WO2006051341A1 - Isotopically marked quinoline derivatives as adenosin a3 receptor ligands - Google Patents
Isotopically marked quinoline derivatives as adenosin a3 receptor ligands Download PDFInfo
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- WO2006051341A1 WO2006051341A1 PCT/HU2005/000120 HU2005000120W WO2006051341A1 WO 2006051341 A1 WO2006051341 A1 WO 2006051341A1 HU 2005000120 W HU2005000120 W HU 2005000120W WO 2006051341 A1 WO2006051341 A1 WO 2006051341A1
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- branched
- straight
- general formula
- alkyl group
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- 239000003446 ligand Substances 0.000 title abstract description 5
- OIRDTQYFTABQOQ-KQYNXXCUSA-N adenosine Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](CO)[C@@H](O)[C@H]1O OIRDTQYFTABQOQ-KQYNXXCUSA-N 0.000 title description 44
- 229940027991 antiseptic and disinfectant quinoline derivative Drugs 0.000 title description 2
- 125000002943 quinolinyl group Chemical class N1=C(C=CC2=CC=CC=C12)* 0.000 title 1
- 150000001875 compounds Chemical class 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000002360 preparation method Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 15
- -1 methylenedioxy group Chemical group 0.000 claims description 24
- 125000000217 alkyl group Chemical group 0.000 claims description 16
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 14
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 11
- 125000005843 halogen group Chemical group 0.000 claims description 11
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 125000003545 alkoxy group Chemical group 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 125000001072 heteroaryl group Chemical group 0.000 claims description 8
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims description 8
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 claims description 8
- 125000001544 thienyl group Chemical group 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 6
- KXDAEFPNCMNJSK-UHFFFAOYSA-N benzene carboxamide Natural products NC(=O)C1=CC=CC=C1 KXDAEFPNCMNJSK-UHFFFAOYSA-N 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 125000002541 furyl group Chemical group 0.000 claims description 6
- 239000011541 reaction mixture Substances 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052763 palladium Inorganic materials 0.000 claims description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- VDQQXEISLMTGAB-UHFFFAOYSA-N chloramine T Chemical compound [Na+].CC1=CC=C(S(=O)(=O)[N-]Cl)C=C1 VDQQXEISLMTGAB-UHFFFAOYSA-N 0.000 claims description 4
- 239000003480 eluent Substances 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 4
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 4
- 235000011056 potassium acetate Nutrition 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- COIOYMYWGDAQPM-UHFFFAOYSA-N tris(2-methylphenyl)phosphane Chemical compound CC1=CC=CC=C1P(C=1C(=CC=CC=1)C)C1=CC=CC=C1C COIOYMYWGDAQPM-UHFFFAOYSA-N 0.000 claims description 4
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 3
- 239000005864 Sulphur Substances 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- REDSKZBUUUQMSK-UHFFFAOYSA-N tributyltin Chemical compound CCCC[Sn](CCCC)CCCC.CCCC[Sn](CCCC)CCCC REDSKZBUUUQMSK-UHFFFAOYSA-N 0.000 claims description 3
- 125000005913 (C3-C6) cycloalkyl group Chemical group 0.000 claims description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 2
- 125000002941 2-furyl group Chemical group O1C([*])=C([H])C([H])=C1[H] 0.000 claims description 2
- 125000000175 2-thienyl group Chemical group S1C([*])=C([H])C([H])=C1[H] 0.000 claims description 2
- 125000003682 3-furyl group Chemical group O1C([H])=C([*])C([H])=C1[H] 0.000 claims description 2
- 125000001541 3-thienyl group Chemical group S1C([H])=C([*])C([H])=C1[H] 0.000 claims description 2
- 230000005526 G1 to G0 transition Effects 0.000 claims description 2
- 229910001854 alkali hydroxide Inorganic materials 0.000 claims description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 150000007529 inorganic bases Chemical class 0.000 claims description 2
- 150000007530 organic bases Chemical class 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 claims description 2
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 claims description 2
- 150000002978 peroxides Chemical class 0.000 claims description 2
- QAHVHSLSRLSVGS-UHFFFAOYSA-N sulfamoyl chloride Chemical compound NS(Cl)(=O)=O QAHVHSLSRLSVGS-UHFFFAOYSA-N 0.000 claims description 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 2
- 239000002585 base Substances 0.000 claims 2
- 238000004007 reversed phase HPLC Methods 0.000 claims 2
