ES8800945A1 - Un procedimiento para preparar derivados de 8-fenilxantina - Google Patents

Un procedimiento para preparar derivados de 8-fenilxantina

Info

Publication number
ES8800945A1
ES8800945A1 ES554380A ES554380A ES8800945A1 ES 8800945 A1 ES8800945 A1 ES 8800945A1 ES 554380 A ES554380 A ES 554380A ES 554380 A ES554380 A ES 554380A ES 8800945 A1 ES8800945 A1 ES 8800945A1
Authority
ES
Spain
Prior art keywords
phenyl
xanthines
phenylxanthines
alkynyleneoxy
alkenyleneoxy
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES554380A
Other languages
English (en)
Other versions
ES554380A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wellcome Foundation Ltd
Original Assignee
Wellcome Foundation Ltd
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 Wellcome Foundation Ltd filed Critical Wellcome Foundation Ltd
Publication of ES554380A0 publication Critical patent/ES554380A0/es
Publication of ES8800945A1 publication Critical patent/ES8800945A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D473/00—Heterocyclic compounds containing purine ring systems
    • C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D473/00—Heterocyclic compounds containing purine ring systems
    • C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
    • C07D473/20—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two sulfur atoms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P11/00—Drugs for disorders of the respiratory system
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00—Drugs for disorders of the cardiovascular system
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D473/00—Heterocyclic compounds containing purine ring systems
    • C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
    • C07D473/04—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
    • C07D473/06—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D473/00—Heterocyclic compounds containing purine ring systems
    • C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
    • C07D473/04—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
    • C07D473/06—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3
    • C07D473/08—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3 with methyl radicals in positions 1 and 3, e.g. theophylline
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D473/00—Heterocyclic compounds containing purine ring systems
    • C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
    • C07D473/22—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 one oxygen and one sulfur atom

Landscapes

  • Organic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pulmonology (AREA)
  • Cardiology (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)

Abstract

PROCEDIMIENTO PARA PREPARAR DERIVADOS DE 8-FENILXANTINA. COMPRENDE: A) CICLAR, EN PRESENCIA DE UN OXIDANTE COMO NITROBENCENO, UN COMPUESTO DE FORMULA (II), PARA OBTENER UN COMPUESTO DE FORMULA (I); Y B) FORMAR UNA SAL O SOLVATO DEL COMPUESTO DE FORMULA (I), QUE SEA FISIOLOGICAMENTE ACEPTABLE. SIENDO: X1 Y X2, H, ALQUILO DE C 1 A 6 Y OTROS; X3 Y X4, H, ALCOXI DE C 1 A 6 Y OTROS; X5 Y X6, OXIGENO O AZUFRE. SE UTILIZA COMO INTERMEDIO EN LA SINTESIS DE XANTINAS, SUS SALES Y SOLVATOS.
ES554380A 1985-04-27 1986-04-25 Un procedimiento para preparar derivados de 8-fenilxantina Expired ES8800945A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858510758A GB8510758D0 (en) 1985-04-27 1985-04-27 Compounds

Publications (2)

Publication Number Publication Date
ES554380A0 ES554380A0 (es) 1987-12-01
ES8800945A1 true ES8800945A1 (es) 1987-12-01

Family

ID=10578311

Family Applications (1)

Application Number Title Priority Date Filing Date
ES554380A Expired ES8800945A1 (es) 1985-04-27 1986-04-25 Un procedimiento para preparar derivados de 8-fenilxantina

Country Status (22)

Country Link
US (2) US4879296A (es)
EP (1) EP0203721B1 (es)
JP (1) JPH0788381B2 (es)
KR (1) KR860008176A (es)
AP (1) AP22A (es)
AT (1) ATE77088T1 (es)
AU (1) AU581507B2 (es)
CA (1) CA1286666C (es)
DE (1) DE3685608T2 (es)
DK (1) DK169271B1 (es)
ES (1) ES8800945A1 (es)
FI (1) FI861750A (es)
GB (1) GB8510758D0 (es)
GR (1) GR861107B (es)
HU (1) HUT41027A (es)
IE (1) IE60022B1 (es)
IL (1) IL78605A (es)
MC (1) MC1743A1 (es)
NO (1) NO861643L (es)
NZ (1) NZ215948A (es)
PT (1) PT82451B (es)
ZA (1) ZA863132B (es)

