WO1997010853A2 - Bifunktionelle nicotinamid-chelatbildner vom typ n2s2 für radioaktive isotope - Google Patents
Bifunktionelle nicotinamid-chelatbildner vom typ n2s2 für radioaktive isotope Download PDFInfo
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- WO1997010853A2 WO1997010853A2 PCT/DE1996/001824 DE9601824W WO9710853A2 WO 1997010853 A2 WO1997010853 A2 WO 1997010853A2 DE 9601824 W DE9601824 W DE 9601824W WO 9710853 A2 WO9710853 A2 WO 9710853A2
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- 0 *c(nccc1)c1I=O Chemical compound *c(nccc1)c1I=O 0.000 description 1
- JWGLQVHQUBWDSP-UHFFFAOYSA-N NC(c1cccnc1S)=O Chemical compound NC(c1cccnc1S)=O JWGLQVHQUBWDSP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/575—Hormones
- C07K14/57536—Endothelin, vasoactive intestinal contractor [VIC]
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- 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
-
- 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
- A61K51/0497—Organic compounds conjugates with a carrier being an organic compounds
-
- 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
- A61K51/08—Peptides, e.g. proteins, carriers being peptides, polyamino acids, proteins
- A61K51/088—Peptides, e.g. proteins, carriers being peptides, polyamino acids, proteins conjugates with carriers being peptides, polyamino acids or proteins
-
- 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
- A61K51/08—Peptides, e.g. proteins, carriers being peptides, polyamino acids, proteins
- A61K51/10—Antibodies or immunoglobulins; Fragments thereof, the carrier being an antibody, an immunoglobulin or a fragment thereof, e.g. a camelised human single domain antibody or the Fc fragment of an antibody
- A61K51/1093—Antibodies or immunoglobulins; Fragments thereof, the carrier being an antibody, an immunoglobulin or a fragment thereof, e.g. a camelised human single domain antibody or the Fc fragment of an antibody conjugates with carriers being antibodies
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/81—Amides; Imides
- C07D213/82—Amides; Imides in position 3
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- 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
- C07F13/00—Compounds containing elements of Groups 7 or 17 of the Periodic Table
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
- C07K5/08—Tripeptides
- C07K5/0802—Tripeptides with the first amino acid being neutral
- C07K5/0804—Tripeptides with the first amino acid being neutral and aliphatic
- C07K5/081—Tripeptides with the first amino acid being neutral and aliphatic the side chain containing O or S as heteroatoms, e.g. Cys, Ser
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
- C07K5/10—Tetrapeptides
- C07K5/1002—Tetrapeptides with the first amino acid being neutral
- C07K5/1005—Tetrapeptides with the first amino acid being neutral and aliphatic
- C07K5/1013—Tetrapeptides with the first amino acid being neutral and aliphatic the side chain containing O or S as heteroatoms, e.g. Cys, Ser
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K7/00—Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
- C07K7/04—Linear peptides containing only normal peptide links
- C07K7/14—Angiotensins: Related peptides
Definitions
- the invention relates to new chelating agents containing nicotinamides, pharmaceutical compositions containing these compounds, their use in radiodiagnostics and radiotherapy, processes for the production of these compounds and compositions, and conjugates of these compounds with substances which accumulate selectively in diseased tissue, in particular peptides.
- radiopharmaceuticals for diagnostic and therapeutic purposes has long been known in the field of biological and medical research.
- radiopharmaceuticals are used to represent certain structures such as the skeleton, organs or tissues.
- the diagnostic application presupposes the use of such radioactive agents, which are specific to those after application
- suitable detectors such as scintillation cameras or other suitable recording methods.
- the distribution and relative intensity of the detected radioactive agent characterizes the location of a structure in which the radioactive agent is located and can be the presence of abnormalities in structure and function, pathological
- radiopharmaceuticals can be used as therapeutic agents to irradiate certain pathological tissues or areas. Such treatment requires the production of radioactive therapeutic agents that accumulate in certain structures, tissues or organs. 4
- Ion solutions or normal plasma ions such as Ca2 +, Na + , K + and Mg 2+ .