- 125000004207 3-methoxyphenyl group Chemical group [H]C1=C([H])C(*)=C([H])C(OC([H])([H])[H])=C1[H] 0.000 claims 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims 1
- 238000002955 isolation Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 125000005270 trialkylamine group Chemical group 0.000 claims 1
- 238000000825 ultraviolet detection Methods 0.000 claims 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052740 iodine Inorganic materials 0.000 abstract description 7
- 239000011630 iodine Substances 0.000 abstract description 7
- 239000000543 intermediate Substances 0.000 abstract description 4
- 239000005557 antagonist Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 28
- 102000005962 receptors Human genes 0.000 description 28
- 108020003175 receptors Proteins 0.000 description 28
- 239000002287 radioligand Substances 0.000 description 22
- 239000002126 C01EB10 - Adenosine Substances 0.000 description 21
- 229960005305 adenosine Drugs 0.000 description 21
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 16
- 102000009346 Adenosine receptors Human genes 0.000 description 14
- 108050000203 Adenosine receptors Proteins 0.000 description 14
- 230000027455 binding Effects 0.000 description 13
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 239000000872 buffer Substances 0.000 description 12
- 210000004027 cell Anatomy 0.000 description 10
- 239000012528 membrane Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 8
- 229910001629 magnesium chloride Inorganic materials 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- QKNYBSVHEMOAJP-UHFFFAOYSA-N 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydron;chloride Chemical compound Cl.OCC(N)(CO)CO QKNYBSVHEMOAJP-UHFFFAOYSA-N 0.000 description 7
- 238000011534 incubation Methods 0.000 description 7
- 101710169336 5'-deoxyadenosine deaminase Proteins 0.000 description 5
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- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 5
- RIRGCFBBHQEQQH-SSFGXONLSA-N (-)-n6-(2-phenylisopropyl)adenosine Chemical compound C([C@@H](C)NC=1C=2N=CN(C=2N=CN=1)[C@H]1[C@@H]([C@H](O)[C@@H](CO)O1)O)C1=CC=CC=C1 RIRGCFBBHQEQQH-SSFGXONLSA-N 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
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- 239000000047 product Substances 0.000 description 4
- 125000000229 (C1-C4)alkoxy group Chemical group 0.000 description 3
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical class N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 3
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- CTAPFRYPJLPFDF-UHFFFAOYSA-N isoxazole Chemical compound C=1C=NOC=1 CTAPFRYPJLPFDF-UHFFFAOYSA-N 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- KYYLEMJRBIDGSG-UHFFFAOYSA-N n-[3-cyano-6-iodo-4-(thiophen-2-ylmethylamino)quinolin-2-yl]-4-methoxybenzamide Chemical compound C1=CC(OC)=CC=C1C(=O)NC1=NC2=CC=C(I)C=C2C(NCC=2SC=CC=2)=C1C#N KYYLEMJRBIDGSG-UHFFFAOYSA-N 0.000 description 1
- IXBDEGGYYXHTMR-UHFFFAOYSA-N n-[4-(benzylamino)-3-cyano-6-iodoquinolin-2-yl]-4-methoxybenzamide Chemical compound C1=CC(OC)=CC=C1C(=O)NC1=NC2=CC=C(I)C=C2C(NCC=2C=CC=CC=2)=C1C#N IXBDEGGYYXHTMR-UHFFFAOYSA-N 0.000 description 1
- WBZZJHBXJUIJMU-UHFFFAOYSA-N n-[4-(benzylamino)-3-cyano-6-tributylstannylquinolin-2-yl]-4-methoxybenzamide Chemical compound N#CC1=C(NCC=2C=CC=CC=2)C2=CC([Sn](CCCC)(CCCC)CCCC)=CC=C2N=C1NC(=O)C1=CC=C(OC)C=C1 WBZZJHBXJUIJMU-UHFFFAOYSA-N 0.000 description 1
- 210000001577 neostriatum Anatomy 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000003395 phenylethylamino group Chemical group [H]N(*)C([H])([H])C([H])([H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical compound C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000002464 receptor antagonist Substances 0.000 description 1
- 229940044551 receptor antagonist Drugs 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 210000000329 smooth muscle myocyte Anatomy 0.000 description 1
- 239000012453 solvate Substances 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000009870 specific binding Effects 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 230000000946 synaptic effect Effects 0.000 description 1
- 230000005062 synaptic transmission Effects 0.000 description 1
- 229910052722 tritium Inorganic materials 0.000 description 1
- 230000006442 vascular tone Effects 0.000 description 1
- 230000024883 vasodilation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
- C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
- C07D215/16—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms 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
- C07D215/20—Oxygen atoms
- C07D215/24—Oxygen atoms attached in position 8
- C07D215/26—Alcohols; Ethers thereof
- C07D215/28—Alcohols; Ethers thereof with halogen atoms or nitro radicals in positions 5, 6 or 7
