WO2000071526A1 - Tetramides d'un complexe de gadolinium et application en imagerie medicale - Google Patents
Tetramides d'un complexe de gadolinium et application en imagerie medicale Download PDFInfo
- Publication number
- WO2000071526A1 WO2000071526A1 PCT/FR2000/001382 FR0001382W WO0071526A1 WO 2000071526 A1 WO2000071526 A1 WO 2000071526A1 FR 0001382 W FR0001382 W FR 0001382W WO 0071526 A1 WO0071526 A1 WO 0071526A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- alkyl
- groups
- formula
- group
- racemic compound
- Prior art date
Links
- 0 [*-]C(CCC(O)=O)N(CCN(CCN(CC1)C(CCC(O)=O)C(O)=O)C([*-])CCC(O)=O)CCN1C(CCC(O)=O)C(O)=O Chemical compound [*-]C(CCC(O)=O)N(CCN(CCN(CC1)C(CCC(O)=O)C(O)=O)C([*-])CCC(O)=O)CCN1C(CCC(O)=O)C(O)=O 0.000 description 1
Classifications
-
- 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
- A61K49/00—Preparations for testing in vivo
- A61K49/04—X-ray contrast preparations
- A61K49/0433—X-ray contrast preparations containing an organic halogenated X-ray contrast-enhancing agent
- A61K49/0438—Organic X-ray contrast-enhancing agent comprising an iodinated group or an iodine atom, e.g. iopamidol
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D257/00—Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms
- C07D257/02—Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms not condensed with other rings
Definitions
- the present invention relates to tetramides, derived from the pair of RRRR / SSSS enantiomers of the tetra- ( ⁇ -carboxyethyi) gadoterate represented by the formulas
- R is a bulky hydrophilic group with a molecular mass greater than 200 have a longitudinal relaxivity ⁇ markedly greater than that of chelates not carrying the bulky side group (CH 2 ) 2 CONHR and can be used as contrast agents in diagnostic imaging by magnetic resonance.
- WO97 / 01359 relates to the products of formula II in which R is a group of formula
- the relaxivity r- of a gadoiinium chelate is a complex function of different factors, more or less independent, including the electronic correlation, rotation correlation and water exchange times, factors which depend in particular of the spatial structure of the chelating agent around the paramagnetic cation, so that 2 stereoisomers can have significantly different relaxivities.
- R represents a phenyl or (C 1 -C 8 ) alkyl group, substituted or interrupted by one or more groups chosen from phenyl, alkyl, oxy, amino or amido groups, substituted or not by alkyl, the phenyl groups being able to be substituted by OH, Br, CI, i, (C 1 -C 8 ) alkyl,
- R 1 is H, (C r C 3 ) alkyl or (C 2 -C 8 ) mono- or polyhydroxyalkyl and R 2 is (C 2 -C 8 ) mono- or polyhydroxyalkyl, or else R 1 is H and R 2 is a formula group
- R'- ,, R ' 2 taking any of the meanings given for R- ,, R 2 , excluding A, it being understood that -CO-NR ⁇ or - CO-NR '-, R' 2 have at least two hydroxyl groups, and those in which R is a group
- Z ' is a bond, O, S, NQ, CH 2 , CO, CO-NQ, NQ-CO, NQ-CO-NQ or CO-NQ-CH 2 -CONQ
- Z "is CO-NQ, NQ-CO or CO-NQ-CH 2 -CO-NQ, NQ-CO-CH 2 -NQ-CO with Q is H or a group (CC 4 ) alkyl, optionally hydroxylated
- R * ,, R 2 , R 3 , R 4 , R 5 independently of one another, are chosen from H, Br, Cl, I, CO-NQ T Q S OR N (Q ⁇ ) -CO- Q 2 and Q, and Q 2 , identical or different, are chosen from (C 2 -C 6 ) alkyl groups, optionally hydroxylated, optionally interrupted by an oxygen atom, so that Q 2 and Q 2 comprise both of them from 4 to 10 OH groups, it being understood that at least 1, and at most 2 groups R 1 f R 2 , R 3 , R 4 , R 5 , are amide groups.