- radiopharmaceutical agents can contain additional agents known as stabilizers. These keep the radionuclide in a stable form until it has reacted with the ligand.
- stabilizers can include agents known as transfer or auxiliary ligands that are particularly useful in stabilizing and complexing the metal in a well-defined oxidation state until the target ligand complexes the metal via ligand exchange. Examples of this type of auxiliary ligand are
- gluconheptonic acid (including their salts) gluconheptonic acid, tartaric acid, citric acid, or other common ligands, as detailed below.
- Radionuclide is the standard
- Radiopharmaceuticals are shown by first synthesizing the ligand and then reacting it with the metal radionuclide in a suitable manner in order to form a corresponding complex in which the ligand must necessarily be present unchanged after complexation, with the exception of the splitting off of any protective groups or hydrogen ions that may be present. Removal of these groups facilitates coordination of the ligand to the metal ion and thus leads to rapid complexation.
- pertechnetate is first obtained from a nuclide generator and converted into a lower oxidation level by using suitable reducing agents (eg SnCl2, s 2 ° 4 2 ⁇ etc.), which is then converted by a suitable one
- suitable reducing agents eg SnCl2, s 2 ° 4 2 ⁇ etc.
- Chelator is stabilized. Because technetium in a row Complex formation conditions implemented. If, for example, the production of a technetium-99m radiopharmaceutical is desired, the ligand produced is mixed with a pertechnetate solution with the addition of a suitable reducing agent and the corresponding technetium complex is produced under suitable reaction conditions. These complexes are then suitably administered to the patient by injection, inhalation or ingestion.
- the solutions containing the radionuclide can, as in the case of technetium-99m, be obtained from an available Mo-99 / Tc-99m nuclide generator, or can be obtained from a manufacturer, as in the case of rhenium-186.
- the complex formation reaction is carried out at suitable temperatures (e.g. 20 ° -100 ° C) within a few minutes to several hours. In order to ensure complete complex formation, a large excess of more than 100-fold excess to the metal radionuclide) of the ligand produced and a sufficient amount of reducing agent are required for a complete reduction of the radionuclide used.
- Radiopharmaceuticals are made by combining the radionuclide complex, in an amount sufficient for diagnostic or therapeutic use, with pharmacologically acceptable radiological carriers.
- This radiological carrier should have favorable properties for the application of the radiopharmaceutical in the form of an injection, inhalation or ingestion.
- examples of such carriers are HSA, aqueous buffer solutions, for example tris (hydroxymethyl) aminoethane (or their salts), phosphate, citrate, bicarbonate etc., sterile water, physiological saline, isotonic chloride or dicarbonate 6
- Suitable complexing agents for technetium and rhenium isotopes are e.g. cyclic amines as described by Volkert et al. (Appl. Radiol. Isot. 1982, 33; 891) and Troutner et al. (J. Nucl. Med. 1980, 21; 443), but they have the disadvantage that they are often only able to bind technetium-99m in good yields from a pH> 9.
- N2 ⁇ 2 systems (Pillai, M.R.A., Troutner, D.E. et al.; Inorg. Chem. 1990, 29; 1850) are in clinical use.
- Non-cyclic N4 systems such as the major disadvantage of HMPAO is their low complex stability.
- Tc-99m-HMPAO must be used within 30 minutes after it has been marked so that the proportion of decay products that have a different pharmacokinetics and excretion can be kept low.
- radiochemical contaminants make it difficult to identify diseases to be diagnosed. A coupling of these chelates or
- Chelating agents to other substances that accumulate selectively in foci of disease cannot be solved by simple means, so that these are generally distributed nonspecifically in the organism.
- N2S2 chelators such as e.g. Ethylene dicysteine (EC; Verbruggen, AM et al .; J. Nucl. Med. 1992, 33; 551) meet the requirement for adequate stability of the corresponding technetium-99m complex, but only form when the pH of the complexing medium is> 9 Radio diagnostics with a purity greater than 69%.
