13 2001-04-19 Merck & Co., Inc. Hiv integrase inhibitors
AU1532802A (en) * 2000-10-12 2002-04-22 Merck & Co Inc Aza- and polyaza-naphthalenyl-carboxamides useful as hiv integrase inhibitors
ATE430745T1 (de) 2000-10-12 2009-05-15 Merck & Co Inc Aza- und polyaza naphthalenyl karboxamide als inhibitoren der hiv-integrase
WO2002036734A2 (en) 2000-10-12 2002-05-10 Merck & Co., Inc. Aza-and polyaza-naphthalenyl ketones useful as hiv integrase inhibitors
DE60124577T2 (de) 2000-10-12 2007-09-27 Merck & Co., Inc. Aza- und polyaza-naphthalenylcarbonsäureamide als hiv-integrase-hemmer
WO2002030970A2 (en) * 2000-10-13 2002-04-18 Bayer Aktiengesellschaft Human histone deacetylase gene
US6518767B1 (en) * 2000-10-19 2003-02-11 Schweitzer Engineering Laboratories, Inc. Line differential protection system for a power transmission line
ATE411030T1 (de) * 2004-04-14 2008-10-15 Gilead Sciences Inc Phosphonatanaloga von hiv- integrasehemmerverbindungen

Also Published As

Publication number Publication date
KR20050087787A (ko) 2005-08-31
MXPA05003950A (es) 2005-06-17
PL377966A1 (pl) 2006-02-20
AP2005003279A0 (en) 2005-06-30
NO20052378D0 (no) 2005-05-13
WO2004035576A2 (en) 2004-04-29
EA011399B1 (ru) 2009-02-27
OA13079A (en) 2006-11-10
US7253180B2 (en) 2007-08-07
AU2003301439A1 (en) 2004-05-04
WO2004035577A2 (en) 2004-04-29
AU2003301306A1 (en) 2004-05-04
UA79830C2 (en) 2007-07-25
NZ539264A (en) 2007-08-31
AU2003301439A8 (en) 2004-05-04
JP2006514099A (ja) 2006-04-27
AP1858A (en) 2008-06-30
WO2004035577A3 (en) 2004-07-29
US20090029939A1 (en) 2009-01-29
IS7845A (is) 2005-05-13
EA200500660A1 (ru) 2005-10-27
CA2501881A1 (en) 2004-04-29
CN100374438C (zh) 2008-03-12
BR0315405A (pt) 2005-08-09
US20040167124A1 (en) 2004-08-26
EP1558613A2 (en) 2005-08-03
WO2004035576A3 (en) 2004-06-24
CN1726212A (zh) 2006-01-25
HRP20050431A2 (en) 2005-10-31
US20040157804A1 (en) 2004-08-12

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