ES2657121T3 - Derivados de diazacarbazol como ligandos tau-pet - Google Patents
Derivados de diazacarbazol como ligandos tau-pet Download PDFInfo
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- ES2657121T3 ES2657121T3 ES14781169.9T ES14781169T ES2657121T3 ES 2657121 T3 ES2657121 T3 ES 2657121T3 ES 14781169 T ES14781169 T ES 14781169T ES 2657121 T3 ES2657121 T3 ES 2657121T3
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- tau
- pet ligands
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- BZHCVCNZIJZMRN-UHFFFAOYSA-N 9h-pyridazino[3,4-b]indole Chemical class N1=CC=C2C3=CC=CC=C3NC2=N1 BZHCVCNZIJZMRN-UHFFFAOYSA-N 0.000 title 1
- 239000003446 ligand Substances 0.000 title 1
- 150000001875 compounds Chemical class 0.000 abstract description 15
- 150000003839 salts Chemical class 0.000 abstract description 9
- 239000002253 acid Substances 0.000 abstract description 8
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical group [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 abstract description 3
- 229910052722 tritium Chemical group 0.000 abstract description 3
- 229910052731 fluorine Inorganic materials 0.000 abstract description 2
- 239000011737 fluorine Substances 0.000 abstract description 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 2
- 239000001257 hydrogen Substances 0.000 abstract description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 abstract 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- 239000002904 solvent Substances 0.000 description 8
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 6
- -1 for example Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000000825 pharmaceutical preparation Substances 0.000 description 4
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- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
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- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
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- 238000006243 chemical reaction Methods 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000000543 intermediate Substances 0.000 description 3
- 229920005862 polyol Polymers 0.000 description 3
- 150000003077 polyols Chemical class 0.000 description 3
- 229910000027 potassium carbonate Inorganic materials 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- KZPYGQFFRCFCPP-UHFFFAOYSA-N 1,1'-bis(diphenylphosphino)ferrocene Chemical compound [Fe+2].C1=CC=C[C-]1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=C[C-]1P(C=1C=CC=CC=1)C1=CC=CC=C1 KZPYGQFFRCFCPP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
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- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
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- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
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- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
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- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 2
- 239000002287 radioligand Substances 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- DYHSDKLCOJIUFX-UHFFFAOYSA-N tert-butoxycarbonyl anhydride Chemical compound CC(C)(C)OC(=O)OC(=O)OC(C)(C)C DYHSDKLCOJIUFX-UHFFFAOYSA-N 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 2
- XBBLBQZAVMHEER-UHFFFAOYSA-N (2,6-dichloropyridin-3-yl)boronic acid Chemical compound OB(O)C1=CC=C(Cl)N=C1Cl XBBLBQZAVMHEER-UHFFFAOYSA-N 0.000 description 1
- QBYIENPQHBMVBV-HFEGYEGKSA-N (2R)-2-hydroxy-2-phenylacetic acid Chemical compound O[C@@H](C(O)=O)c1ccccc1.O[C@@H](C(O)=O)c1ccccc1 QBYIENPQHBMVBV-HFEGYEGKSA-N 0.000 description 1
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- FDMOHTOITMTGNG-UHFFFAOYSA-N 11-(6-fluoropyridin-3-yl)-4,8,10-triazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene Chemical compound Fc1ccc(cn1)-c1ccc2c(n1)[nH]c1ccncc21 FDMOHTOITMTGNG-UHFFFAOYSA-N 0.000 description 1
- DNALPMZQPFKJRV-UHFFFAOYSA-N 26422-85-5 Chemical compound C1=NC=C2C3=CC=CN=C3NC2=C1 DNALPMZQPFKJRV-UHFFFAOYSA-N 0.000 description 1
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- WBYWAXJHAXSJNI-SREVYHEPSA-N Cinnamic acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1 WBYWAXJHAXSJNI-SREVYHEPSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000007832 Na2SO4 Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- IWYDHOAUDWTVEP-UHFFFAOYSA-N R-2-phenyl-2-hydroxyacetic acid Natural products OC(=O)C(O)C1=CC=CC=C1 IWYDHOAUDWTVEP-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000000211 autoradiogram Methods 0.000 description 1
- 150000007514 bases Chemical class 0.000 description 1
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- 239000000872 buffer Substances 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
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- 238000004296 chiral HPLC Methods 0.000 description 1
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- 238000006073 displacement reaction Methods 0.000 description 1
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- CCIVGXIOQKPBKL-UHFFFAOYSA-M ethanesulfonate Chemical compound CCS([O-])(=O)=O CCIVGXIOQKPBKL-UHFFFAOYSA-M 0.000 description 1
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- 235000011087 fumaric acid Nutrition 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 150000002431 hydrogen Chemical group 0.000 description 1
- 229960004903 invert sugar Drugs 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 229960002510 mandelic acid Drugs 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 239000011698 potassium fluoride Substances 0.000 description 1