- N3S systems (Fritzburg, A.; EP-0173424 and EP-0250013) form stable technetium-99m complexes, but must be used to form a uniform radiopharmaceutical
- the efficiency of radionuclides in in vivo diagnostics as well as therapy depends on the specificity and the selectivity of the labeled chelates to the target cell. These properties can be improved by coupling the chelates to biomolecules according to the "drug targeting" principle. Antibodies, their fragments, hormones, growth factors and substrates of receptors and enzymes are suitable biomolecules.
- the British patent application GB 2,109,407 describes the use of radioactively labeled monoclonal antibodies against tumor-associated antigens for tumor diagnosis in vivo. Likewise, direct protein labels via donor groups (amino, amide, thiol, etc.) of the protein (Rhodes, BA et al., J. Nukl. Med.
- the invention is therefore based on the object of stable complex compounds which are coupled or capable of
- Coupling to different selectively enriching compounds are to be made available without their specificity and selectivity being significantly affected.
- the requirements for the use of these compounds in humans with regard to the absorbed radiation dose are to be made available without their specificity and selectivity being significantly affected.
- This object is achieved according to the invention in that new, bifunctional, thiol-substituted nicotinamides containing chelating agents and their coupling products with specifically enriching compounds are made available.
- the invention relates to compounds of the general formula (I)
- M is a radioisotope of Tc or Re and L is a ligand of the general formula (II)
- II general formula (I)
- bifunctional complexing agents which carry both functional groups for binding the desired metal ion and one (other, several) functional group for binding the selectively enriching molecule.
- Such bifunctional ligands enable a specific, chemically defined binding of technetium or rhenium isotopes to a wide variety of biological materials, even if so-called prelabeling is carried out.
- Some chelating agents coupled to monoclonal antibodies eg EP-0247866 and EP-0188256
- fatty acids EP-0200492
- N2S2 systems are used as chelating agents, which are not very suitable due to their low stability. Since both the selectively accumulating substances in their properties, as well as the mechanisms by which they are enriched, are very different, it is still necessary to vary the couplable chelating agent and the physiological requirements of the 10
- Alkoxycarbonyl, amino, aldehyde or alkoxy groups with up to 20 carbon atoms is substituted and / or optionally interrupted and / or substituted by one or more heteroatoms from the series 0, N, S, P, As, Se ,
- R 5 and R ⁇ are the same or different and each represents a hydrogen atom, a branched or unbranched C 1-6 alkyl radical or a sulfur protecting group.
- Preferred compounds of the general formula (I) are distinguished in that R 1 and R 3 are hydrogen atoms.
- Particularly preferred compounds of the general formula (I) are characterized in that R 1 , R 2 and R 3
- R 7 is a hydroxyl, a branched or straight-chain, cyclic or polycyclic C ] _.39 alkoxy, alkenyloxy, polyalkenyloxy, alkynyloxy,
- R 1 and R 3 are the same or different and each represents a hydrogen atom and / or a branched or unbranched C 1-4 alkyl radical or together represent an optionally substituted, saturated or unsaturated, aliphatic or aromatic C3_g cycle,
- R 2 and R 4 are the same or different and each for a hydrogen atom, for a branched or unbranched C ] __g alkyl radical or a radical -CO-R 7 , in which
- R 7 is a hydroxyl, a branched or straight-chain, cyclic or polycyclic C ⁇ _3 Q-alkoxy, alkenyloxy, polyalkenyloxy, alkynyloxy, polyalkynyloxy, aryloxy, alkylaryloxy or arylalkyloxy group, optionally with hydroxy, oxy , Oxo, carboxy, aminocarbonyl,
- Alkoxycarbonyl, amino, aldehyde or alkoxy groups with up to 20 carbon atoms is substituted and / or optionally interrupted and / or substituted by one or more heteroatoms from the series 0, N, S, P, As, Se and optionally together one Form anhydride or represents an N (R a R b ) group, where R a and R ⁇ are the same or different and / or a hydrogen atom, a branched or 12
