ES2134487T3 - Derivados dimeros de dtpa y sus complejos con metales, agentes farmaceuticos que contienen estos complejos, su utilizacion en el diagnostico y la terapia, asi como procedimientos para la preparacion de los complejos y agentes. - Google Patents

Derivados dimeros de dtpa y sus complejos con metales, agentes farmaceuticos que contienen estos complejos, su utilizacion en el diagnostico y la terapia, asi como procedimientos para la preparacion de los complejos y agentes.

Info

Publication number
ES2134487T3
ES2134487T3 ES95929815T ES95929815T ES2134487T3 ES 2134487 T3 ES2134487 T3 ES 2134487T3 ES 95929815 T ES95929815 T ES 95929815T ES 95929815 T ES95929815 T ES 95929815T ES 2134487 T3 ES2134487 T3 ES 2134487T3
Authority
ES
Spain
Prior art keywords
complexes
well
dtpa
diagnosis
derivatives
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 - Lifetime
Application number
ES95929815T
Other languages
English (en)
Inventor
Werner Krause
Franz-Karl Maier
Michael Bauer
Wolf-Ruediger Press
Gabriele Schuhmann-Giampieri
Johannes Platzek
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.)
Bayer Pharma AG
Original Assignee
Schering AG
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 Schering AG filed Critical Schering AG
Application granted granted Critical
Publication of ES2134487T3 publication Critical patent/ES2134487T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C229/02—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
    • C07C229/04—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated
    • C07C229/26—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having more than one amino group bound to the carbon skeleton, e.g. lysine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C237/00—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups
    • C07C237/02—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton
    • C07C237/04—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and saturated
    • C07C237/08—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and saturated having the nitrogen atom of at least one of the carboxamide groups bound to an acyclic carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00—Preparations for testing in vivo
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00—Preparations for testing in vivo
    • A61K49/06—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K51/00—Preparations containing radioactive substances for use in therapy or testing in vivo
    • A61K51/02—Preparations containing radioactive substances for use in therapy or testing in vivo characterised by the carrier, i.e. characterised by the agent or material covalently linked or complexing the radioactive nucleus
    • A61K51/04—Organic compounds
    • A61K51/0474—Organic compounds complexes or complex-forming compounds, i.e. wherein a radioactive metal (e.g. 111In3+) is complexed or chelated by, e.g. a N2S2, N3S, NS3, N4 chelating group
    • A61K51/0478—Organic compounds complexes or complex-forming compounds, i.e. wherein a radioactive metal (e.g. 111In3+) is complexed or chelated by, e.g. a N2S2, N3S, NS3, N4 chelating group complexes from non-cyclic ligands, e.g. EDTA, MAG3
    • A61K51/048—DTPA (diethylenetriamine tetraacetic acid)
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C229/02—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
    • C07C229/04—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated
    • C07C229/06—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton
    • C07C229/10—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton the nitrogen atom of the amino group being further bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings
    • C07C229/16—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton the nitrogen atom of the amino group being further bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings to carbon atoms of hydrocarbon radicals substituted by amino or carboxyl groups, e.g. ethylenediamine-tetra-acetic acid, iminodiacetic acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C229/02—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
    • C07C229/04—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated
    • C07C229/22—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated the carbon skeleton being further substituted by oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C229/02—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
    • C07C229/34—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton containing six-membered aromatic rings
    • C07C229/36—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton containing six-membered aromatic rings with at least one amino group and one carboxyl group bound to the same carbon atom of the carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C229/76—Metal complexes of amino carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C237/00—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups
    • C07C237/02—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton
    • C07C237/04—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and saturated
    • C07C237/06—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and saturated having the nitrogen atoms of the carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