- racemic compounds of the invention can be prepared by a method known per se, by the action of the amine RNH 2 on the pair of enantiomeric octaacid complexes of formula I, in aqueous solution, with an agent activating the carboxylic functions, in the conventional conditions of peptide condensations, as described in the previously cited patents, for mixtures of isomers.
- the present invention relates to a method comprising the steps consisting in:
- the invention also relates to the compositions for nuclear magnetic resonance medical imaging which comprise the racemic compounds of the invention associated with the usual vehicles and additives.
- the doses at which these contrast agents will be administered depend on their magnetic efficacy, their biodistribution, their route of administration, as well as the size of the subject, the organ to be observed and the nature of the pathology.
- the unit concentration will be between 0.5 and 5 mM for adults, presented in aqueous solution.
- the isolated products are characterized by their retention times (t r ) in high performance liquid chromatography (HPLC). Their molecular weights were determined by mass spectrometry (electrospray).
- Gadolinium acid chelate [1, 4,7,10-tetraazacyclododecane] 1, 4,7,10-tetra (2-glutaric) (mixture of the 6 diastereoisomers).
- the sought product is purified by chromatography on silica, eluting with methylene chloride, optionally in admixture with acetone.
- 500 ml of cationic exchange resin in weak acid form are introduced into the cooled solution to neutralize, then after separation of the solid phase, 500 ml of anionic exchange resin in the form of a strong base.
- the resin is separated and introduced into 500 ml of aqueous solution and 6N acetic acid; the final product, passed into solution, is isolated in the form of a powder by evaporation under vacuum of the solvent.
- gadolinium oxide in 30 ml of a solution at a pH of 5.5 to 6 g of 2 g of the preceding octaacid, 0.47 g of gadolinium oxide is introduced and the mixture is kept at 80 ° C for 3 hours, during which the pH is adjusted if necessary.
- the medium is filtered and concentrated to one third and then poured into 100 ml of ethanol.
- the precipitate formed can be purified by treatment with a weak basic resin before further precipitation in ethanol.
- gadolinium chloride the mixture of 6.5 g of octaacid and 3.5 g of GdCI 3 , 6 H 2 O in 130 ml of pH 6.5 is added to the pH 6.5 by adding aqueous NaOH (1N). water, and it is brought to 60 ° C. for 2 hours during which the pH is maintained at 6.5 by adding a total of 21 ml of 1N aqueous NaOH. After a few hours at room temperature, the mixture is concentrated to 25 ml and the final product is precipitated in 250 ml of C 2 H 5 OH before purifying it.
- the solution After returning to room temperature, the solution is poured into 100 ml of ethanol and the precipitate formed is isolated and then dissolved in 100 ml of water to obtain a solution which is subjected to tangential ultrafiltration on a polyethersulfone membrane, the threshold of which cutoff is 1 Kdalton, in a Minisette® cell sold by Filtron® USA.
- the acid can also be suspended in toluene with tricaprylylmethylammonium chloride as catalyst.
