YU224281A - Process for obtaining new purine and pyrimidine compounds - Google Patents

Process for obtaining new purine and pyrimidine compounds

Info

Publication number
YU224281A
YU224281A YU02242/81A YU224281A YU224281A YU 224281 A YU224281 A YU 224281A YU 02242/81 A YU02242/81 A YU 02242/81A YU 224281 A YU224281 A YU 224281A YU 224281 A YU224281 A YU 224281A
Authority
YU
Yugoslavia
Prior art keywords
pyrimidine compounds
obtaining new
new purine
purine
obtaining
Prior art date
Application number
YU02242/81A
Other languages
English (en)
Inventor
K K Ogilvie
Original Assignee
Ens Bio Logicals 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 Ens Bio Logicals Inc filed Critical Ens Bio Logicals Inc
Publication of YU224281A publication Critical patent/YU224281A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
    • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
    • C07D239/47—One nitrogen atom and one oxygen or sulfur atom, e.g. cytosine
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
    • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
    • C07D239/52—Two oxygen atoms
    • C07D239/54—Two oxygen atoms as doubly bound oxygen atoms or as unsubstituted hydroxy radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
    • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
    • C07D239/52—Two oxygen atoms
    • C07D239/54—Two oxygen atoms as doubly bound oxygen atoms or as unsubstituted hydroxy radicals
    • C07D239/545—Two oxygen atoms as doubly bound oxygen atoms or as unsubstituted hydroxy radicals with other hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/553—Two oxygen atoms as doubly bound oxygen atoms or as unsubstituted hydroxy radicals with other hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms with halogen atoms or nitro radicals directly attached to ring carbon atoms, e.g. fluorouracil
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
    • C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
    • C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D251/14—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom
    • C07D251/16—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom to only one ring carbon atom
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D473/00—Heterocyclic compounds containing purine ring systems
    • 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
    • C07D473/18—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 one oxygen and one nitrogen atom, e.g. guanine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02—Silicon compounds
    • C07F7/08—Compounds having one or more C—Si linkages
    • C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
    • C07F7/1804—Compounds having Si-O-C linkages
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/645—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having two nitrogen atoms as the only ring hetero atoms
    • C07F9/6509—Six-membered rings
    • C07F9/6512—Six-membered rings having the nitrogen atoms in positions 1 and 3
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6561—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing systems of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring or ring system, with or without other non-condensed hetero rings
    • C07F9/65616—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing systems of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring or ring system, with or without other non-condensed hetero rings containing the ring system having three or more than three double bonds between ring members or between ring members and non-ring members, e.g. purine or analogs
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H19/00—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
    • C07H19/02—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
    • C07H19/04—Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
    • C07H19/06—Pyrimidine radicals
    • C07H19/10—Pyrimidine radicals with the saccharide radical esterified by phosphoric or polyphosphoric acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H19/00—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
    • C07H19/02—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
    • C07H19/04—Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
    • C07H19/16—Purine radicals
    • C07H19/20—Purine radicals with the saccharide radical esterified by phosphoric or polyphosphoric acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Biochemistry (AREA)
  • Genetics & Genomics (AREA)
  • Biotechnology (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Oncology (AREA)
  • Communicable Diseases (AREA)
  • Virology (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Saccharide Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
YU02242/81A 1980-09-16 1981-09-16 Process for obtaining new purine and pyrimidine compounds YU224281A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/187,631 US4347360A (en) 1980-09-16 1980-09-16 Ring open nucleoside analogues

Publications (1)

Publication Number Publication Date
YU224281A true YU224281A (en) 1983-10-31

Family

ID=22689793

Family Applications (1)

Application Number Title Priority Date Filing Date
YU02242/81A YU224281A (en) 1980-09-16 1981-09-16 Process for obtaining new purine and pyrimidine compounds

Country Status (20)