- R 1 , R 2 and R 3 are hydrogen atoms and R 4 represents a radical -CO-R 7 , in which
- R 7 represents a hydroxyl, a branched or straight-chain, cyclic or polycyclic C] _. 30-alkoxy, alkenyloxy, polyalkenyloxy, alkynyloxy, polyalkynyloxy, aryloxy, alkylaryloxy or arylalkyloxy group, which may optionally be substituted with hydroxy, Oxy, oxo, carboxy, aminocarbonyl, alkoxycarbonyl, amino, aldehyde or alkoxy groups with up to 20 carbon atoms and / or optionally substituted by one or more heteroatoms from the series O, N, S, P, As , Se is interrupted and / or substituted or a
- N is (R a R b ) group, wherein
- R a and R b are the same or different and / or represent a hydrogen atom, a branched or straight-chain, cyclic or polycyclic C ] __3o-alkyl, alkenyl, polyalkenyl, alkynyl, polyalkynyl, aryl, alkylaryl or arylalkyl radical , optionally with hydroxy, oxy, oxo, carboxy, aminocarbonyl,
- Alkoxycarbonyl, amino, aldehyde or alkoxy groups with up to 20 carbon atoms is substituted and / or optionally interrupted and / or substituted by one or more heteroatoms from the series 0, N, S, P, As, Se.
- the invention further relates to conjugates containing a compound of the general formula (I and / or II) and substances which accumulate selectively in diseased tissue, with a Heteroatoms from the series O, N, S, P, As, Se is interrupted and / or substituted or is an N (R a R b ) group, where R a and R b are identical or different and / or a hydrogen atom, a branched or straight-chain, cyclic or polycyclic C ⁇ _30-alkyl, alkenyl, polyalkenyl, alkynyl, polyalkynyl, aryl, alkylaryl or arylalkyl radical, optionally with
- S, P, As, Se is interrupted and / or substituted.
- the invention further relates to the new bifunctional thiol-substituted nicotinamide ligands of the general formula (II)
- conjugates are characterized in that the substances accumulating in the diseased tissue include peptides such as endotheline, partial sequences of endothelin, endothelin analogs, endothelin derivatives, endothelin antagonists or angiotensins, partial sequences of angiotensins, angiotensin analogs, angiotensin derivatives and Angiotensin antagonists mean.
- peptides such as endotheline, partial sequences of endothelin, endothelin analogs, endothelin derivatives, endothelin antagonists or angiotensins, partial sequences of angiotensins, angiotensin analogs, angiotensin derivatives and Angiotensin antagonists mean.
- the peptides have the following sequences
- R 1 and R 3 are the same or different and each represent a hydrogen atom and / or a branched or unbranched C ⁇ - ⁇ -alkyl radical or together an optionally substituted, saturated or unsaturated, aliphatic or aromatic C3_g cycle,
- R 2 and R 4 are the same or different and each represents a hydrogen atom, a branched or unbranched C 1 -C 6 -alkyl radical or a radical -CO-R 7 , in which
- R 7 is a hydroxyl- a branched or straight-chain, cyclic or polycyclic C ⁇ _3 Q -alkoxy-, alkenyloxy-, polyalkenyloxy-,
- Alkynyloxy, polyalkynyloxy, aryloxy, alkylaryloxy or arylalkyloxy group which is optionally substituted with hydroxyl, oxy, oxo, carboxy, aminocarbonyl, alkoxycarbonyl, amino, aldehyde or alkoxy groups having up to 20 carbon atoms and / or optionally interrupted and / or substituted by one or more heteroatoms from the series 0, N, S, P, As, Se and optionally together form a carboxylic anhydride or an N (R a R b ) group, where R a and R b are the same or different and / or a hydrogen atom, a branched or straight-chain, cyclic or Arg-Val-Tyr-Ile-His-Pro-Phe-His-Leu,
- the present invention furthermore further relates to compounds of the general formula (II) 18th
- R 1 , R 2 , R 3 and R 4 have the meaning given above,
- R 1 , R 2 , R 3 , R 4 , R 5 and R 6 have the meaning given in claim 1,
- kits which are used to produce radiopharmaceuticals, consisting of a compound of the general formula (II) or a conjugate according to the invention containing compounds of the general formula (I and / or II) and substances which accumulate selectively in tissues, a Reducing agent and optionally an auxiliary ligand, which are in the dry state or in solution, and one represent polycyclic C ] __3 Q -alkyl, alkenyl, polyalkenyl, alkynyl, polyalkynyl, aryl, alkylaryl or arylalkyl radicals which may be combined with hydroxyl, oxy, oxo, carboxy, aminocarbonyl, alkoxycarbonyl, Amino,