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
- C07D409/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
- C07D409/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/47—Quinolines; Isoquinolines
-
- 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
- A61K51/041—Heterocyclic compounds
- A61K51/044—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine, rifamycins
- A61K51/0455—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine, rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
- C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
- C07D215/16—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms 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
- C07D215/48—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
- C07D215/54—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen attached in position 3
-
- 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
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
- C07F7/22—Tin compounds
- C07F7/2208—Compounds having tin linked only to carbon, hydrogen and/or halogen
Definitions
- the present invention relates to adenozin A 3 receptor ligands labeled with iodine isotops of mass number 125, within those favourably to antagonists and their isomers, to the experimental materials containing them, to a process for the preparation of the compounds of the general formula (I)
- Adenosine is a well-known component of several endogenous molecules (ATP, NAD + , nucleic acids). Besides, it plays an important regulatory role in many physiological processes. The effect of adenosine on heart function was discovered already in 1929. (Drury and Szentgy ⁇ rgyi, J Physiol 68:213, 1929). The identification of an increasing number of physiological functions mediated by adenosine and the discovery of new adenosine receptor subtypes give possibilities for therapeutic application of specific ligands (Poulse, S. A. and Quinn, R. J. Bioorganic and Medicinal Chemistry 6:619, 1998).
- the receptors for adenosine have been classified into three main classes: Ai, A 2 and A 3 .
- the Ai subtype is partly responsible for inhibiting the adenylate cyclase by coupling to Gj membrane protein, partly influences other second messenger systems.
- the A 2 receptor subtype can be subdivided into two further subtypes - A 2a and A 2b -, which receptors stimulate the adenylate cyclase activity.
- the sequence of adenosine A 3 receptors have been recently identified from rat testis cDNA library. Later it was proved that it corresponds to a novel, functional adenosine receptor.
- the activation of the A 3 receptors is connected also with several second- messenger systems: inhibiting of adenylate cyclase, stimulating phospholipase C and D.
- the adenosine receptors are found in several organs and regulate their functions. Both Ai and A 2a receptors play important roles in the central nervous system and cardiovascular system. In the CNS, the adenosine inhibits the release of synaptic transmitters which effect is mediated by Ai receptors. In the heart, also the Ai receptors mediate the negative inotropic, chronotropic and dromotropic effects of adenosine.
- the adenosine A 2a receptors which located relatively in a higher amount in the striatum, display a functional interaction with dopamine receptors in regulating the synaptic transmission.
- the A 2a adenosine receptors on endothelial and smooth muscle cells are responsible for adenosine-induced vasodilation.
- the A 2b adenosine receptors are widely distributed in different tissues. They have been identified almost in every cell type, but its expression is the highest in the intestine and the bladder. This subtype probably also has important regulatory function in the regulation of the vascular tone and plays a role in the function of mast cells.
- a 3 adenosine receptors are rather low comparing to other subtypes and highly species dependent.
- a 3 adenosine receptors are expressed primarily in the central nervous system, testis, immun system and appear to be involved in the modulation of mediator release from mast cells in immediate hypersensitivity reaction.
- Our present invention relates to the compounds of the general formula (I) labeled with iodo isotops of mass number 125, and to their salts, solvates and isomers, which have great selectivity for the A 3 sub-type of the adenosine receptor.
- the [ H]-MRE 3008-F20 adenosine A 3 receptor antagonist radioligand is known from the literature. (P. G. Baraldi, Bioorganic and Medicinal Chemistry Letters, 10, 209-211, 2000). Also known is the [ 3 H]PSB-I l A 3 receptor antagonist radioligand (CH. M ⁇ ller, Bioorganic and Medicinal Chemistry Letters, 12, 501-503, 2002).