- a solution of 1.4 equivalents of hydrazine hydrate in 6 ml of water is introduced into the above phthalimide solution at 70 ° C. After 2 hours of stirring at 90 ° C, the cooled mixture is poured into 125 ml of ethanol. 9 g of precipitate are isolated from which the phthalylhydrazide is separated by precipitation from an aqueous solution at pH 2, before ultrafiltration at pH 6 on a polyamide membrane to remove low-mass impurities. The final hydrochloride is then isolated by lyophilization. Yield 50% from acid chloride.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU47658/00A AU4765800A (en) | 1999-05-21 | 2000-05-19 | Gadolinium complex tetramides and use in medical imaging |
US09/926,589 US6827927B1 (en) | 1999-05-21 | 2000-05-19 | Gadolinium complex tetramides and use in medical imaging |
EP00929648A EP1178975A1 (fr) | 1999-05-21 | 2000-05-19 | Tetramides d'un complexe de gadolinium et application en imagerie medicale |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR99/06517 | 1999-05-21 | ||
FR9906517A FR2793795B1 (fr) | 1999-05-21 | 1999-05-21 | Isomeres de tetramides du complexe de gadolinium de l'acide (1,4,7,10-tetrazacyclododecane)1,4,7,10-tetra(2-glutarique) leur procede de preparation et leur application en imagerie medicale |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000071526A1 true WO2000071526A1 (fr) | 2000-11-30 |
Family
ID=9545901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2000/001382 WO2000071526A1 (fr) | 1999-05-21 | 2000-05-19 | Tetramides d'un complexe de gadolinium et application en imagerie medicale |
Country Status (5)
Country | Link |
---|---|
US (1) | US6827927B1 (fr) |
EP (1) | EP1178975A1 (fr) |
AU (1) | AU4765800A (fr) |
FR (1) | FR2793795B1 (fr) |
WO (1) | WO2000071526A1 (fr) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10307759B3 (de) * | 2003-02-19 | 2004-11-18 | Schering Ag | Trimere makrocyclisch substituierte Benzolderivate, deren Herstellung und Verwendung als Kontrastmittel sowie diese enthaltende pharmazeutische Mittel |
FR2857967A1 (fr) * | 2003-07-25 | 2005-01-28 | Centre Nat Rech Scient | Complexes de lanthanide, leur preparation et leurs utilisations |
WO2006002875A1 (fr) | 2004-07-02 | 2006-01-12 | Bracco Imaging Spa | Agents de contraste dotes d'une relaxivite plus elevee, destines a etre utilises en imagerie par resonance magnetique (mri), contenant une fraction a pouvoir de chelation qui comporte des substituants polyhydroxyles |
FR2891830A1 (fr) * | 2005-10-07 | 2007-04-13 | Guerbet Sa | Composes a chaines aminoalcools courtes et complexes metalliques pour l'imagerie medicale |
DE102007058220A1 (de) | 2007-12-03 | 2009-06-04 | Bayer Schering Pharma Aktiengesellschaft | Dimere macrocyclisch substituierte Benzolderivate |
US8926945B2 (en) | 2005-10-07 | 2015-01-06 | Guerbet | Compounds comprising a biological target recognizing part, coupled to a signal part capable of complexing gallium |
US8986650B2 (en) | 2005-10-07 | 2015-03-24 | Guerbet | Complex folate-NOTA-Ga68 |
US10610608B2 (en) | 2013-08-01 | 2020-04-07 | Rochester Institute Of Technology | Modular imaging agents containing amino acids and peptides |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3091873B1 (fr) * | 2019-01-17 | 2020-12-25 | Guerbet Sa | Complexe de gadolinium et d’un ligand chelateur derive de pcta diastereoisomeriquement enrichi et procede de preparation et de purification |
FR3091872B1 (fr) * | 2019-01-17 | 2020-12-25 | Guerbet Sa | Complexe de gadolinium et d’un ligand chelateur derive de pcta diastereoisomeriquement enrichi et procede de synthese |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0661279A1 (fr) * | 1993-12-30 | 1995-07-05 | Guerbet S.A. | Ligands polyaminés, complexes métalliques, procédé de préparation, applications diagnostiques et thérapeutiques |