Families Citing this family (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4710503A (en) * 1985-02-07 1987-12-01 Euroceltique S.A. 6-thioxanthine derivatives
GB8510758D0 (en) * 1985-04-27 1985-06-05 Wellcome Found Compounds
GB8610136D0 (en) * 1986-04-25 1986-05-29 Wellcome Found Compounds
AT388500B (de) * 1987-10-27 1989-06-26 Wellcome Found Antivirale 8-phenylxanthine
US5298508A (en) * 1988-07-19 1994-03-29 The United States Of America As Represented By The Department Of Health And Human Services Irreversible inhibitors of adenosine receptors
US5310916A (en) * 1988-07-19 1994-05-10 The United States Of America As Represented By The Secretary Of The Department Of Health And Human Services Trifunctional agents useful as irreversible inhibitors of A1-adenosine receptors
WO1990012797A1 (en) * 1989-04-19 1990-11-01 The United States Of America, As Represented By The Secretary, U.S. Department Of Commerce Sulfer-containing xanthine derivatives as adenosin antagonists
AU7579291A (en) * 1990-04-16 1991-11-11 United States of America, as represented by the Secretary, U.S. Department of Commerce, The Use of purinergic receptor agonists as antineoplastic agents
DE4129603A1 (de) * 1991-09-06 1993-03-11 Thomae Gmbh Dr K Kondensierte 5-gliedrige heterocyclen, verfahren zu ihrer herstellung und diese verbindungen enthaltende arzneimittel
CA2082325A1 (en) * 1991-11-08 1993-05-09 Fumio Suzuki Xanthine derivatives
EP0556778A3 (en) * 1992-02-17 1993-11-24 Kyowa Hakko Kogyo Kk Xanthine derivatives
US5484920A (en) * 1992-04-08 1996-01-16 Kyowa Hakko Kogyo Co., Ltd. Therapeutic agent for Parkinson's disease
US5300298A (en) * 1992-05-06 1994-04-05 The Pennsylvania Research Corporation Methods of treating obesity with purine related compounds
TW252044B (es) * 1992-08-10 1995-07-21 Boehringer Ingelheim Kg
JP2613355B2 (ja) * 1992-09-28 1997-05-28 協和醗酵工業株式会社 パーキンソン氏病治療剤
CA2112031A1 (en) * 1992-12-24 1994-06-25 Fumio Suzuki Xanthine derivatives
US5521315A (en) * 1993-01-12 1996-05-28 Cell Therapeutics, Inc. Olefin substituted long chain compounds
WO1994025462A1 (en) * 1993-05-03 1994-11-10 The United States Of America, Represented By The 8-substituted 1,3,7-trialkyl-xanthine derivatives as a2-selective adenosine receptor antagonists
GB9312853D0 (en) 1993-06-22 1993-08-04 Euro Celtique Sa Chemical compounds
WO1995011681A1 (en) * 1993-10-29 1995-05-04 Merck & Co., Inc. Human adenosine receptor antagonists
US5646156A (en) * 1994-04-25 1997-07-08 Merck & Co., Inc. Inhibition of eosinophil activation through A3 adenosine receptor antagonism
US5922751A (en) 1994-06-24 1999-07-13 Euro-Celtique, S.A. Aryl pyrazole compound for inhibiting phosphodiesterase IV and methods of using same
US5591776A (en) 1994-06-24 1997-01-07 Euro-Celtique, S.A. Pheynl or benzyl-substituted rolipram-based compounds for and method of inhibiting phosphodiesterase IV
US6448235B1 (en) 1994-07-11 2002-09-10 University Of Virginia Patent Foundation Method for treating restenosis with A2A adenosine receptor agonists
US6514949B1 (en) 1994-07-11 2003-02-04 University Of Virginia Patent Foundation Method compositions for treating the inflammatory response
GB9415529D0 (en) * 1994-08-01 1994-09-21 Wellcome Found Phenyl xanthine derivatives
DE69531506T2 (de) * 1994-12-13 2004-06-24 Euroceltique S.A. Arylthioxanthine
ATE247655T1 (de) 1994-12-13 2003-09-15 Euro Celtique Sa Dreifachsubstituierte thioxanthine
US6025361A (en) 1994-12-13 2000-02-15 Euro-Celtique, S.A. Trisubstituted thioxanthines
US5733932A (en) * 1995-01-06 1998-03-31 The Picower Institute For Medical Research Compounds and methods of use to derivatize neighboring lysine residues in proteins under physiological conditions
US6268373B1 (en) 1995-06-07 2001-07-31 Euro-Celtique S.A. Trisubstituted thioxanthines
US6166041A (en) 1995-10-11 2000-12-26 Euro-Celtique, S.A. 2-heteroaryl and 2-heterocyclic benzoxazoles as PDE IV inhibitors for the treatment of asthma
AU2603197A (en) 1996-04-10 1997-10-29 United States Of America, Represented By The Secretary, Department Of Health And Human Services, The Use of an a1 adenosine receptor agonist to treat cerebral ischaemia
US6075016A (en) 1996-04-10 2000-06-13 Euro-Celtique S.A. 6,5-fused aromatic ring systems having enhanced phosphodiesterase IV inhibitory activity
US5864037A (en) 1996-06-06 1999-01-26 Euro-Celtique, S.A. Methods for the synthesis of chemical compounds having PDE-IV inhibitory activity
US6294541B1 (en) 1996-06-06 2001-09-25 Euro-Celtique S.A. Purine derivatives having phosphodiesterase IV inhibition activity
US5728560A (en) * 1996-06-14 1998-03-17 Enzon, Inc. Method of treating CD4+ T cell lymphopenia in immuno-compromised patients