- Aldehyde or alkoxy groups with up to 20 carbon atoms is substituted and / or optionally interrupted and / or substituted by one or more heteroatoms from the series O, N, S, P, As, Se,
- R 5 and R 6 are the same or different and each represents a hydrogen atom, a branched or unbranched C 1 -C 6 -alkyl radical or a sulfur protecting group,
- Antibodies or their fragments are amidic or, in the case of substances containing hydroxyl groups such as fatty alcohols, ester-like or imidic in the case of substances containing aldehyde groups
- the compounds of the general formula (II) according to the invention are prepared by protecting the free thiol function of 2-mercaptonicotinic acid in a manner known per se and then protecting the 20th
- the chelates and chelating agents described in the present invention are thus clearly more suitable for diagnostic and therapeutic purposes than the previously known systems.
- the mild marking conditions are a particular advantage.
- the ligands according to the invention and their coupling products can be labeled on substances which accumulate selectively in diseased tissues at room temperature and at a physiological pH.
- suitable protective groups which can be split off with different reaction conditions depending on the coupling product, always ensures that undesired side reactions cannot occur during the purification of the coupling products. This ensures that no undesired crosslinking reactions or oxidation of free sulfhydryl groups to form disulfides
- the invention also relates to a radiopharmaceutical composition for the non-invasive in vivo presentation of organs, receptors and receptor-containing tissue and / or of atherosclerotic plaques, which contain a compound of the general formula (I) or a conjugate according to the invention containing compounds of the general formula (I and / or II) and contains substances which accumulate selectively in tissues, optionally with the additives customary in galenics, the compound being in a kit with
- Technetium-99m or Re is prepared in the form of a pertechnetate or perrhenate solution.
- the radiopharmaceutical composition is administered to a patient in an amount of 0.1 to 30 mCi, preferably 0.5 to 10 mCi per 70 kg of body weight, and the radiation emitted by the patient is recorded.
- Vascular diseases These derivatives were applied to WHHL rabbits, which have high LDL concentrations in the blood due to a genetic defect in the LDL receptor and thus have atherosclerotic lesions. About 1 to 6 h after application of the derivatives in WHHL rabbits, a high accumulation in atherosclerotic plaques could be demonstrated. So far, only very late stages of atherogenesis have been diagnosed with invasive procedures. The compounds according to the invention therefore offer the decisive advantage of diagnosing much earlier stages of atherosclerosis using a non-invasive method.
- Means are carried out in a manner known per se, in which the Groups of substances that selectively accumulate in diseased tissues.
- the coupling partners include different biomolecules used. So e.g. Ligands attached to specific biomolecules.
- Binding receptors and thus showing changes in receptor density these include Peptides,
- EgF epidermal growth factor
- biomolecules are metabolites that can be introduced into the metabolism of the cells and indicate a changed metabolism; these include e.g. Fatty acids, saccharides, peptides and amino acids. Fatty acids coupled to the less stable N2S2 systems have been described in EP-0200492. Other metabolic products such as saccharides, deoxyglucose, lactate and amino acids (leucine, methyl methionine, glycine) have been used with the help of PET technology to depict changed metabolic processes (R. Weinreich, Swiss Med. 8, 10, 1986). Not even biological substances like
- Misonidazole and its derivatives which irreversibly bind to cell components in tissues or tissue parts with reduced oxygen concentration, can be used for the specific enrichment of radioactive isotopes and thus for the visual representation of tumors or ischemic regions (ME Shelton, 24
- Suitable additives are, for example, physiologically harmless buffers (eg tromethamine), small additions of electrolytes (eg sodium chloride), stabilizers (eg gluconate, phosphates or phosphonates).
