NO892762L - Fremgangsmaate for fremstilling av nye difosfonsyrederivater. - Google Patents

Fremgangsmaate for fremstilling av nye difosfonsyrederivater.

Info

Publication number
NO892762L
NO892762L NO89892762A NO892762A NO892762L NO 892762 L NO892762 L NO 892762L NO 89892762 A NO89892762 A NO 89892762A NO 892762 A NO892762 A NO 892762A NO 892762 L NO892762 L NO 892762L
Authority
NO
Norway
Prior art keywords
preparation
procedure
acid derivatives
diphosphonic acid
new diphosphonic
Prior art date
Application number
NO89892762A
Other languages
English (en)
Norwegian (no)
Other versions
NO892762D0 (no
Inventor
Elmar Bosies
Harald Zilch
Original Assignee
Boehringer Mannheim Gmbh
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 Boehringer Mannheim Gmbh filed Critical Boehringer Mannheim Gmbh
Publication of NO892762D0 publication Critical patent/NO892762D0/no
Publication of NO892762L publication Critical patent/NO892762L/no

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/28Phosphorus compounds with one or more P—C bonds
    • C07F9/38Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/40Esters thereof
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/28Phosphorus compounds with one or more P—C bonds
    • C07F9/38Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/3804Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
    • C07F9/3839Polyphosphonic acids
    • C07F9/3873Polyphosphonic acids containing nitrogen substituent, e.g. N.....H or N-hydrocarbon group which can be substituted by halogen or nitro(so), N.....O, N.....S, N.....C(=X)- (X =O, S), N.....N, N...C(=X)...N (X =O, S)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00Drugs for disorders of the metabolism
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00Drugs for disorders of the metabolism
    • A61P3/12Drugs for disorders of the metabolism for electrolyte homeostasis
    • A61P3/14Drugs for disorders of the metabolism for electrolyte homeostasis for calcium homeostasis
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/28Phosphorus compounds with one or more P—C bonds
    • C07F9/38Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/3804Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
    • C07F9/3839Polyphosphonic acids
    • C07F9/386Polyphosphonic acids containing hydroxy substituents in the hydrocarbon radicals
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/553Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having one nitrogen atom as the only ring hetero atom
    • C07F9/572Five-membered rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/553Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having one nitrogen atom as the only ring hetero atom
    • C07F9/572Five-membered rings
    • C07F9/5728Five-membered rings condensed with carbocyclic rings or carbocyclic ring systems
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/553Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having one nitrogen atom as the only ring hetero atom
    • C07F9/576Six-membered rings
    • C07F9/59Hydrogenated pyridine rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/553Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having one nitrogen atom as the only ring hetero atom
    • C07F9/576Six-membered rings
    • C07F9/60Quinoline or hydrogenated quinoline ring systems
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/645Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having two nitrogen atoms as the only ring hetero atoms
    • C07F9/6503Five-membered rings
    • C07F9/6506Five-membered rings having the nitrogen atoms in positions 1 and 3
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/645Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having two nitrogen atoms as the only ring hetero atoms
    • C07F9/6509Six-membered rings
    • C07F9/650952Six-membered rings having the nitrogen atoms in the positions 1 and 4
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6527Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07F9/6533Six-membered rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6536Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having nitrogen and sulfur atoms with or without oxygen atoms, as the only ring hetero atoms
    • C07F9/6544Six-membered rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Biochemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Hematology (AREA)
  • Diabetes (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Obesity (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Rheumatology (AREA)
  • Endocrinology (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Detergent Compositions (AREA)
  • Photoreceptors In Electrophotography (AREA)
NO89892762A 1988-07-05 1989-07-04 Fremgangsmaate for fremstilling av nye difosfonsyrederivater. NO892762L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3822650A DE3822650A1 (de) 1988-07-05 1988-07-05 Neue diphosphonsaeurederivate, verfahren zu deren herstellung und diese verbindungen enthaltende arzneimittel

Publications (2)

Publication Number Publication Date
NO892762D0 NO892762D0 (no) 1989-07-04
NO892762L true NO892762L (no) 1990-01-08

Family

ID=6357951

Family Applications (1)

Application Number Title Priority Date Filing Date
NO89892762A NO892762L (no) 1988-07-05 1989-07-04 Fremgangsmaate for fremstilling av nye difosfonsyrederivater.