US5744473A (en) * 1996-09-16 1998-04-28 Euro-Celtique, S.A. PDE IV inhibitors: "bis-compounds"
GB9703044D0 (en) * 1997-02-14 1997-04-02 Glaxo Group Ltd Phenyl xanthine esters and amides
US6063363A (en) * 1997-05-27 2000-05-16 Goodwin; Gary J Treatment for upper respiratory tract infections with potassium salts
BR9815170A (pt) 1997-12-12 2000-10-10 Euro Celtique S A Luxembourg "método de obter composto aplicável no tratamento de asma em mamìferos"
US6117878A (en) * 1998-02-24 2000-09-12 University Of Virginia 8-phenyl- or 8-cycloalkyl xanthine antagonists of A2B human adenosine receptors
US6303619B1 (en) * 1998-03-12 2001-10-16 University Of Virginia Meta-substituted acidic 8-phenylxanthine antagonists of A3 human adenosine receptors
GB9817623D0 (en) * 1998-08-13 1998-10-07 Glaxo Group Ltd Pharmaceutical compounds
US6319928B1 (en) 1998-11-30 2001-11-20 Euro-Celtique, S.A. Purine derivatives having phosphodiesterase IV inhibition activity
US7427606B2 (en) * 1999-02-01 2008-09-23 University Of Virginia Patent Foundation Method to reduce inflammatory response in transplanted tissue
US7378400B2 (en) * 1999-02-01 2008-05-27 University Of Virginia Patent Foundation Method to reduce an inflammatory response from arthritis
US6232297B1 (en) 1999-02-01 2001-05-15 University Of Virginia Patent Foundation Methods and compositions for treating inflammatory response
JP2002541078A (ja) 1999-04-02 2002-12-03 ユーロ−セルティーク，エス．エー． ホスホジエステラーゼｉｖ阻害活性を有するプリン誘導体
US6545002B1 (en) 1999-06-01 2003-04-08 University Of Virginia Patent Foundation Substituted 8-phenylxanthines useful as antagonists of A2B adenosine receptors
US6322771B1 (en) 1999-06-18 2001-11-27 University Of Virginia Patent Foundation Induction of pharmacological stress with adenosine receptor agonists
US7253176B1 (en) * 2000-05-04 2007-08-07 K.U. Leuven Research & Development Immunosuppressive effects of 8-substituted xanthine derivatives
US6670334B2 (en) 2001-01-05 2003-12-30 University Of Virginia Patent Foundation Method and compositions for treating the inflammatory response
SG176313A1 (en) * 2001-10-01 2011-12-29 Univ Virginia Patent Found 2-propynyl adenosine analogs having a2a agonist activity and compositions thereof
CN100467469C (zh) * 2001-11-09 2009-03-11 Cv医药有限公司 A2b腺苷受体拮抗剂
US7317017B2 (en) 2002-11-08 2008-01-08 Cv Therapeutics, Inc. A2B adenosine receptor antagonists
US6977300B2 (en) * 2001-11-09 2005-12-20 Cv Therapeutics, Inc. A2B adenosine receptor antagonists
US20080318983A1 (en) * 2001-11-09 2008-12-25 Rao Kalla A2b adenosine receptor antagonists
US7125993B2 (en) * 2001-11-09 2006-10-24 Cv Therapeutics, Inc. A2B adenosine receptor antagonists
US20040072848A1 (en) * 2002-02-26 2004-04-15 Huber Brian E Methods of treating irritable bowel syndrome and functional dyspepsia
WO2003105666A2 (en) * 2002-06-12 2003-12-24 Biogen, Inc. Method of treating ischemia reperfusion injury using adenosine receptor antagonists
EP1601649A4 (en) * 2003-02-19 2009-03-04 Endacea Inc A1-adenosine receptor antagonistic
DK1622908T3 (da) * 2003-05-06 2008-11-17 Cv Therapeutics Inc Xanthin-derivater som A2B adenosin-receptor-antagonister
CA2528385C (en) * 2003-06-06 2011-03-15 Endacea, Inc. A1 adenosine receptor antogonists
CA2576826C (en) * 2004-08-02 2014-09-30 University Of Virginia Patent Foundation 2-propynyl adenosine analogs with modified 5'-ribose groups having a2a agonist activity
WO2006023272A1 (en) * 2004-08-02 2006-03-02 University Of Virginia Patent Foundation 2-polycyclic propynyl adenosine analogs having a2a agonist activity
WO2006028618A1 (en) * 2004-08-02 2006-03-16 University Of Virginia Patent Foundation 2-polycyclic propynyl adenosine analogs with modified 5'-ribose groups having a2a agonist activity
SI1789053T1 (sl) * 2004-09-01 2012-09-28 Gilead Sciences Inc Postopek celjenja rane z uporabo antagonistov A2B adenozinskih receptorjev
US20080027022A1 (en) * 2006-02-08 2008-01-31 Linden Joel M Method to treat gastric lesions
WO2007120972A2 (en) 2006-02-10 2007-10-25 University Of Virginia Patent Foundation Method to treat sickle cell disease
US8188063B2 (en) 2006-06-19 2012-05-29 University Of Virginia Patent Foundation Use of adenosine A2A modulators to treat spinal cord injury
US8193200B2 (en) 2007-01-04 2012-06-05 University Of Virginia Patent Foundation Antagonists of A2B adenosine receptors for treatment of inflammatory bowel disease
US8058259B2 (en) * 2007-12-20 2011-11-15 University Of Virginia Patent Foundation Substituted 4-{3-[6-amino-9-(3,4-dihydroxy-tetrahydro-furan-2-yl)-9H-purin-2-yl]-prop-2-ynyl}-piperidine-1-carboxylic acid esters as A2AR agonists