- the pharmaceutical composition according to the invention is in the form of a solution or in lyophilized form and is added shortly before application with a solution of Tc-99m pertechnetate, eluted from commercially available Mo / Tc generators, or a perrhenate solution.
- the pharmaceutical compositions according to the invention are dosed in amounts of lxlO -5 to 5xl0 4 nmol / kg body weight, preferably in amounts between lxlO "3 to 5xl0 2 nmol / kg body weight.
- the amount of radioactivity for diagnostic applications is between 0.05 to 50 mCi, preferably 5 to 30 mCi per 70 kg application, for therapeutic applications between 5 and 500 mCi, preferably 10 to 350 mCi.
- the application is normally carried out by intravenous, intraarterial, peritoneal or intertumor injection of 0.1 to 2 ml of a solution of the agents according to the invention, intravenous application is preferred.
- Ge f. C 50, 20 H 4, 35 N 16, 56 S 19, 08 28
- reaction mixture After an incubation time of 10 min, the reaction mixture is examined for the purity of the Tc complex formed by means of HPLC: LiChrospher RP-18 column, 5 ⁇ , 125 x 4.6 mm; Gradient elution from 100% A to 100% B within 15 min (eluent A: acetonitrile / Na phosphate 5 mM, pH 2.0
- M is a radioisotope of Tc or Re and L is a ligand of the general formula (II)
- R 1 and R 3 are the same or different and each represents a hydrogen atom and / or a branched or unbranched C ⁇ - ⁇ -alkyl radical or together an optionally substituted, saturated or unsaturated, aliphatic or aromatic C ⁇ - ⁇ cycle,
- R 2 and R 4 are identical or different and each for a hydrogen atom, for a branched or unbranched C -g-alkyl radical or a radical -CO-R 7 , wherein
- R 7 is a hydroxyl, a branched or straight-chain, cyclic or polycyclic C ⁇ _3n- alkoxy, alkenyloxy, polyalkenyloxy, mg of compound 12 are dissolved in 1.0 ml of ethanol. 50 ul of this ligand solution are mixed with 100 ul ethanol, 150 ul phosphate buffer pH 8.5, 50 ul of a deoxygenated aqueous citrate solution (50 mg / ml), 2.5 ul of a deoxygenated tin (II) chloride solution (5 mg / ml 0.1 N HCl) and 100 ⁇ l of a pertechnetate solution (400-1000 ⁇ Ci) are added.
- the reaction mixture is examined for the purity of the Tc complex formed by means of HPLC: LiChrospher RP-18 column, 5 ⁇ , 125 x 4.6 mm; Gradient elution from 100% A to 100% B within 15 min (eluent A: acetonitrile / sodium phosphate 5 mM, pH 2.0 (10/90); eluent B: acetonitrile / sodium phosphate 5 mM, pH 2.0 (75/25); 1 ml / min.
- the radiochemical purity is> 94%.