Country Link
US (1) US4347360A (enExample)
EP (2) EP0243670B1 (enExample)
JP (1) JPS5785373A (enExample)
AR (1) AR228756A1 (enExample)
AU (1) AU546840B2 (enExample)
CA (1) CA1305137C (enExample)
CS (1) CS258109B2 (enExample)
DE (1) DE3177156D1 (enExample)
DK (1) DK411081A (enExample)
ES (1) ES505491A0 (enExample)
FI (1) FI72977C (enExample)
HK (1) HK82292A (enExample)
IE (1) IE58275B1 (enExample)
IL (1) IL63832A (enExample)
MX (1) MX7299E (enExample)
NO (1) NO161739C (enExample)
PT (1) PT73678B (enExample)
SG (1) SG74392G (enExample)
YU (1) YU224281A (enExample)
ZA (1) ZA816389B (enExample)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5157120A (en) * 1980-09-16 1992-10-20 Syntex (U.S.A.) Inc. Guanine derivatives
US4508898A (en) * 1980-09-16 1985-04-02 Ogilvie Kelvin K Antiviral triazine compounds
US4501744A (en) * 1980-09-16 1985-02-26 Ens Bio Logicals Inc. Substituted-aza-cytosine compounds and anti-viral uses thereof
US4423050A (en) * 1981-05-21 1983-12-27 Syntex (U.S.A.) Inc. 9-(1,3-Dihydroxy-2-propoxymethyl)guanine as antiviral agent
US4355032B2 (en) * 1981-05-21 1990-10-30 9-(1,3-dihydroxy-2-propoxymethyl)guanine as antiviral agent
HU189609B (en) * 1981-08-11 1986-07-28 The Wellcome Foundation Ltd,Us Process for production of new purin derivatives with antivirus effect and medical preparatives containing thereof as reagent
NZ201662A (en) * 1981-08-26 1986-07-11 Merck & Co Inc 9-(1,3-(and 2,3)-dihydroxy-1-(and 2)-propoxy-methyl)guanine derivatives and methods for their preparation
US5250535A (en) * 1982-02-01 1993-10-05 Syntex Inc. Substituted 9-(1 or 3-monoacyloxy or 1,3-diacyloxy-2-propoxymethyl) purines as antiviral agent
US4902678A (en) * 1982-02-12 1990-02-20 Syntex (U.S.A.) Inc. Anti-viral compositions
US4451478A (en) * 1982-03-12 1984-05-29 Newport Pharmaceuticals International, Inc. Imidazole compounds
US4609661A (en) * 1982-08-09 1986-09-02 Syntex (U.S.A.) Inc. Substituted 9-(1-O- or 3-O-monosubstituted or 1,3-di-O-substituted propoxymethyl)purines as antiviral agents
US4564618A (en) * 1982-09-17 1986-01-14 Glaxo Group Limited 5-Halovinyl-2'-deoxyuridine derivatives
EP0105486A3 (en) * 1982-09-30 1984-05-16 Syntex (U.S.A.) Inc. 1-monophosphate esters, 1,3-bisphosphate esters and cyclic phosphate esters of 9-(1,3-dihydroxy-2-propoxymethyl)-guanine as antiviral agents
US4609662A (en) * 1982-10-14 1986-09-02 Burroughs Wellcome Co. Method for using purine derivatives
US4462986A (en) * 1982-11-04 1984-07-31 Ens Bio Logicals, Inc. Synergistic anti-herpes compositions
US4565868A (en) * 1983-02-07 1986-01-21 Syntex (U.S.A.) Inc. Process for preparing guanine derivatives
US4460690A (en) * 1983-02-18 1984-07-17 Ens Bio Logicals Inc. Stimulation of viral growth rate
US4461757A (en) * 1983-02-23 1984-07-24 Ens Bio Logicals Inc. Dimethylaminomethylenated anti-herpes compounds
US5047533A (en) * 1983-05-24 1991-09-10 Sri International Acyclic purine phosphonate nucleotide analogs
EP0145739B1 (en) * 1983-05-24 1989-02-08 Sri International Novel antiviral agents
US4880820A (en) * 1983-06-24 1989-11-14 Merck & Co., Inc. Guanine derivatives
US4670424A (en) * 1983-09-19 1987-06-02 Merck & Co., Inc. Cyclic pyrophosphates of purine and pyrimidine acyclonucleosides
US4897479A (en) * 1983-09-30 1990-01-30 Merck & Co., Inc. Arylsulfonyloxy purine intermediates
US4918219A (en) * 1983-10-31 1990-04-17 Warner-Lambert Company Glycerine derivatives
US4806642A (en) * 1984-10-05 1989-02-21 Warner-Lambert Company Purine derivatives
IE842642L (en) * 1983-10-31 1985-04-30 Harvard College Purine Derivatives
