DE2112716A1 - Neue 4-(4-Biphenylyl)-4-oxobuttersaeuren,ihre Salze und ihre Ester - Google Patents

Neue 4-(4-Biphenylyl)-4-oxobuttersaeuren,ihre Salze und ihre Ester

Info

Publication number
DE2112716A1
DE2112716A1 DE19712112716 DE2112716A DE2112716A1 DE 2112716 A1 DE2112716 A1 DE 2112716A1 DE 19712112716 DE19712112716 DE 19712112716 DE 2112716 A DE2112716 A DE 2112716A DE 2112716 A1 DE2112716 A1 DE 2112716A1
Authority
DE
Germany
Prior art keywords
general formula
acid
biphenylyl
oxo
butyric acid
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.)
Pending
Application number
DE19712112716
Other languages
German (de)
English (en)
Inventor
Wolfhard Dipl-Chem Dr Engel
Josef Dipl-Chem Dr Nickl
Ernst Dipl-Chem Dr Seeger
Helmut Dipl-Chem Dr Teufel
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.)
Boehringer Ingelheim Pharma GmbH and Co KG
Original Assignee
Dr Karl Thomae 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 Dr Karl Thomae GmbH filed Critical Dr Karl Thomae GmbH
Priority to DE19712112716 priority Critical patent/DE2112716A1/de
Priority to CH1317075A priority patent/CH572015A5/xx
Priority to CH371672A priority patent/CH573387A5/xx
Priority to ES400791A priority patent/ES400791A1/es
Priority to NL7203400A priority patent/NL7203400A/xx
Priority to AT00693/73A priority patent/AT319925B/de
Priority to AT00696/73A priority patent/AT318594B/de
Priority to AT00694/73A priority patent/AT318592B/de
Priority to SE7203420A priority patent/SE393102B/xx
Priority to BE780821A priority patent/BE780821A/xx
Priority to IL38999A priority patent/IL38999A/xx
Priority to AT00683/73A priority patent/AT320624B/de
Priority to AT00686/73A priority patent/AT318589B/de
Priority to AT00682/73A priority patent/AT319923B/de
Priority to IE338/72A priority patent/IE36174B1/xx
Priority to DK124072A priority patent/DK132944C/da
Priority to AT00681/73A priority patent/AT320623B/de
Priority to AT00691/73A priority patent/AT318591B/de
Priority to ZA721798A priority patent/ZA721798B/xx
Priority to AT00690/73A priority patent/AT320625B/de
Priority to AT00695/73A priority patent/AT318593B/de
Priority to AT00688/73A priority patent/AT319924B/de
Priority to AT00697/73A priority patent/AT318595B/de
Priority to AT00684/73A priority patent/AT318587B/de
Priority to AT00687/73A priority patent/AT318590B/de
Priority to GB1241672A priority patent/GB1390091A/en
Priority to AT00685/73A priority patent/AT318588B/de
Priority to AT00689/73A priority patent/AT317879B/de
Priority to AT222272A priority patent/AT311949B/de
Priority to AT00692/73A priority patent/AT317880B/de
Priority to AT00680/73A priority patent/AT319922B/de
Priority to FR7209420A priority patent/FR2130390A1/fr
Priority to ES406528A priority patent/ES406528A1/es
Priority to ES406537A priority patent/ES406537A1/es
Priority to ES406536A priority patent/ES406536A1/es
Priority to ES406532A priority patent/ES406532A1/es
Priority to ES406526A priority patent/ES406526A1/es
Priority to ES406533A priority patent/ES406533A1/es
Priority to ES406530A priority patent/ES406530A1/es
Priority to ES406534A priority patent/ES406534A1/es
Priority to ES406539A priority patent/ES406539A1/es
Priority to ES406529A priority patent/ES406529A1/es
Priority to ES406535A priority patent/ES406535A1/es
Priority to ES406531A priority patent/ES406531A1/es
Priority to ES406538A priority patent/ES406538A1/es
Priority to ES406527A priority patent/ES406527A1/es
Publication of DE2112716A1 publication Critical patent/DE2112716A1/de
Priority to US05/406,196 priority patent/US4021479A/en
Priority to US05/543,266 priority patent/US3997589A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/49—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by carboxyl groups
    • C07C205/56—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by carboxyl groups having nitro groups bound to carbon atoms of six-membered aromatic rings and carboxyl groups bound to acyclic carbon atoms of the carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/45—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
    • C07C45/46—Friedel-Crafts reactions
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
    • C07C57/52—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms containing halogen
    • C07C57/58—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms containing halogen containing six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C59/40—Unsaturated compounds
    • C07C59/42—Unsaturated compounds containing hydroxy or O-metal groups
    • C07C59/56—Unsaturated compounds containing hydroxy or O-metal groups containing halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C59/40—Unsaturated compounds
    • C07C59/76—Unsaturated compounds containing keto groups
    • C07C59/88—Unsaturated compounds containing keto groups containing halogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
DE19712112716 1971-03-17 1971-03-17 Neue 4-(4-Biphenylyl)-4-oxobuttersaeuren,ihre Salze und ihre Ester Pending DE2112716A1 (de)