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Abstract
Description
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Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU13005/97A AU1300597A (en) | 1995-09-21 | 1996-09-19 | N2s2-type bi-functional nicotinamide chelating agents for radioactive isotopes |
| EP96944563A EP0851771A2 (de) | 1995-09-21 | 1996-09-19 | Bifunktionelle nicotinamid-chelatbildner vom typ n2s2 für radioaktive isotope |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1995136783 DE19536783A1 (de) | 1995-09-21 | 1995-09-21 | Bifunktionelle Nicotinamid-Chelatbildner vom Typ N¶2¶S¶2¶ für radioaktive Isotope |
| DE19536783.9 | 1995-09-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1997010853A2 true WO1997010853A2 (de) | 1997-03-27 |
| WO1997010853A3 WO1997010853A3 (de) | 1997-08-28 |
Family
ID=7773890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE1996/001824 Ceased WO1997010853A2 (de) | 1995-09-21 | 1996-09-19 | Bifunktionelle nicotinamid-chelatbildner vom typ n2s2 für radioaktive isotope |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0851771A2 (de) |
| AU (1) | AU1300597A (de) |
| CA (1) | CA2232340A1 (de) |
| DE (1) | DE19536783A1 (de) |
| WO (1) | WO1997010853A2 (de) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999012579A1 (en) * | 1997-09-08 | 1999-03-18 | The General Hospital Corporation | Imaging agents for early detection and monitoring of cardiovascular plaque |
| WO1998024482A3 (de) * | 1996-12-04 | 1999-04-01 | Schering Ag | Verwendung von endothelin-konjugaten in der therapie, neue endothelin-konjugate, diese enthaltende mittel, sowie verfahren zu deren herstellung |
| US6388062B1 (en) | 1998-05-08 | 2002-05-14 | The Wistar Institute Of Anatomy And Biology | Modified p53 tetramerization domains having hydrophobic amino acid substitutions |
| WO2003000657A1 (en) * | 2001-06-20 | 2003-01-03 | Daiichi Pharmaceutical Co., Ltd. | Diamine derivatives |
| WO2003000680A1 (en) * | 2001-06-20 | 2003-01-03 | Daiichi Pharmaceutical Co., Ltd. | Diamine derivatives |
| WO2003016302A1 (en) * | 2001-08-09 | 2003-02-27 | Daiichi Pharmaceutical Co., Ltd. | Diamine derivatives |
| WO2004058715A1 (ja) * | 2002-12-25 | 2004-07-15 | Daiichi Pharmaceutical Co., Ltd. | ジアミン誘導体 |
| US7060251B1 (en) | 1997-09-08 | 2006-06-13 | The General Hospital Corporation | Imaging agents for early detection and monitoring of cardiovascular plaque |
| JP2007070369A (ja) * | 2002-12-25 | 2007-03-22 | Dai Ichi Seiyaku Co Ltd | ジアミン誘導体 |
| CN1751025B (zh) * | 2002-12-25 | 2010-05-12 | 第一制药株式会社 | 二胺衍生物 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3875400A (en) * | 1999-03-12 | 2000-09-28 | Government of The United States of America, as represented by The Secretary Department of Health & Human Services, The National Institutes of Health, The | Hydrazide inhibitors of hiv-1 integrase |
| US7785566B2 (en) | 2003-11-06 | 2010-08-31 | Ge Healthcare, Inc. | Pharmaceutical compounds |
| FR3142479A1 (fr) * | 2022-11-30 | 2024-05-31 | L'oreal | Procédé de préparation d’un ou plusieurs composés de type thiopyridinones |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0403243B1 (de) * | 1989-06-16 | 1995-11-08 | Merck Frosst Canada Inc. | Chelat-Derivate von atrialnatriurethischem Faktor (ANF) |
| WO1993015771A1 (en) * | 1992-02-06 | 1993-08-19 | Mallinckrodt Medical, Inc. | Ligands for improving metal chelate formation kinetics |