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602795A (en) * 1950-06-24 1952-07-08 Searle & Co Hydroxyalkyl alkyl derivatives of 5-nitroso-6-amino-1, 2, 3, 4-tetrahydro-2, 4-pyrimidinedione
US4452788A (en) * 1982-04-21 1984-06-05 Warner-Lambert Company Substituted 8-phenylxanthines
US4593095A (en) * 1983-02-18 1986-06-03 The Johns Hopkins University Xanthine derivatives
US4612315A (en) * 1984-10-26 1986-09-16 The United States Of America As Represented By The Department Of Health And Human Services Biologically-active 1,3-dipropyl-8-phenylxanthine derivatives
US4696932A (en) * 1984-10-26 1987-09-29 The United States Of America As Represented By The Department Of Health And Human Services Biologically-active xanthine derivatives
GB8510758D0 (en) * 1985-04-27 1985-06-05 Wellcome Found Compounds
DE3522230A1 (de) * 1985-06-21 1987-01-02 Thomae Gmbh Dr K Neue 2-arylimidazole, diese verbindungen enthaltende arzneimittel und verfahren zu ihrer herstellung

Also Published As

Publication number Publication date
IL78605A (en) 1989-07-31
PT82451B (pt) 1988-11-30
HUT41027A (en) 1987-03-30
MC1743A1 (fr) 1987-02-26
JPS6242986A (ja) 1987-02-24
FI861750A0 (fi) 1986-04-25
PT82451A (en) 1986-05-01
IE861104L (en) 1986-10-27
NZ215948A (en) 1989-10-27
AP8600036A0 (en) 1986-02-01
IE60022B1 (en) 1994-05-18
GB8510758D0 (en) 1985-06-05
JPH0788381B2 (ja) 1995-09-27
ES554380A0 (es) 1987-12-01
DK190486A (da) 1986-10-28
FI861750A (fi) 1986-10-28
EP0203721A3 (en) 1988-06-08
ZA863132B (en) 1987-12-30
AP22A (en) 1988-07-20
US4981857A (en) 1991-01-01
CA1286666C (en) 1991-07-23
DK190486D0 (da) 1986-04-24
NO861643L (no) 1986-10-28
KR860008176A (ko) 1986-11-12
IL78605A0 (en) 1986-08-31
DK169271B1 (da) 1994-09-26
DE3685608T2 (de) 1992-12-24
AU5670786A (en) 1986-10-30
EP0203721B1 (en) 1992-06-10
AU581507B2 (en) 1989-02-23
US4879296A (en) 1989-11-07
ATE77088T1 (de) 1992-06-15
EP0203721A2 (en) 1986-12-03
GR861107B (en) 1986-08-04
DE3685608D1 (de) 1992-07-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20051017