- R 1 stands for hydrogen atom or a straight or branched C 1-4 alkyl group, or a C 3-6 cycloalkyl group, or a phenyl group, thienyl group, or furyl group, optionally substituted with one or more straight or branched C 1 - 4 alkyl group, straight or branched C 1-4 alkoxy group, or halogen atom, or for a 5- or 6-membered heteroaromatic ring -containing one, two or three nitrogen atoms-, or for a 5-membered heteroaromatic ring - containing one nitrogen atom and one oxygen atom or one nitrogen atom and one sulphur atom- optionally substituted with one or more straight or branched C 1 . 4 alkyl group, straight or branched C 1-4 alkoxy group, or halogen atom;
- R 2 stands for hydrogen atom or for a straight or branched Cj -4 alkyl group, or for a phenyl-, benzyl-, thienyl- or furyl-group -optionally substituted with a methylenedioxy group, or one or more straight or branched Ci -4 alkyl group, or straight or branched C 1-4 alkoxy-, hydroxyl-, trifluoromethyl- or cyano-group, or halogen atom-, or for a 5- or 6- membered heteroaromatic ring -containing one, two or three nitrogen atoms, or one nitrogen atom and one oxygen atom, or one nitrogen atom and one sulphur atom -optionally substituted with one or more straight or branched Ci -4 alkyl group, straight or branched Ci -4 alkoxy group, or halogen atom.
- Ci -4 alkyl group we mean methyl-, ethyl-, propyl-, isopropyl-, butyl-, isobutyl-, secondary-butyl-, tert.-butyl-, preferably ethyl- or methyl group.
- Ci -4 alkoxy group we mean methoxy-, ethoxy-, propoxy-, isopropoxy-, butoxy-, isobutoxy-, sec.-butoxy-, tert.-butoxy-, preferably ethoxy- or methoxy group.
- C 3 .. 6 cycloalkyl group we mean cyclopropyl-, cyclobutyl-, cyclopentyl- or cyclohexyl group.
- the heteroaromatic ring containing one or two or three nitrogen atoms may mean pyrrole, imidazole, pyrazole, 1,2,3-triazole, 1 ,2,4-triazole, pyridine, pyrimidine, pyridazine, pyrazine and 1,3,4-triazine ring.
- the ring is optionally substituted with a Ci -4 alkyl, or alkoxy group or by a halogen atom.
- the heteroaromatic ring containing one nitrogen atom and one oxygen or one sulphur atom means oxazole, isoxazole, thiazole, isothiazole ring.
- the ring is optionally substituted with a Ci -4 alkyl, or alkoxy group or by a halogen atom.
- R 1 stands for phenyl-, thienyl- or furyl group
- R 2 stands for 4-methoxyphenyl-, 3-methylphenyl-, 3-methoxyphenyl-,
- the compounds of the general formula (I) are prepared by reacting the appropriate compounds of the general formula (II) with unsupported [ I]NaI, in the presence of an oxidant.
- the reaction is carried out in aqueous methanolic medium (pH 3), at room temperature.
- peroxides for example hydrogen peroxide, N- halogeno-succinamides e.g. JV-chloro-succinamide, or chlorosulphonamides, preferably chloramine-T
- oxidizing agents for example hydrogen peroxide, N- halogeno-succinamides e.g. JV-chloro-succinamide, or chlorosulphonamides, preferably chloramine-T
- the product is purified by reversed-phase high-performance liquid chromatographic (RP-HPLC) method using silica gel based Ci 8 modified packing as stationary phase and methanol-water binary mixture containing 0.1% (v/v) trifluoroacetic acid as eluent system, with flow rate of 0.9 ml/min. Detection is carried out by UV at 272 nm; detection of radioactivity is carried out by flow liquid scintillation method.
- RP-HPLC reversed-phase high-performance liquid chromatographic
- R 1 and R 2 have the meanings as defined above and X stands for iodo- or bromo atom- by reacting it in the presence of palladium catalyst, organic or inorganic base and organic solvent, with a hexaalkyl-distannane compound.
- the product of general formula (II) is isolated.
- the exchange of the halogen atom for trialkyl-stannyl group is carried out in an organic solvent, for example in dioxane or dimethylformamide, or favourably in N- methyl-2-pyrrolidone.
- the reaction can be performed in a wide temperature range, preferably between 2O 0 C - 100 0 C.
- organic base trialkylamines preferably triethylamine can be applied.
- inorganic base alkali hydroxides carbonates and acetates, preferably potassium acetate can be used.
- palladium acetate palladium chloride or tetrakis(triphenylphosphine)palladium(0) catalysts can be used (Z.P. Zhuang. M.P. Kung, C. Hou, D.M. Skovronsky, T.L. Gur, K. Plossl, J.Q. Trojanowski, V.M.Y. Lee, H.F. Kung, J. Med. Chem.