IL73682A (en) * 1983-12-20 1991-08-16 Medivir Ab Antiviral pharmaceutical compositions containing 9-hydroxy aliphatic derivatives of guanine,some new such derivatives and process for their preparation
US4579849A (en) * 1984-04-06 1986-04-01 Merck & Co., Inc. N-alkylguanine acyclonucleosides as antiviral agents
EP0167385B1 (en) * 1984-07-03 1992-03-18 The Wellcome Foundation Limited Antiviral compounds, treatment and formulations
EP0190123A1 (en) * 1984-07-20 1986-08-13 GAUNTT, Charles, O. Immunoregulatory and anti-viral compound
CS263951B1 (en) * 1985-04-25 1989-05-12 Antonin Holy 9-(phosponylmethoxyalkyl)adenines and method of their preparation
MY101126A (en) * 1985-12-13 1991-07-31 Beecham Group Plc Novel compounds
CA1330794C (en) * 1987-03-27 1994-07-19 Phillip Frost Anti-viral compounds, dosage forms and methods
US4863927A (en) * 1987-05-11 1989-09-05 Merck & Co., Inc. 1-(2-hydroxymethyl)cycloalkylmethyl)-5-substituted uracils
JPH0819111B2 (ja) * 1987-10-22 1996-02-28 ポーラ化成工業株式会社 ２―ニトロイミダゾール誘導体及びこれを有効成分とする放射線増感剤
CH676712A5 (enExample) * 1988-03-31 1991-02-28 Mitsubishi Chem Ind
US5246931A (en) * 1988-10-25 1993-09-21 Bristol-Myers Squibb Company Carbocyclic nucleoside analogs
US5043339A (en) * 1988-12-19 1991-08-27 Burroughs Wellcome Co. Antiviral compounds
GB8829571D0 (en) * 1988-12-19 1989-02-08 Wellcome Found Antiviral compounds
CA2009110A1 (en) * 1989-02-02 1990-08-02 Richard L. Tolman Cyclic monophosphates of purine and pyrimidine acyclonucleosides
DE3906357A1 (de) * 1989-03-01 1990-09-06 Boehringer Mannheim Gmbh Neue acyclische nucleosid-analoga, verfahren zu ihrer herstellung und verwendung dieser verbindungen als antivirale arzneimittel
DE4020481A1 (de) * 1990-06-27 1992-01-02 Hoechst Ag Verfahren zur herstellung von substituierten acyclischen nukleosiden und dabei auftretende zwischenprodukte
US5068119A (en) * 1990-09-28 1991-11-26 Nabisco Brands, Inc. Acid-hydrolyzable ester derivatives as low calorie fat mimetics
US5532225A (en) * 1992-07-31 1996-07-02 Sri International Acyclic purine phosphonate nucleotide analogs as antiviral agents, and related synthetic methods
US6338963B1 (en) 1994-07-25 2002-01-15 Neotherapeutics, Inc. Use of carbon monoxide dependent guanylyl cyclase modifiers to stimulate neuritogenesis
US6303617B1 (en) 1998-05-04 2001-10-16 Neotherapeutics, Inc. Serotonin-like 9-substituted hypoxanthine and methods of use
US6297226B1 (en) 1999-10-15 2001-10-02 Neotherapeutics, Inc. Synthesis and methods of use of 9-substituted guanine derivatives
US6407237B1 (en) 2001-02-21 2002-06-18 Neotherapeutics, Inc. Crystal forms of 9-substituted hypoxanthine derivatives
US6849735B1 (en) * 2000-06-23 2005-02-01 Merck Eprova Ag Methods of synthesis for 9-substituted hypoxanthine derivatives
US6630490B2 (en) 2000-07-07 2003-10-07 Neotherapeutics, Inc. Methods for treatment of disease-induced peripheral neuropathy and related conditions
US6759427B2 (en) * 2001-04-20 2004-07-06 Spectrum Pharmaceuticals, Inc. Synthesis and methods of use of tetrahydroindolone analogues and derivatives
US20030055249A1 (en) * 2001-07-17 2003-03-20 Fick David B. Synthesis and methods of use of pyrimidine analogues and derivatives
DE602006018195D1 (de) * 2005-12-08 2010-12-23 Acad Of Science Czech Republic Als antivirale mittel geeignete azacytosinderivate
US20090203636A1 (en) * 2006-03-14 2009-08-13 Bondarev Igor E Prevention and Treatment of Cancer and Other Diseases
WO2012079035A1 (en) 2010-12-10 2012-06-14 Sigmapharm Laboratories, Llc Highly stable compositions of orally active nucleotide analogues or orally active nucleotide analogue prodrugs