- 235000003270 potassium fluoride Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004262 preparative liquid chromatography Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- UMLDUMMLRZFROX-UHFFFAOYSA-N pyridin-2-ylboronic acid Chemical class OB(O)C1=CC=CC=N1 UMLDUMMLRZFROX-UHFFFAOYSA-N 0.000 description 1
- 229940107700 pyruvic acid Drugs 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
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- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
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- 235000020357 syrup Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- CRYUKTWVDRHUDN-UHFFFAOYSA-N tert-butyl N-[3-(2,6-dichloropyridin-3-yl)pyridin-4-yl]carbamate Chemical compound CC(C)(C)OC(=O)Nc1ccncc1-c1ccc(Cl)nc1Cl CRYUKTWVDRHUDN-UHFFFAOYSA-N 0.000 description 1
- FFJIDTLUJQCVAI-UHFFFAOYSA-N tert-butyl n-(3-iodopyridin-4-yl)carbamate Chemical compound CC(C)(C)OC(=O)NC1=CC=NC=C1I FFJIDTLUJQCVAI-UHFFFAOYSA-N 0.000 description 1
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical compound CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
-
- 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
- A61K31/4353—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 ortho- or peri-condensed with heterocyclic ring systems
- A61K31/437—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 ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
-
- 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
- A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
- A61K31/4427—Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems
- A61K31/444—Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems containing a six-membered ring with nitrogen as a ring heteroatom, e.g. amrinone
-
- 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
- A61K49/08—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by the carrier
- A61K49/10—Organic compounds
-
- 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
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Abstract
Un compuesto de fórmula**Fórmula** en la que R es hidrógeno o tritio; F es flúor o 18flúor; o una sal de adición de ácido farmacéuticamente aceptable del mismo.
Description
de transición con ácidos piridinborónicos apropiados 3, un catalizador como, por ejemplo, Pd(dppf)Cl2 y una base como, por ejemplo, carbonato de potasio en un disolvente adecuado como DMF. De forma alternativa, el 1,6-diazacarbazol 2 se convierte primero en los intermedios protegidos 8 mediante reacción con un reactivo adecuado, por ejemplo, di-terc-butildicarbonato, en un disolvente adecuado como, por ejemplo, DMF, seguido de reacción de acoplamiento cruzado catalizada por metales de transición para dar los intermedios 9 usando ácidos pridinborónicos apropiados 3, un catalizador como, por ejemplo, Pd(dppf)Cl2 y una base como, por ejemplo, carbonato de potasio en un disolvente como DMF. La desprotección da lugar, a continuación, a compuestos de fórmula I.
10
De acuerdo con el esquema 2, un compuesto de fórmula I, en la que R es hidrógeno, se puede preparar tratando un compuesto de fórmula 4 (X = Br, Cl, nitro); preparado de acuerdo con la síntesis de los compuestos de fórmula I descrita en el esquema 1, con un reactivo fluorante adecuado como, por ejemplo, fluoruro de potasio o fluoruro de
15 tetrabutilamonio en un disolvente adecuado como, por ejemplo, DMF o DMSO.
Los compuestos de fórmula I en la que R es tritio o F es 18F
20 se pueden preparar de manera convencional como se describe en los ejemplos específicos. Los compuestos de fórmula I no contienen simultáneamente tritio y 18F.
25 El aislamiento y la purificación de los compuestos e intermedios descritos en el presente documento se pueden efectuar, si se desea, mediante cualquier procedimiento de separación o purificación adecuado, tal como, por ejemplo, filtración, extracción, cristalización, cromatografía en columna, cromatografía en capa fina, cromatografía en capa gruesa, cromatografía preparativa de líquidos a baja o alta presión o una combinación de estos
30 procedimientos. Se pueden encontrar ilustraciones específicas de procedimientos de separación y aislamiento adecuados por referencia a las preparaciones y ejemplos descritos a continuación en el presente documento. Sin embargo, por supuesto, también se podrían usar otros procedimientos de separación o aislamiento equivalentes. Las mezclas racémicas de compuestos quirales de fórmula I se pueden separar usando HPLC quiral.
Los compuestos de fórmula I son básicos y se pueden convertir en una sal de adición de ácido correspondiente. La conversión se consigue mediante tratamiento con al menos una cantidad estequiométrica de un ácido apropiado, tal como ácido clorhídrico, ácido bromhídrico, ácido sulfúrico, ácido nítrico, ácido fosfórico y similares, y ácidos 40 orgánicos, tales como ácido acético, ácido propiónico, ácido glicólico, ácido pirúvico, ácido oxálico, ácido málico, ácido malónico, ácido succínico, ácido maleico, ácido fumárico, ácido tartárico, ácido cítrico, ácido benzoico, ácido cinámico, ácido mandélico, ácido metanosulfónico, ácido etanosulfónico, ácido p-toluenosulfónico, ácido salicílico y similares. Típicamente, la base libre se disuelve en un disolvente orgánico inerte, tal como éter dietílico, acetato de etilo, cloroformo, etanol o metanol y similares, y se añade el ácido en un disolvente similar. La temperatura se
45 mantiene entre 0 °C y 50 °C. La sal resultante precipita espontáneamente o se puede precipitar mediante adición de un disolvente menos polar.