LA INVENCION TRATA DE NUEVOS DERIVADOS DIMERICOS DEL DTPA DE FORMULA GENERAL (I), QUE CONSTAN DE LOS INCREMENTOS (A) Y (B), ESTANDO LOS INCREMENTOS (A) Y (B) UNIDOS ENTE SI MEDIANTE UNO DE LOS SIGUIENTES PARES DE SUSTITUYENTES: R{SUP,1} Y R{SUP,1''}, R{SUP,2} Y R{SUP,2''}, R{SUP,15} Y R{SUP,15''}, R{SUP,1} Y R{SUP,2''}, R{SUP,1''} Y R{SUP,2}, R{SUP,1} Y R{SUP,15}, R{SUP,1} Y R{SUP,15''}, R{SUP,2} Y R{SUP,15''}, R{SUP,2''} Y R{SUP,15}, SIENDO EL PAR DE SUSTITUYENTES UNIDOS UN HETEROCICLO, UN RADICAL FENILO, UNA CADENA DE ALQUILENO DE C{SUB,0}-C{SUB,30} O UNA CADENA DE ARALQUILENO DE C{SUB,7}-C{SUB,30}, QUE PUEDEN ESTAR OPCIONALMENTE SUSTITUIDOS CON GRUPOS 1-4 HIDROXILO, ALCOXILO DE C{SUB,1}-C{SUB,6}, CARBOXILO O MERCAPTO Y/O ESTA INTERRUMPIDA POR 1 A 6 ATOMOS DE OXIGENO, NITROGENO, AZUFRE, GRUPOS SULFINILO Y/O SULFONILO, E Y ES EN CADA CASO UN ATOMO DE HIDROGENO Y/O UN EQIVALENTE DE ION METALICO DE UN ELEMENTO DE NUMERO ATOMICO DE 21-323, 37-39, 42-51 Y 57-83, Y X Y Y{SUP,''} ES UN GRUPO -OY, O CONR{SUP,5}R{SUP,6}; Y LA UTILIZACION DE LOS COMPLEJOS METALICOS EN EL DIAGNOSTICO POR NMR Y/O RAYOS X, EN EL RADIODIAGNOSTICO Y EN LA RADIOTERAPIA, ASI COMO PROCEDIMIENTO PARA SU OBTENCION.
ES95929815T 1994-08-08 1995-08-08 Derivados dimeros de dtpa y sus complejos con metales, agentes farmaceuticos que contienen estos complejos, su utilizacion en el diagnostico y la terapia, asi como procedimientos para la preparacion de los complejos y agentes. Expired - Lifetime ES2134487T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4428874A DE4428874A1 (de) 1994-08-08 1994-08-08 Dimere DTPA-Derivate und deren Metallkomplexe, diese Komplexe enthaltende pharmazeutische Mittel, deren Verwendung in der Diagnostik und Therapie sowie Verfahren zur Herstellung der Komplexe und Mittel

Publications (1)

Publication Number Publication Date
ES2134487T3 true ES2134487T3 (es) 1999-10-01

Family

ID=6525715

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95929815T Expired - Lifetime ES2134487T3 (es) 1994-08-08 1995-08-08 Derivados dimeros de dtpa y sus complejos con metales, agentes farmaceuticos que contienen estos complejos, su utilizacion en el diagnostico y la terapia, asi como procedimientos para la preparacion de los complejos y agentes.

Country Status (21)

Country Link
US (1) US5695737A (es)
EP (1) EP0775104B1 (es)
JP (1) JPH10503777A (es)
KR (1) KR970704668A (es)
AT (1) ATE179696T1 (es)
AU (1) AU695878B2 (es)
CA (1) CA2197074A1 (es)
CZ (1) CZ40597A3 (es)
DE (2) DE4428874A1 (es)
DK (1) DK0775104T3 (es)
ES (1) ES2134487T3 (es)
FI (1) FI970535A (es)
GR (1) GR3030827T3 (es)
HU (1) HUT77532A (es)
IL (1) IL114858A0 (es)
MX (1) MX9701080A (es)
NO (1) NO970602L (es)
PL (1) PL318503A1 (es)
SK (1) SK17397A3 (es)
WO (1) WO1996005167A1 (es)
ZA (1) ZA956650B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6713045B1 (en) 1995-06-02 2004-03-30 Research Corporation Technologies, Inc. Targeted magnetic resonance imaging agents for the detection of physiological processes
US6770261B2 (en) 1995-06-02 2004-08-03 Research Corporation Technologies Magnetic resonance imaging agents for the detection of physiological agents
US5900228A (en) 1996-07-31 1999-05-04 California Institute Of Technology Bifunctional detection agents having a polymer covalently linked to an MRI agent and an optical dye
IT1290417B1 (it) * 1996-08-02 1998-12-03 Bracco Spa Composti chelanti derivati di acidi poliamminopolicarbossilici, loro chelati con ioni metallici paramagnetici, loro preparazione ed
DE19646762B4 (de) * 1996-11-04 2004-05-13 Schering Ag Verwendung von Metallverbindungen zur Herstellung von Mitteln zur Strahlentherapie von Tumoren
US6713046B1 (en) 1997-10-27 2004-03-30 Research Corporation Technologies Magnetic resonance imaging agents for the delivery of therapeutic agents
AU752812B2 (en) * 1997-11-17 2002-10-03 Research Corporation Technologies, Inc. Magnetic resonance imaging agents for the detection of physiological agents
US6673333B1 (en) 2000-05-04 2004-01-06 Research Corporation Technologies, Inc. Functional MRI agents for cancer imaging
AU2001276956A1 (en) 2000-07-17 2002-01-30 California Institute Of Technology Macrocyclic mri contrast agents
WO2002028441A2 (en) 2000-10-04 2002-04-11 California Institute Of Technology Magnetic resonance imaging agents for in vivo labeling and detection of amyloid deposits