| US5716596A (en) * | 1992-06-23 | 1998-02-10 | Diatide, Inc. | Radioactively labeled somatostatin-derived peptides for imaging and therapeutic uses |
| AU5537994A (en) * | 1992-10-22 | 1994-05-09 | Mallinckrodt Medical, Inc. | Therapeutic treatment for inhibiting vascular restenosis |
| DE4301871A1 (de) * | 1993-01-13 | 1994-07-14 | Diagnostikforschung Inst | Neue Mittel zur Diagnose von Gefäßerkrankungen |
| US5574140A (en) * | 1993-09-03 | 1996-11-12 | Resolution Pharmaceutical Inc. | Hydrazino-type N2 S2 chelators |
| ATE237366T1 (de) * | 1994-01-24 | 2003-05-15 | Neorx Corp | Radioaktiv-markierte annexine |
| DE69515302T2 (de) * | 1994-05-19 | 2000-07-06 | Neorx Corp., Seattle | Aromatische aminsubstituierte liganden mit verbrückten stickstoff-und schwefeldonatoratomen für bildformung |
-
1995
- 1995-09-21 DE DE1995136783 patent/DE19536783A1/de not_active Withdrawn
-
1996
- 1996-09-19 WO PCT/DE1996/001824 patent/WO1997010853A2/de not_active Ceased
- 1996-09-19 EP EP96944563A patent/EP0851771A2/de not_active Withdrawn
- 1996-09-19 AU AU13005/97A patent/AU1300597A/en not_active Abandoned
- 1996-09-19 CA CA 2232340 patent/CA2232340A1/en not_active Abandoned
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998024482A3 (de) * | 1996-12-04 | 1999-04-01 | Schering Ag | Verwendung von endothelin-konjugaten in der therapie, neue endothelin-konjugate, diese enthaltende mittel, sowie verfahren zu deren herstellung |
| US7060251B1 (en) | 1997-09-08 | 2006-06-13 | The General Hospital Corporation | Imaging agents for early detection and monitoring of cardiovascular plaque |
| WO1999012579A1 (en) * | 1997-09-08 | 1999-03-18 | The General Hospital Corporation | Imaging agents for early detection and monitoring of cardiovascular plaque |
| US6388062B1 (en) | 1998-05-08 | 2002-05-14 | The Wistar Institute Of Anatomy And Biology | Modified p53 tetramerization domains having hydrophobic amino acid substitutions |
| US7365205B2 (en) | 2001-06-20 | 2008-04-29 | Daiichi Sankyo Company, Limited | Diamine derivatives |
| JP2008143905A (ja) * | 2001-06-20 | 2008-06-26 | Daiichi Sankyo Co Ltd | ジアミン誘導体 |
| WO2003000680A1 (en) * | 2001-06-20 | 2003-01-03 | Daiichi Pharmaceutical Co., Ltd. | Diamine derivatives |
| US7342014B2 (en) | 2001-06-20 | 2008-03-11 | Daiichi Pharmaceutical Co., Ltd. | Diamine derivatives |
| RU2319699C2 (ru) * | 2001-06-20 | 2008-03-20 | Дайити Санкио Компани, Лимитед | Производные диаминов |
| WO2003000657A1 (en) * | 2001-06-20 | 2003-01-03 | Daiichi Pharmaceutical Co., Ltd. | Diamine derivatives |
| CN100545160C (zh) | 2001-08-09 | 2009-09-30 | 第一制药株式会社 | 二胺衍生物 |
| WO2003016302A1 (en) * | 2001-08-09 | 2003-02-27 | Daiichi Pharmaceutical Co., Ltd. | Diamine derivatives |
| RU2314303C2 (ru) * | 2001-08-09 | 2008-01-10 | Дайити Фармасьютикал Ко., Лтд. | Производные диамина |
| JP2007070369A (ja) * | 2002-12-25 | 2007-03-22 | Dai Ichi Seiyaku Co Ltd | ジアミン誘導体 |
| RU2333203C2 (ru) * | 2002-12-25 | 2008-09-10 | Дайити Фармасьютикал Ко., Лтд. | Диаминовые производные |
| US7576135B2 (en) | 2002-12-25 | 2009-08-18 | Daiichi Pharmaceutical Co., Ltd. | Diamine derivatives |
| WO2004058715A1 (ja) * | 2002-12-25 | 2004-07-15 | Daiichi Pharmaceutical Co., Ltd. | ジアミン誘導体 |
| CN1751025B (zh) * | 2002-12-25 | 2010-05-12 | 第一制药株式会社 | 二胺衍生物 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1997010853A3 (de) | 1997-08-28 |
| EP0851771A2 (de) | 1998-07-08 |
| AU1300597A (en) | 1997-04-09 |
| DE19536783A1 (de) | 1997-03-27 |
| CA2232340A1 (en) | 1997-03-27 |
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