Priority Applications (48)

Application Number Priority Date Filing Date Title
DE19712112716 DE2112716A1 (de) 1971-03-17 1971-03-17 Neue 4-(4-Biphenylyl)-4-oxobuttersaeuren,ihre Salze und ihre Ester
CH1317075A CH572015A5 (cs) 1971-03-17 1972-03-14
CH371672A CH573387A5 (cs) 1971-03-17 1972-03-14
ES400791A ES400791A1 (es) 1971-03-17 1972-03-15 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil)-4-oxobutiricos y sus esteres.
NL7203400A NL7203400A (cs) 1971-03-17 1972-03-15
AT00693/73A AT319925B (de) 1971-03-17 1972-03-16 Vzh von neuen 4-(4-biphenylyl)-4-oxo-buttersaeuren,ihren salzen und ihren estern
AT00696/73A AT318594B (de) 1971-03-17 1972-03-16 Verfahren zur herstellung von neuen 4-(4-biphenylyl)-4-oxobuttersaeuren,ihren salzen und ihren estern
AT00694/73A AT318592B (de) 1971-03-17 1972-03-16 Verfahren zur herstellung von neuen 4-(4-biphenylyl)-4-oxobuttersaeuren,ihren salzen und ihren estern
SE7203420A SE393102B (sv) 1971-03-17 1972-03-16 Forfarande for framstellning av nya 4-(4-bifenylyl)-4-oxo-smorsyror med farmakologiska egenskaper
BE780821A BE780821A (fr) 1971-03-17 1972-03-16 Nouveaux derives de l'acide 4-(4-biphenylyl) butyrique
IL38999A IL38999A (en) 1971-03-17 1972-03-16 4-(4-biphenyl)-butyric acids and derivatives thereof and the preparation of such compounds
AT00683/73A AT320624B (de) 1971-03-17 1972-03-16 Vzh von neuen 4-(4-biphenylyl)-4-oxobuttersaeuren,ihren salzen und ihren estern
AT00686/73A AT318589B (de) 1971-03-17 1972-03-16 Verfahren zur herstellung von neuen 4-(4-biphenylyl)-4-oxobuttersaeuren,ihren salzen und ihren estern
AT00682/73A AT319923B (de) 1971-03-17 1972-03-16 Vzh von neuen 4-(4-biphenylyl)-4-oxo-buttersaeuren,ihren salzen und ihren estern
IE338/72A IE36174B1 (en) 1971-03-17 1972-03-16 4-(4-biphenylyl)-butyric acid derivatives
DK124072A DK132944C (da) 1971-03-17 1972-03-16 Analogifremgangsmade til fremstilling af 4-(4-biphenylyl)-4-oxo-smorsyrer eller estere eller salte heraf
AT00681/73A AT320623B (de) 1971-03-17 1972-03-16 Vzh von neuen 4-(4-biphenylyl)-4-oxobuttersaeuren,ihren salzen und ihren estern
AT00691/73A AT318591B (de) 1971-03-17 1972-03-16 Verfahren zur herstellung von neuen 4-(4-biphenylyl)-4-oxobuttersaeuren,ihren salzen und ihren estern
ZA721798A ZA721798B (en) 1971-03-17 1972-03-16 Improvements relating to 4-(4-biphenylyl)-butyric acid derivatives
AT00690/73A AT320625B (de) 1971-03-17 1972-03-16 Vzh von neuen 4-(4-biphenylyl)-4-oxobuttersaeuren,ihren salzen und ihren estern
AT00695/73A AT318593B (de) 1971-03-17 1972-03-16 Verfahren zur herstellung von neuen 4-(4-biphenylyl)-4-oxobuttersaeuren,ihren salzen und ihren estern
AT00688/73A AT319924B (de) 1971-03-17 1972-03-16 Vzh von neuen 4-(4-biphenylyl)-4-oxo-buttersaeuren,ihren salzen und ihren estern
AT00697/73A AT318595B (de) 1971-03-17 1972-03-16 Verfahren zur herstellung von neuen 4-(4-biphenylyl)-4-oxobuttersaeuren,ihren salzen und ihren estern
AT00684/73A AT318587B (de) 1971-03-17 1972-03-16 Verfahren zur herstellung von neuen 4-(4-biphenylyl)-4-oxobuttersaeuren,ihren salzen und ihren estern
AT00687/73A AT318590B (de) 1971-03-17 1972-03-16 Verfahren zur herstellung von neuen 4-(4-biphenylyl)-4-oxobuttersaeuren,ihren salzen und ihren estern