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647447A (en) * 1981-07-24 1987-03-03 Schering Aktiengesellschaft Diagnostic media
US4826673A (en) * 1985-01-09 1989-05-02 Mallinckrodt, Inc. Methods and compositions for enhancing magnetic resonance imaging
US4915933A (en) * 1986-06-26 1990-04-10 The University Of New Mexico Mixed complexes as shift and contrast reagents in NMR imaging and spectroscopy
US5338532A (en) * 1986-08-18 1994-08-16 The Dow Chemical Company Starburst conjugates
US5482700A (en) * 1987-03-31 1996-01-09 Schering Aktiengesellschaft Substituted polyamino, polycarboxy complexing agent dimers for MRI and X-ray contrast
DE3710730A1 (de) * 1987-03-31 1988-10-20 Schering Ag Substituierte komplexbildner, komplexe und komplexsalze, verfahren zu deren herstellung und diese enthaltende pharmazeutische mittel
DE3728525A1 (de) * 1987-08-24 1989-03-16 Schering Ag Mehrkernige substituierte komplexbildner, komplexe und komplexsalze, verfahren zu deren herstellung und diese enthaltende pharmazeutische mittel
US5284647A (en) * 1988-03-18 1994-02-08 Schering Aktiengesellschaft Mesotetraphenylporphyrin complex compounds, process for their production and pharmaceutical agents containing them
DE3827940A1 (de) * 1988-08-13 1990-03-01 Schering Ag 13,17-propionsaeure- und propionsaeurederivat- substituierte porphyrin-komplexverbindungen, verfahren zu ihrer herstellung und diese enthaltende pharmazeutische mittel
FR2652004B1 (fr) * 1989-09-21 1994-10-28 Immunotech Partners Nouveaux derives hydrophiles, application au diagnostic et a la therapeutique, kits diagnostiques ou therapeutiques et reactifs immunologiques.
US5244816A (en) * 1989-10-11 1993-09-14 Akzo N.V. Method for purifying chelator conjugated compounds
ES2116291T3 (es) * 1989-10-23 1998-07-16 Nycomed Salutar Inc Agentes quelantes de metales en sitios multiples.
GB8923843D0 (en) * 1989-10-23 1989-12-13 Salutar Inc Compounds
EP0554358A4 (en) * 1990-09-27 1995-09-06 Brunswick Corp Chelating agents
US5385719A (en) * 1991-09-24 1995-01-31 Unger; Evan C. Copolymers and their use as contrast agents in magnetic resonance imaging and in other applications
US5466439A (en) * 1992-11-12 1995-11-14 Magnetic Research, Inc. Polymeric contrast enhancing agents for magnetic resonance images
US5330743A (en) * 1992-11-12 1994-07-19 Magnetic Research, Inc. Aminosaccharide contrast agents for magnetic resonance images

Also Published As

Publication number Publication date
DE59505856D1 (de) 1999-06-10
JPH10503777A (ja) 1998-04-07
WO1996005167A1 (de) 1996-02-22
NO970602D0 (no) 1997-02-10
MX9701080A (es) 1997-05-31
CZ40597A3 (en) 1997-07-16
US5695737A (en) 1997-12-09
HUT77532A (hu) 1998-05-28
AU695878B2 (en) 1998-08-27
ATE179696T1 (de) 1999-05-15
FI970535A0 (fi) 1997-02-07
DE4428874A1 (de) 1996-02-22
CA2197074A1 (en) 1996-02-22
PL318503A1 (en) 1997-06-23
ZA956650B (en) 1996-03-19
NO970602L (no) 1997-02-10
EP0775104B1 (de) 1999-05-06
EP0775104A1 (de) 1997-05-28
AU3343395A (en) 1996-03-07
FI970535A (fi) 1997-02-07
GR3030827T3 (en) 1999-11-30
SK17397A3 (en) 1997-11-05
KR970704668A (ko) 1997-09-06
DK0775104T3 (da) 2000-01-03
IL114858A0 (en) 1995-12-08

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