Las sales de adición de ácido de los compuestos básicos de fórmula I se pueden convertir en las correspondientes bases libres mediante tratamiento con al menos un equivalente estequiométrico de una base adecuada, tal como 50 hidróxido de sodio o potasio, carbonato de potasio, bicarbonato de sodio, amoníaco y similares.
7
- Estructura
- Denominación % de desplazamiento de [3H]T808 (10 nM) Ej.
- imagen9
-
3H-2-(6-fluoro-piridin-3-il)-9H-dipirido[2,3b;3',4'-d]pirrol
imagen10 2
- imagen11
-
[18F]-2-(6-fluoro-piridin-3-il)-9H-dipirido[2,3b;3',4'-d]pirrol
imagen12 3
Autorradiograma de 3H-2-(6-fluoro-piridin-3-il)-9H-dipirido[2,3-b;3',4'-d]pirrol incubado con una sección cortical de 5 cerebro humano obtenido de un paciente con EA en estadio V de Braak. La concentración del radioligando fue de 3,2 nM. El radioligando muestra una tinción punteada de agregados de tau en un patrón de distribución en capas.
Los compuestos de fórmula I y las sales farmacéuticamente aceptables de los mismos se pueden usar en forma de preparaciones farmacéuticas. Las preparaciones farmacéuticas se pueden administrar en forma de soluciones para
10 inyección.
Los compuestos de fórmula I y las sales farmacéuticamente aceptables de los mismos se pueden procesar con vehículos inorgánicos u orgánicos farmacéuticamente inertes para la producción de preparaciones farmacéuticas. Los vehículos adecuados para la producción de soluciones y jarabes son, por ejemplo, agua, polioles, sacarosa,
15 azúcar invertido, glucosa y similares. Los adyuvantes, tales como alcoholes, polioles, glicerol, aceites vegetales y similares, se pueden usar para soluciones acuosas para inyección de sales solubles en agua de compuestos de fórmula I, pero por regla general no son necesarios. Los vehículos adecuados para supositorios son, por ejemplo, aceites naturales o endurecidos, ceras, grasas, polioles semilíquidos o líquidos y similares.
20 Además, las preparaciones farmacéuticas pueden contener conservantes, solubilizantes, estabilizantes, agentes humectantes, emulsionantes, edulcorantes, colorantes, aromatizantes, sales para modificar la presión osmótica, tampones, agentes de enmascaramiento o antioxidantes. También pueden contener todavía otras sustancias terapéuticamente valiosas.
25 La dosificación puede variar dentro de límites amplios y, por supuesto, se puede ajustar a las necesidades individuales en cada caso particular.
Sección experimental:
35
Un matraz precalentado se evacuó y se llenó de nuevo con argón varias veces y se cargó con 3-yodopiridin-4ilcarbamato de terc-butilo (4,56 g, 14,2 mmol), ácido 2,6-dicloropiridin-3-ilborónico (5,46 g, 28,4 mmol), Pd(OAc)2 40 (320 mg, 1,42 mmol) y trifenilfosfina (371 mg, 1,41 mmol) en atmósfera de argón. Se añadió trietilamina (4,32 g, 5,94 ml, 42,7 mmol) en DMF (137 ml) y la mezcla de reacción se calentó a 100 ºC y se agitó durante 3 h. El disolvente se evaporó casi por completo. Se añadió agua y la suspensión del producto bruto se extrajo dos veces con acetato de etilo. La fase orgánica combinada se lavó con agua (3 x), se secó sobre Na2SO4, se filtró y el disolvente se evaporó. La trituración del producto bruto con diclorometano proporcionó 1,92 g del producto deseado.
45 La fase de diclorometano se evaporó y se purificó por cromatografía flash (utilizando gel de sílice y un gradiente acetato de etilo/heptano) para producir un total de 3,39 g (~90 % de pureza, 63 % de rendimiento) de N-[3-(2,6dicloro-3-piridil)-4-piridil]carbamato de terc-butilo como un sólido amarillo claro.
EM: m/z = 340,1 (M+H)+.
9
Claims (1)
-
imagen1 imagen2 imagen3
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| SG11201901983PA (en) * | 2016-09-09 | 2019-04-29 | Hoffmann La Roche | Process for preparation of 2-(6-nitropyridin-3-yl)-9h-dipyrido[2,3-b;3',4'-d]pyrrole |
| BR112020014594A8 (pt) * | 2018-01-24 | 2022-12-13 | Ac Immune Sa | Composições de diagnóstico para imageamento pet, método para fabricar composição de diagnóstico e seu uso em diagnóstico |
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