GB1241672A GB1390091A (en) 1971-03-17 1972-03-16 4-4-biphenylyl-butyric acid derivatives
AT00685/73A AT318588B (de) 1971-03-17 1972-03-16 Verfahren zur herstellung von neuen 4-(4-biphenylyl)-4-oxobuttersaeuren,ihren salzen und ihren estern
AT00689/73A AT317879B (de) 1971-03-17 1972-03-16 Verfahren zur herstellung von neuen 4-(4-biphenylyl)-4-oxobuttersaeuren,ihren salzen und ihren estern
AT222272A AT311949B (de) 1971-03-17 1972-03-16 Verfahren zur Herstellung von neuen 4-(4-Biphenylyl)-4-oxo-buttersäuren, ihren Salzen und ihren Estern
AT00692/73A AT317880B (de) 1971-03-17 1972-03-16 Verfahren zur herstellung von neuen 4-(4-biphenylyl)-4-oxobuttersaeuren,ihren salzen und ihren estern
AT00680/73A AT319922B (de) 1971-03-17 1972-03-16 Vzh von neuen 4-(4-biphenylyl)-4-oxo-buttersaeuren,ihren salzen und ihren estern
FR7209420A FR2130390A1 (cs) 1971-03-17 1972-03-17
ES406528A ES406528A1 (es) 1971-03-17 1972-09-05 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil)-4-oxobutiricos y sus esteres.
ES406537A ES406537A1 (es) 1971-03-17 1972-09-09 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil) - 4-oxobutiricos y sus esteres.
ES406536A ES406536A1 (es) 1971-03-17 1972-09-09 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil) - 4-oxobutiricos y sus esteres.
ES406532A ES406532A1 (es) 1971-03-17 1972-09-09 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil) - 4-oxobutiricos y sus esteres.
ES406526A ES406526A1 (es) 1971-03-17 1972-09-09 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil)-4-oxobutiricos y sus esteres.
ES406533A ES406533A1 (es) 1971-03-17 1972-09-09 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil) - 4-oxobutiricos y sus esteres.
ES406530A ES406530A1 (es) 1971-03-17 1972-09-09 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil) - 4-oxobutiricos y sus esteres.
ES406534A ES406534A1 (es) 1971-03-17 1972-09-09 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil)-4-oxobutiricos y sus esteres.
ES406539A ES406539A1 (es) 1971-03-17 1972-09-09 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil) - 4-oxobutiricos y sus esteres.
ES406529A ES406529A1 (es) 1971-03-17 1972-09-09 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil)-4-oxobutiricos y sus esteres.
ES406535A ES406535A1 (es) 1971-03-17 1972-09-09 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil) - 4-oxobutiricos y sus esteres.
ES406531A ES406531A1 (es) 1971-03-17 1972-09-09 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil) - 4-oxobutiricos y sus esteres.
ES406538A ES406538A1 (es) 1971-03-17 1972-09-09 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil)-4-oxobutiricos y sus esteres.
ES406527A ES406527A1 (es) 1971-03-17 1972-09-09 Procedimiento para la preparacion de nuevos acidos 4-(4-bi-fenilil) - 4-oxobutiricos y sus esteres.
US05/406,196 US4021479A (en) 1971-03-17 1973-10-15 Derivatives of 4-(4-biphenylyl)-butyric acid
US05/543,266 US3997589A (en) 1971-03-17 1975-01-23 4-(2'-Fluoro-4-biphenylylr-4-oxo-butyric acid and esters and salts thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712112716 DE2112716A1 (de) 1971-03-17 1971-03-17 Neue 4-(4-Biphenylyl)-4-oxobuttersaeuren,ihre Salze und ihre Ester