FR2736051A1 (fr) * | 1995-06-29 | 1997-01-03 | Guerbet Sa | Complexes metalliques de polyaminoacides, leur procede de preparation et leur utilisation en imagerie diagnostique |
EP0922700A1 (fr) * | 1997-12-10 | 1999-06-16 | Guerbet | Chelates métalliques de dérivés macrocycliques polyaminocarboxyliques et leur application à l'imagerie diagnostique |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1291624B1 (it) * | 1997-04-18 | 1999-01-11 | Bracco Spa | Chelati complessi di metalli paramagnetici a bassa tossicita' |
-
1999
- 1999-05-21 FR FR9906517A patent/FR2793795B1/fr not_active Expired - Fee Related
-
2000
- 2000-05-19 WO PCT/FR2000/001382 patent/WO2000071526A1/fr not_active Application Discontinuation
- 2000-05-19 AU AU47658/00A patent/AU4765800A/en not_active Abandoned
- 2000-05-19 US US09/926,589 patent/US6827927B1/en not_active Expired - Lifetime
- 2000-05-19 EP EP00929648A patent/EP1178975A1/fr not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0661279A1 (fr) * | 1993-12-30 | 1995-07-05 | Guerbet S.A. | Ligands polyaminés, complexes métalliques, procédé de préparation, applications diagnostiques et thérapeutiques |
FR2736051A1 (fr) * | 1995-06-29 | 1997-01-03 | Guerbet Sa | Complexes metalliques de polyaminoacides, leur procede de preparation et leur utilisation en imagerie diagnostique |
WO1997001359A2 (fr) * | 1995-06-29 | 1997-01-16 | Guerbet S.A. | Complexes metalliques de polyaminooxydes et leur utilisation en imagerie diagnostique |
EP0922700A1 (fr) * | 1997-12-10 | 1999-06-16 | Guerbet | Chelates métalliques de dérivés macrocycliques polyaminocarboxyliques et leur application à l'imagerie diagnostique |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10307759B3 (de) * | 2003-02-19 | 2004-11-18 | Schering Ag | Trimere makrocyclisch substituierte Benzolderivate, deren Herstellung und Verwendung als Kontrastmittel sowie diese enthaltende pharmazeutische Mittel |
FR2857967A1 (fr) * | 2003-07-25 | 2005-01-28 | Centre Nat Rech Scient | Complexes de lanthanide, leur preparation et leurs utilisations |
WO2006002875A1 (fr) | 2004-07-02 | 2006-01-12 | Bracco Imaging Spa | Agents de contraste dotes d'une relaxivite plus elevee, destines a etre utilises en imagerie par resonance magnetique (mri), contenant une fraction a pouvoir de chelation qui comporte des substituants polyhydroxyles |
FR2891830A1 (fr) * | 2005-10-07 | 2007-04-13 | Guerbet Sa | Composes a chaines aminoalcools courtes et complexes metalliques pour l'imagerie medicale |
WO2007042506A1 (fr) * | 2005-10-07 | 2007-04-19 | Guerbet | Composés comprenant des chaînes aminoalcool courtes et des complexes métalliques en imagerie médicale |
US8114863B2 (en) | 2005-10-07 | 2012-02-14 | Guerbet | Compounds comprising short aminoalcohol chains and metal complexes for medical imaging |
EP2457914A1 (fr) * | 2005-10-07 | 2012-05-30 | Guerbet | Composés comprenant des chaînes d'amino-alcool courtes et des complexes métalliques pour l'imagerie médicale |
US8926945B2 (en) | 2005-10-07 | 2015-01-06 | Guerbet | Compounds comprising a biological target recognizing part, coupled to a signal part capable of complexing gallium |
US8986650B2 (en) | 2005-10-07 | 2015-03-24 | Guerbet | Complex folate-NOTA-Ga68 |
DE102007058220A1 (de) | 2007-12-03 | 2009-06-04 | Bayer Schering Pharma Aktiengesellschaft | Dimere macrocyclisch substituierte Benzolderivate |
US10610608B2 (en) | 2013-08-01 | 2020-04-07 | Rochester Institute Of Technology | Modular imaging agents containing amino acids and peptides |
Also Published As
Publication number | Publication date |
---|---|
EP1178975A1 (fr) | 2002-02-13 |
FR2793795A1 (fr) | 2000-11-24 |
US6827927B1 (en) | 2004-12-07 |
AU4765800A (en) | 2000-12-12 |
FR2793795B1 (fr) | 2001-08-03 |
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