Country Status (22)

Country Link
US (1) US5002937A (ru)
EP (1) EP0350002B1 (ru)
JP (1) JPH0256492A (ru)
KR (1) KR900001711A (ru)
CN (1) CN1039248A (ru)
AT (1) ATE84538T1 (ru)
AU (1) AU616283B2 (ru)
CA (1) CA1334409C (ru)
DD (1) DD287508A5 (ru)
DE (2) DE3822650A1 (ru)
DK (1) DK327689A (ru)
ES (1) ES2046383T3 (ru)
FI (1) FI893262A (ru)
HU (1) HU205127B (ru)
IL (1) IL90804A (ru)
MX (1) MX16658A (ru)
NO (1) NO892762L (ru)
NZ (1) NZ229787A (ru)
PL (1) PL158956B1 (ru)
PT (1) PT91053B (ru)
RU (1) RU1823875C (ru)
ZA (1) ZA895069B (ru)

Families Citing this family (37)

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US5157027A (en) * 1991-05-13 1992-10-20 E. R. Squibb & Sons, Inc. Bisphosphonate squalene synthetase inhibitors and method
US5270365A (en) * 1991-12-17 1993-12-14 Merck & Co., Inc. Prevention and treatment of periodontal disease with alendronate
JP3141053B2 (ja) * 1991-12-26 2001-03-05 アベンティス ファーマ株式会社 ビスホスホン酸誘導体
TW237386B (ru) * 1992-04-15 1995-01-01 Ciba Geigy
US5283057A (en) * 1992-04-24 1994-02-01 The Procter & Gamble Company Risedronate in oral compositions
ATE168379T1 (de) * 1992-05-29 1998-08-15 Procter & Gamble Pharma Quaternare stickstoff-enthaltende phosphonat- verbindungen zur behandlung abnormalen calzium und phosphat-metabolismus sowie zahnsteinbildung
TW258729B (ru) * 1992-06-22 1995-10-01 Ciba Geigy
JP3526575B2 (ja) 1993-03-08 2004-05-17 エーザイ株式会社 ホスホン酸誘導体
JPH06298779A (ja) * 1993-04-15 1994-10-25 Hoechst Japan Ltd ヘテロ環イミノビスメチレンビスホスホン酸誘導体
US5462932A (en) * 1994-05-17 1995-10-31 Merck & Co., Inc. Oral liquid alendronate formulations
DE19962924A1 (de) 1999-12-24 2001-07-05 Bayer Ag Substituierte Oxazolidinone und ihre Verwendung
US6677320B2 (en) 2000-01-20 2004-01-13 Hoffmann-La Roches Inc. Parenteral bisphosphonate composition with improved local tolerance
PE20011061A1 (es) 2000-02-01 2001-11-20 Procter & Gamble Cristalizacion selectiva del acido 3-piridil-1-hidroxi-etiliden-1,1-bisfosfonico sodio como el hemipentahidrato o el monohidrato
PE20011065A1 (es) * 2000-02-01 2001-11-21 Procter & Gamble Proceso para fabricar bisfosfonatos geminales
EP1284754B1 (en) 2000-05-05 2006-01-04 F. Hoffmann-La Roche Ag Gel-like pharmaceutical composition for subcutaneous administration comprising bisphosphonic acids or their salts
DE10129725A1 (de) * 2001-06-20 2003-01-02 Bayer Ag Kombinationstherapie substituierter Oxazolidinone
KR100638122B1 (ko) * 2001-12-21 2006-10-24 더 프록터 앤드 갬블 캄파니 골 장애의 치료 방법
PT1506041E (pt) * 2002-05-10 2007-12-28 Hoffmann La Roche Ácido ibandrónico para o tratamento e a prevenção da osteoporose