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1523865A (en) * 1974-09-02 1978-09-06 Wellcome Found Purine compunds and salts thereof
US4199574A (en) * 1974-09-02 1980-04-22 Burroughs Wellcome Co. Methods and compositions for treating viral infections and guanine acyclic nucleosides
US4146715A (en) * 1975-08-27 1979-03-27 Burroughs Wellcome Co. 2-amido-9-(2-acyloxyethoxymethyl)hypoxanthines
JPS52105195A (en) * 1976-03-01 1977-09-03 Wellcome Found Substituted purine
US4158056A (en) * 1978-07-13 1979-06-12 Eli Lilly And Company Antiviral method
US4355032B2 (en) * 1981-05-21 1990-10-30 9-(1,3-dihydroxy-2-propoxymethyl)guanine as antiviral agent
HU189609B (en) * 1981-08-11 1986-07-28 The Wellcome Foundation Ltd,Us Process for production of new purin derivatives with antivirus effect and medical preparatives containing thereof as reagent
NZ201662A (en) * 1981-08-26 1986-07-11 Merck & Co Inc 9-(1,3-(and 2,3)-dihydroxy-1-(and 2)-propoxy-methyl)guanine derivatives and methods for their preparation

Also Published As

Publication number Publication date
IE812140L (en) 1982-03-16
JPH052671B2 (enExample) 1993-01-13
CA1305137C (en) 1992-07-14
NO813140L (no) 1982-03-17
EP0243670A1 (en) 1987-11-04
HK82292A (en) 1992-10-30
IE58275B1 (en) 1993-08-25
IL63832A0 (en) 1981-12-31
SG74392G (en) 1992-10-02
DE3177156D1 (de) 1990-03-08
AU546840B2 (en) 1985-09-26
CS683281A2 (en) 1987-08-13
NO161739B (no) 1989-06-12
US4347360B1 (enExample) 1985-10-08
FI72977B (fi) 1987-04-30
FI812857L (fi) 1982-03-17
EP0243670B1 (en) 1992-07-22
MX7299E (es) 1988-04-27
IL63832A (en) 1985-06-30
CS258109B2 (en) 1988-07-15
ES8206488A1 (es) 1982-08-16
PT73678B (en) 1983-10-20
DK411081A (da) 1982-03-17
ZA816389B (en) 1982-09-29
EP0049072B1 (en) 1990-01-31
US4347360A (en) 1982-08-31
AR228756A1 (es) 1983-04-15
NO161739C (no) 1989-09-20
JPS5785373A (en) 1982-05-28
AU7527381A (en) 1982-03-25
ES505491A0 (es) 1982-08-16
EP0049072A1 (en) 1982-04-07
PT73678A (en) 1981-10-01
FI72977C (fi) 1987-08-10

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