Publications (1)

Publication Number Publication Date
DE2112716A1 true DE2112716A1 (de) 1972-10-05

Family

ID=5801760

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712112716 Pending DE2112716A1 (de) 1971-03-17 1971-03-17 Neue 4-(4-Biphenylyl)-4-oxobuttersaeuren,ihre Salze und ihre Ester

Country Status (7)

Country Link
AT (19) AT318588B (cs)
CH (2) CH573387A5 (cs)
DE (1) DE2112716A1 (cs)
DK (1) DK132944C (cs)
ES (15) ES400791A1 (cs)
SE (1) SE393102B (cs)
ZA (1) ZA721798B (cs)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534909A1 (fr) * 1981-10-22 1984-04-27 Roussel Uclaf Nouveaux derives amines de l'acide 4-phenyl 4-oxo 2-butenoiques, leur preparation, leur application comme medicaments et les compositions les renfermant
EP0180290A1 (en) * 1984-08-31 1986-05-07 SPOFA Spojené Podniky Pro Zdravotnickou Vyrobu Omega-(2',4'-dihalobiphenylyl)oxo alkanoic acids and process for their preparation
WO1997043247A1 (en) * 1996-05-15 1997-11-20 Bayer Corporation Inhibition of matrix metalloproteases by substituted phenethyl compounds
WO1997043245A1 (en) * 1996-05-15 1997-11-20 Bayer Corporation Inhibition of matrix metalloproteases by acetylene containing compounds
US5968795A (en) * 1996-05-15 1999-10-19 Bayer Corporation Biaryl acetylenes as inhibitors of matrix metalloproteases
WO2002042250A1 (fr) 2000-11-27 2002-05-30 Universite Louis Pasteur (Etablissement Public A Caractere Scientifique, Culturel Et Professionnel) DERIVES DE L'ACIDE 4-HYDROXYBUTANOÏQUE ET DE SON HOMOLOGUE SUPERIEUR COMME LIGANDS DES RECEPTEURS DU η-HYDROXYBUTYRATE (GHB) COMPOSITIONS PHARMACEUTIQUES LES CONTENANT ET UTILISATIONS PHARMACEUTIQUES
US7091228B2 (en) 2003-05-09 2006-08-15 Bayer Pharmaceuticals Corporation Preparation and use of aryl alkyl acid derivatives for the treatment of obesity
WO2008003299A1 (de) * 2006-07-07 2008-01-10 Christian-Albrechts-Universitaet Zu Kiel Basische acetophenone als hemmstoffe von no-synthasen

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001049648A1 (en) * 2000-01-04 2001-07-12 Korea Research Institute Of Chemical Technology Preparing method of 2-phenylalkanoic acid derivatives
CN115803026A (zh) * 2020-06-26 2023-03-14 瓦伦塔有限责任公司 戊二酰亚胺衍生物用于治疗与异常白介素-6活性相关的疾病的用途