SI1790347T1 (sl) * 2002-12-20 2015-03-31 F. Hoffmann-La Roche Ag Formulacija z visokim odmerkom ibandronata
DE10300111A1 (de) * 2003-01-07 2004-07-15 Bayer Healthcare Ag Verfahren zur Herstellung von 5-Chlor-N-({(5S)-2-oxo-3-[4-(3-oxo-4-morpholinyl)-phenyl]-1,3-oxazolidin-5-yl}-methyl)-2-thiophencarboxamid
ATE451380T1 (de) * 2003-08-21 2009-12-15 Sun Pharmaceuticals Ind Ltd Verfahren zur herstellung von bisphosphonsäureverbindungen
DE10355461A1 (de) 2003-11-27 2005-06-23 Bayer Healthcare Ag Verfahren zur Herstellung einer festen, oral applizierbaren pharmazeutischen Zusammensetzung
US7214818B2 (en) * 2004-10-29 2007-05-08 Hoffmann-La Roche Inc. Method for synthesizing bisphosphonate
DE102004062475A1 (de) * 2004-12-24 2006-07-06 Bayer Healthcare Ag Feste, oral applizierbare pharmazeutische Darreichungsformen mit modifizierter Freisetzung
EP1685841A1 (en) 2005-01-31 2006-08-02 Bayer Health Care Aktiengesellschaft Prevention and treatment of thromboembolic disorders
DE102005045518A1 (de) * 2005-09-23 2007-03-29 Bayer Healthcare Ag 2-Aminoethoxyessigsäure-Derivate und ihre Verwendung
DE102005047561A1 (de) 2005-10-04 2007-04-05 Bayer Healthcare Ag Feste, oral applizierbare pharmazeutische Darreichungsformen mit schneller Wirkstofffreisetzung
DE102005047558A1 (de) * 2005-10-04 2008-02-07 Bayer Healthcare Ag Kombinationstherapie substituierter Oxazolidinone zur Prophylaxe und Behandlung von cerebralen Durchblutungsstörungen
SG166126A1 (en) 2005-10-04 2010-11-29 Bayer Schering Pharma Ag Novel polymorphous form and the amorphous form of 5-chloro-n-({(5s)-2-oxo- 3-[4-(3-oxo-4-morpholinyl)-phenyl]-1,3-oxazolidine-5-yl}-methyl)-2-thiophene carboxamide
DE102005048824A1 (de) * 2005-10-10 2007-04-12 Bayer Healthcare Ag Behandlung und Prophylaxe von Mikroangiopathien
DE102006051625A1 (de) * 2006-11-02 2008-05-08 Bayer Materialscience Ag Kombinationstherapie substituierter Oxazolidinone
CN101679465B (zh) 2007-04-11 2013-08-21 霍夫曼-拉罗奇有限公司 伊班膦酸盐的制备方法
WO2012069420A2 (en) * 2010-11-26 2012-05-31 Leo Pharma A/S Calcium-sensing receptor-active compounds
US8748097B1 (en) 2011-12-02 2014-06-10 President And Fellows Of Harvard College Identification of agents for treating calcium disorders and uses thereof
PL407922A1 (pl) 2014-04-16 2015-10-26 Wrocławskie Centrum Badań Eit + Spółka Z Ograniczoną Odpowiedzialnością Nowe bisfosfoniany i ich zastosowanie
KR102116528B1 (ko) 2015-09-09 2020-05-28 칭화 유니버시티 고-효율 백신 아쥬반트로서 메발로네이트 경로 억제제
WO2019076269A1 (zh) 2017-10-16 2019-04-25 清华大学 甲羟戊酸通路抑制剂及其药物组合物