- R 1 stands for phenyl group
- R 2 stands for 4- methoxyphenyl group.
- the united toluene phase is dried over sodium sulfate, filtered and evaporated under reduced pressure.
- the residue is chromatographed on a silicagel coloumn using chloroform - ethyl acetate (10 : 0.5) mixture as eluent. After evaporation of the pure fractions 250 mg of the title compound is obtained.
- R stands for thienyl group
- R stands for 4- methoxyphenyl group.
- N-(6-tributylstannyl-4- [2-thienylmethylamino] -3 -cyanoquinolin-2- yl)benzamide are added 25 ⁇ l (1.1 nmol) of 1% (v/v) methanolic solution of trifluoroacetic acid and 70 MBq [ 125 I]NaI solution (21 ⁇ l).
- To the reaction mixture 5 ⁇ l (2 nmol) of 0.1 mg/ml aqueous solution of chloramine-T is added and the mixture is stirred at room temperature for 15 minutes. After the incubation period the reaction is stopped by the addition of 7 ⁇ l (3.5 nmol) of 0.1 mg/ml sodium pyrosulfite solution and the product is immediately purified by RP-HPLC method, while applying UV and radioactivity detection.
- the united toluene phase is dried over sodium sulfate, filtered and evaporated under reduced pressure.
- the residue is chromatographed on a silicagel coloumn using chloroform - ethyl acetate (10 : 0.5) mixture as eluent. By evaporating the pure fractions 235 mg of the title compound is obtained.
- Preparing membrane suspension collect ovarium cells of cloned Chinese hamster expressing human Ai receptors (further: CHOhAi), wash them three times with PBS, centrifuge (1000 x g 10 min.) and homogenize (B.Braun Potter S) at 1500/min rotation speed. Buffer: 50 mM Tris HCl, pH 7,4. Centrifuge this homogenized mixture (43.000 g, 10 min), suspense the pellet in the above buffer with adjustment of the protein concentration to 5 mg/mL (Bradford method) and complete with 2 U/mL ADA.
- Binding protocol incubate CHO-hAi membrane preparation (50 ⁇ g protein content), in the presence of the test compound and 10 nM [ 3 H]CCPA (2-chloro-N 6 -cyclopenthyl-adenosine) (80.000 dpm) in incubation buffer (50 mM Tris HCl, pH 7.4, 2 U/mL adenosine deaminase).
- the non-specific binding is defined in the presence of 10 ⁇ M R-PIA (N 6 -[L-2- phenylisopropyl] adenosine) in a total volume of 100 ⁇ L for 3 hr at room temperature.
- Binding protocol incubate 20.8 ⁇ g of membranes (human A 2 b adenosine receptors transfected into HEK-293 cells, source: Receptor Biology, Inc.), in the presence of the test compound and 32.4 nM [ 3 H]DPCPX (8-cyclopenthyl-l,3-dipropylxanthine) (800.000 dpm) in incubation buffer (50 niM Tris-HCl, 10 niM MgCl 2 , 1 mM EDTA, 0.1 mM benzamidine, 2 U/mL adenosine deaminase, pH 6.5).
- Preparing membrane suspension collect ovarium cells of cloned Chinese hamster expressing human A 3 receptors (further: CHO-IiA 3 ), wash them three times with PBS, centrifuge (1000 x g 10 min.) and homogenize (B.Braun Potter S) at 1500/min rotation speed. Buffer: 50 mM Tris, 1OmM MgCl 2 , 1 mM EDTA, pH 8.0. Centrifuge this homogenized mixture (43.000 g, 10 min), suspense the pellet in the above buffer with adjustment of the protein concentration to 0.1 mg/mL (Bradford method) and complete with 2 U/mL ADA.
- the dissociation constant (K D ) of the new radioligand of Example 2/a on CHO-IiA 3 membrane preparation is determined.
- K D dissociation constant
- Figure 1 Scatchard saturation curve of the new radioligand of Example 2/a in the presence of CHO-hA. 3 membrane preparation
- Example 2/b i.e. of the un-labeled analogue of the new radioligand of
- Example 2/a were calculated on the basis of the IC 50 values.