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534909A1 (fr) * 1981-10-22 1984-04-27 Roussel Uclaf Nouveaux derives amines de l'acide 4-phenyl 4-oxo 2-butenoiques, leur preparation, leur application comme medicaments et les compositions les renfermant
AT390254B (de) * 1981-10-22 1990-04-10 Roussel Uclaf Verfahren zur herstellung von neuen aminderivaten der 4-phenyl-4-oxo-2-butensaeure und von deren salzen
EP0180290A1 (en) * 1984-08-31 1986-05-07 SPOFA Spojené Podniky Pro Zdravotnickou Vyrobu Omega-(2',4'-dihalobiphenylyl)oxo alkanoic acids and process for their preparation
WO1997043247A1 (en) * 1996-05-15 1997-11-20 Bayer Corporation Inhibition of matrix metalloproteases by substituted phenethyl compounds
WO1997043245A1 (en) * 1996-05-15 1997-11-20 Bayer Corporation Inhibition of matrix metalloproteases by acetylene containing compounds
US5968795A (en) * 1996-05-15 1999-10-19 Bayer Corporation Biaryl acetylenes as inhibitors of matrix metalloproteases
WO2002042250A1 (fr) 2000-11-27 2002-05-30 Universite Louis Pasteur (Etablissement Public A Caractere Scientifique, Culturel Et Professionnel) DERIVES DE L'ACIDE 4-HYDROXYBUTANOÏQUE ET DE SON HOMOLOGUE SUPERIEUR COMME LIGANDS DES RECEPTEURS DU η-HYDROXYBUTYRATE (GHB) COMPOSITIONS PHARMACEUTIQUES LES CONTENANT ET UTILISATIONS PHARMACEUTIQUES
FR2817256A1 (fr) * 2000-11-27 2002-05-31 Univ Pasteur Derives de l'acides 4-hydroxybutanoique et de son homologue superieur comme ligands des recepteurs du gamma- hydroxybutyrate (ghb), compositions pharmaceutiques les contenant et utilisations pharmaceutiques
US7091228B2 (en) 2003-05-09 2006-08-15 Bayer Pharmaceuticals Corporation Preparation and use of aryl alkyl acid derivatives for the treatment of obesity
US7423156B2 (en) 2003-05-09 2008-09-09 Bayer Pharmaceuticals Corporation Preparation and use of aryl alkyl acid derivatives for the treatment of obesity
US7968576B2 (en) 2003-05-09 2011-06-28 Smith Roger A Preparation and use of aryl alkyl acid derivatives for the treatment of obesity
US8013166B2 (en) 2003-05-09 2011-09-06 Bayer Healthcare Llc Preparation and use of aryl alkyl acid derivatives for the treatment of obesity
WO2008003299A1 (de) * 2006-07-07 2008-01-10 Christian-Albrechts-Universitaet Zu Kiel Basische acetophenone als hemmstoffe von no-synthasen
US7994365B2 (en) 2006-07-07 2011-08-09 Christian-Albrechts-Universitaet Zu Kiel Basic acetophenones as inhibitors of NO-synthases

Also Published As

Publication number Publication date
ES406527A1 (es) 1975-09-01
DK132944C (da) 1976-08-02
AT319923B (de) 1975-01-10
AT319922B (de) 1975-01-10
ES406530A1 (es) 1975-09-01
AT311949B (de) 1973-12-10
AT319924B (de) 1975-01-10
CH572015A5 (cs) 1976-01-30
AT317879B (de) 1974-09-25
AT320624B (de) 1975-02-25
AT318593B (de) 1974-10-25
AT318589B (de) 1974-10-25
DK132944B (da) 1976-03-01
AT320623B (de) 1975-02-25
AT319925B (de) 1975-01-10
ES406537A1 (es) 1975-09-01
ES406529A1 (es) 1975-09-16
ZA721798B (en) 1973-11-28
AT318588B (de) 1974-10-25
ES406534A1 (es) 1975-09-16
ES406528A1 (es) 1975-08-01
AT318594B (de) 1974-10-25
ES400791A1 (es) 1975-01-16
AT318591B (de) 1974-10-25
AT318592B (de) 1974-10-25
ES406536A1 (es) 1975-09-01
ES406533A1 (es) 1975-09-01
ES406539A1 (es) 1975-09-01
AT320625B (de) 1975-02-25
AT318590B (de) 1974-10-25
ES406535A1 (es) 1975-09-01
ES406526A1 (es) 1975-09-01
AT318595B (de) 1974-10-25
SE393102B (sv) 1977-05-02
ES406532A1 (es) 1975-09-01
CH573387A5 (cs) 1976-03-15
ES406531A1 (es) 1975-09-01
AT317880B (de) 1974-09-25
ES406538A1 (es) 1975-09-16
AT318587B (de) 1974-10-25

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