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
DE3203308A1 (de) * 1982-01-27 1983-07-28 Schering Ag, 1000 Berlin Und 4619 Bergkamen Diphosphonsaeure-derivate und diese enthaltende pharmazeutische praeparate
DE3365492D1 (en) * 1982-01-27 1986-10-02 Schering Ag Diphosphonic acid derivatives and pharmaceutical preparations containing them
FR2531088B1 (fr) * 1982-07-29 1987-08-28 Sanofi Sa Produits anti-inflammatoires derives de l'acide methylenediphosphonique et leur procede de preparation
GB8419489D0 (en) * 1984-07-31 1984-09-05 Leo Pharm Prod Ltd Chemical compounds
DE3428524A1 (de) * 1984-08-02 1986-02-13 Boehringer Mannheim Gmbh, 6800 Mannheim Neue diphosphonsaeurederivate, verfahren zu deren herstellung und diese verbindungen enthaltende arzneimittel
US4687768A (en) * 1984-12-21 1987-08-18 The Procter & Gamble Company Certain hexahydroindan-2,2-diphosphonic acids useful in treating diseases associated with abnormal calcium and phosphate metabolism
IL77243A (en) * 1984-12-21 1996-11-14 Procter & Gamble Pharmaceutical compositions containing geminal diphosphonic acid compounds and certain such novel compounds
DE3512536A1 (de) * 1985-04-06 1986-10-16 Boehringer Mannheim Gmbh, 6800 Mannheim Neue diphosphonsaeure-derivate, verfahren zu deren herstellung und diese verbindungen enthaltende arzneimittel
GB8615916D0 (en) * 1986-06-30 1986-08-06 Amersham Int Plc Bone-seeking complexes of technetium-99m
DE3623397A1 (de) * 1986-07-11 1988-01-14 Boehringer Mannheim Gmbh Neue diphosphonsaeurederivate, verfahren zu deren herstellung und diese verbindungen enthaltende arzneimittel
DE3626058A1 (de) * 1986-08-01 1988-02-11 Boehringer Mannheim Gmbh Neue diphosphonsaeurederivate, verfahren zu deren herstellung und diese verbindungen enthaltende arzneimittel
US4868164A (en) * 1986-12-19 1989-09-19 Norwich Eaton Pharmaceuticals, Inc. Octahydro-pyridine diphosphonate compounds, pharmaceutical compositions, and methods for treating abnormal calcium and phosphate metabolism
IL84731A0 (en) * 1986-12-19 1988-05-31 Norwich Eaton Pharma Heterocycle-substituted diphosphonic acids and salts and esters and pharmaceutical compositions containing them
EP0317505A1 (de) * 1987-11-13 1989-05-24 Ciba-Geigy Ag Neue Azacycloalkylalkandiphosphonsäuren

Also Published As

Publication number Publication date
AU3728789A (en) 1990-01-11
ZA895069B (en) 1990-04-25
DD287508A5 (de) 1991-02-28
ES2046383T3 (es) 1994-02-01
DE58903263D1 (de) 1993-02-25
NO892762D0 (no) 1989-07-04
CA1334409C (en) 1995-02-14
FI893262A (fi) 1990-01-06
CN1039248A (zh) 1990-01-31
PL158956B1 (pl) 1992-10-30
DE3822650A1 (de) 1990-02-01
AU616283B2 (en) 1991-10-24
ATE84538T1 (de) 1993-01-15
EP0350002B1 (de) 1993-01-13
RU1823875C (ru) 1993-06-23
EP0350002A1 (de) 1990-01-10
MX16658A (es) 1993-11-01
PT91053A (pt) 1990-02-08
DK327689D0 (da) 1989-06-30
FI893262A0 (fi) 1989-07-04
IL90804A (en) 1994-04-12
HUT50842A (en) 1990-03-28
PT91053B (pt) 1995-01-31
HU205127B (en) 1992-03-30
KR900001711A (ko) 1990-02-27
DK327689A (da) 1990-01-06
US5002937A (en) 1991-03-26
NZ229787A (en) 1991-09-25
IL90804A0 (en) 1990-01-18
JPH0256492A (ja) 1990-02-26

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