- the reference compounds exhibited similar affinity values in the presence of the known and of the new radoligands, proving the suitability of the radioligand of Example
Abstract
Description
Claims
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
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AU2005303544A AU2005303544B2 (en) | 2004-11-15 | 2005-11-09 | Isotopically marked quinoline derivatives as adenosin A3 receptor ligands |
EP05806497A EP1814857B1 (en) | 2004-11-15 | 2005-11-09 | Isotopically marked quinoline derivatives as adenosin a3 receptor ligands |
CN2005800388317A CN101056859B (en) | 2004-11-15 | 2005-11-09 | Quinoline derivatives as isotope labeling for adenosine a3 receptor ligand |
BRPI0517816-9A BRPI0517816A (en) | 2004-11-15 | 2005-11-09 | isotopically labeled quinoline derivatives as adenosine α3 receptor ligands |
JP2007540727A JP2008519816A (en) | 2004-11-15 | 2005-11-09 | Isotopically labeled quinoline derivatives as adenosine A3 receptor ligands |
AT05806497T ATE479660T1 (en) | 2004-11-15 | 2005-11-09 | ISOTOPICALLY LABELED QUINOLINE DERIVATIVES AS LIGANDS OF THE ADENOSINE A3 RECEPTOR |
CA002588073A CA2588073A1 (en) | 2004-11-15 | 2005-11-09 | Isotopically marked quinoline derivatives as adenosin a3 receptor ligands |
MX2007005768A MX2007005768A (en) | 2004-11-15 | 2005-11-09 | Isotopically marked quinoline derivatives as adenosin a3 receptor ligands. |
DE602005023334T DE602005023334D1 (en) | 2004-11-15 | 2005-11-09 | ISOTOPENMARKED CHINOLINE DERIVATIVES AS LIGANDS OF THE ADENOSINE A3 RECEPTOR |
IL182971A IL182971A0 (en) | 2004-11-15 | 2007-05-03 | Isotopically marked quinoline derivatives as adenosin a3 receptor ligands |
US11/748,098 US7964731B2 (en) | 2004-11-15 | 2007-05-14 | Isotopically marked quinoline derivatives as adenosin A3 receptor ligands |
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HU0402371A HUP0402371A2 (en) | 2004-11-15 | 2004-11-15 | Novel 125-i-labeled amino-quinoline derivatives |
HUP0402371 | 2004-11-15 |
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JP (1) | JP2008519816A (en) |
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CN (1) | CN101056859B (en) |
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DE (1) | DE602005023334D1 (en) |
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Non-Patent Citations (3)
Title |
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BARALDI P G P G ET AL: "Synthesis and preliminary biological evaluation of [<3>H]-MRE 3008-F20: the first high affinity radioligand antagonist for the human A3 adenosine receptors", BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, OXFORD, GB, vol. 10, no. 3, February 2000 (2000-02-01), pages 209 - 211, XP004188818, ISSN: 0960-894X * |
DRURY; SZENTGY6RGYI, J PHYSIOL, vol. 68, no. 213, 1929 |
MÜLLER ET AL.: "[3H]8-ethyl-4-methyl-2-phenyl-(8R)-4,5,7,8-tetrahydro-1H-imidazo[2,1-i]-purin-5-one ([3H]PSB-11), a Novel High-Affinity Antagonist Radioligand for Human A3 Adenosine Receptors", BIOORG. MED. CHEM. LETT., vol. 12, 2002, pages 501 - 503, XP002367060 * |
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KR20070084202A (en) | 2007-08-24 |
MX2007005768A (en) | 2007-07-16 |
IL182971A0 (en) | 2007-08-19 |
EP1814857A1 (en) | 2007-08-08 |
BRPI0517816A (en) | 2008-10-21 |
US20080027225A1 (en) | 2008-01-31 |
DE602005023334D1 (en) | 2010-10-14 |
RU2007122396A (en) | 2008-12-20 |
JP2008519816A (en) | 2008-06-12 |
HUP0402371A2 (en) | 2006-09-28 |
US7964731B2 (en) | 2011-06-21 |
CN101056859A (en) | 2007-10-17 |
CN101056859B (en) | 2010-05-05 |
AU2005303544B2 (en) | 2011-06-02 |
CA2588073A1 (en) | 2006-05-18 |
HU0402371D0 (en) | 2005-03-29 |
RU2379290C2 (en) | 2010-01-20 |
EP1814857B1 (en) | 2010-09-01 |
AU2005303544A1 (en) | 2006-05-18 |
ATE479660T1 (en) | 2010-09-15 |
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