JP2016533390A - 放射ヨウ素標識された3−フルオロプロピル−NOR−β−CITの調製 - Google Patents
放射ヨウ素標識された3−フルオロプロピル−NOR−β−CITの調製 Download PDFInfo
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- JP2016533390A JP2016533390A JP2016545225A JP2016545225A JP2016533390A JP 2016533390 A JP2016533390 A JP 2016533390A JP 2016545225 A JP2016545225 A JP 2016545225A JP 2016545225 A JP2016545225 A JP 2016545225A JP 2016533390 A JP2016533390 A JP 2016533390A
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- XMBWDFGMSWQBCA-RNFDNDRNSA-M iodine-131(1-) Chemical compound [131I-] XMBWDFGMSWQBCA-RNFDNDRNSA-M 0.000 title abstract description 11
- 238000002360 preparation method Methods 0.000 title description 11
- 238000000034 method Methods 0.000 claims abstract description 45
- -1 aryl silane Chemical compound 0.000 claims abstract description 18
- XQNMZKNFKRXLAD-UHFFFAOYSA-N 3-fluoropropanal Chemical compound FCCC=O XQNMZKNFKRXLAD-UHFFFAOYSA-N 0.000 claims abstract description 14
- HNEGJTWNOOWEMH-UHFFFAOYSA-N 1-fluoropropane Chemical group [CH2]CCF HNEGJTWNOOWEMH-UHFFFAOYSA-N 0.000 claims abstract description 11
- 150000001875 compounds Chemical class 0.000 claims description 70
- 239000011541 reaction mixture Substances 0.000 claims description 44
- 238000006243 chemical reaction Methods 0.000 claims description 40
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 claims description 14
- 239000003638 chemical reducing agent Substances 0.000 claims description 12
- 229910052736 halogen Inorganic materials 0.000 claims description 11
- 150000002367 halogens Chemical group 0.000 claims description 11
- 239000003153 chemical reaction reagent Substances 0.000 claims description 8
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 8
- VNHWPVLQRKKKRY-UHFFFAOYSA-N 1-bromo-3-fluoropropane Chemical compound FCCCBr VNHWPVLQRKKKRY-UHFFFAOYSA-N 0.000 claims description 7
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 claims description 6
- QZRGKCOWNLSUDK-UHFFFAOYSA-N Iodochlorine Chemical compound ICl QZRGKCOWNLSUDK-UHFFFAOYSA-N 0.000 claims description 5
- 239000002168 alkylating agent Substances 0.000 claims description 5
- 229940100198 alkylating agent Drugs 0.000 claims description 5
- 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 5
- QOPVNWQGBQYBBP-UHFFFAOYSA-N chloroethyl chloroformate Chemical compound CC(Cl)OC(Cl)=O QOPVNWQGBQYBBP-UHFFFAOYSA-N 0.000 claims description 5
- 239000012321 sodium triacetoxyborohydride Substances 0.000 claims description 5
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 4
- 230000001335 demethylating effect Effects 0.000 claims description 4
- 235000019253 formic acid Nutrition 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 4
- BEOOHQFXGBMRKU-UHFFFAOYSA-N sodium cyanoborohydride Chemical compound [Na+].[B-]C#N BEOOHQFXGBMRKU-UHFFFAOYSA-N 0.000 claims description 4
- 229960001479 tosylchloramide sodium Drugs 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 229910001494 silver tetrafluoroborate Inorganic materials 0.000 claims description 3
- IXZDIALLLMRYOU-UHFFFAOYSA-N tert-butyl hypochlorite Chemical compound CC(C)(C)OCl IXZDIALLLMRYOU-UHFFFAOYSA-N 0.000 claims description 3
- URBUZQPPQLQHBZ-UHFFFAOYSA-N 1-fluoro-3-iodopropane Chemical compound FCCCI URBUZQPPQLQHBZ-UHFFFAOYSA-N 0.000 claims description 2
- PQLFROTZSIMBKR-UHFFFAOYSA-N ethenyl carbonochloridate Chemical compound ClC(=O)OC=C PQLFROTZSIMBKR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052740 iodine Inorganic materials 0.000 claims description 2
- 235000009518 sodium iodide Nutrition 0.000 claims description 2
- 238000010791 quenching Methods 0.000 claims 1
- 230000000171 quenching effect Effects 0.000 claims 1
- MPSNEAHFGOEKBI-VXNVDRBHSA-N Anhydroecgonine methyl ester Chemical compound COC(=O)C1=CC[C@@H]2CC[C@H]1N2C MPSNEAHFGOEKBI-VXNVDRBHSA-N 0.000 abstract description 6
- MPSNEAHFGOEKBI-UHFFFAOYSA-N anhydroecogonine methyl ester Natural products COC(=O)C1=CCC2CCC1N2C MPSNEAHFGOEKBI-UHFFFAOYSA-N 0.000 abstract description 6
- DGGKXQQCVPAUEA-UHFFFAOYSA-N 8-azabicyclo[3.2.1]octane Chemical compound C1CCC2CCC1N2 DGGKXQQCVPAUEA-UHFFFAOYSA-N 0.000 abstract description 5
- 230000002152 alkylating effect Effects 0.000 abstract description 2
- 229910000077 silane Inorganic materials 0.000 abstract 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 27
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 27
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 18
- 239000002904 solvent Substances 0.000 description 15
- 239000000203 mixture Substances 0.000 description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 150000004795 grignard reagents Chemical class 0.000 description 11
- 239000007818 Grignard reagent Substances 0.000 description 10
- 235000019439 ethyl acetate Nutrition 0.000 description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- ABRVLXLNVJHDRQ-UHFFFAOYSA-N [2-pyridin-3-yl-6-(trifluoromethyl)pyridin-4-yl]methanamine Chemical compound FC(C1=CC(=CC(=N1)C=1C=NC=CC=1)CN)(F)F ABRVLXLNVJHDRQ-UHFFFAOYSA-N 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- NKLCNNUWBJBICK-UHFFFAOYSA-N dess–martin periodinane Chemical compound C1=CC=C2I(OC(=O)C)(OC(C)=O)(OC(C)=O)OC(=O)C2=C1 NKLCNNUWBJBICK-UHFFFAOYSA-N 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 239000002243 precursor Substances 0.000 description 6
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 description 5
- 238000004587 chromatography analysis Methods 0.000 description 5
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010520 demethylation reaction Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 150000007529 inorganic bases Chemical class 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000000908 ammonium hydroxide Substances 0.000 description 3
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012217 radiopharmaceutical Substances 0.000 description 3
- 229940121896 radiopharmaceutical Drugs 0.000 description 3
- 230000002799 radiopharmaceutical effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000000935 solvent evaporation Methods 0.000 description 3
- KJAMZCVTJDTESW-UHFFFAOYSA-N tiracizine Chemical compound C1CC2=CC=CC=C2N(C(=O)CN(C)C)C2=CC(NC(=O)OCC)=CC=C21 KJAMZCVTJDTESW-UHFFFAOYSA-N 0.000 description 3
- KXFSUVJPEQYUGN-UHFFFAOYSA-N trimethyl(phenyl)silane Chemical class C[Si](C)(C)C1=CC=CC=C1 KXFSUVJPEQYUGN-UHFFFAOYSA-N 0.000 description 3
- UKTSSJJZFVGTCG-UHFFFAOYSA-N (4-bromophenyl)-trimethylsilane Chemical compound C[Si](C)(C)C1=CC=C(Br)C=C1 UKTSSJJZFVGTCG-UHFFFAOYSA-N 0.000 description 2
- YRIZYWQGELRKNT-UHFFFAOYSA-N 1,3,5-trichloro-1,3,5-triazinane-2,4,6-trione Chemical compound ClN1C(=O)N(Cl)C(=O)N(Cl)C1=O YRIZYWQGELRKNT-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- QYTDEUPAUMOIOP-UHFFFAOYSA-N TEMPO Chemical group CC1(C)CCCC(C)(C)N1[O] QYTDEUPAUMOIOP-UHFFFAOYSA-N 0.000 description 2
- ZEEBGORNQSEQBE-UHFFFAOYSA-N [2-(3-phenylphenoxy)-6-(trifluoromethyl)pyridin-4-yl]methanamine Chemical compound C1(=CC(=CC=C1)OC1=NC(=CC(=C1)CN)C(F)(F)F)C1=CC=CC=C1 ZEEBGORNQSEQBE-UHFFFAOYSA-N 0.000 description 2
- 238000007259 addition reaction Methods 0.000 description 2
- 230000029936 alkylation Effects 0.000 description 2
- 238000005804 alkylation reaction Methods 0.000 description 2
- 239000000010 aprotic solvent Substances 0.000 description 2
- 230000017858 demethylation Effects 0.000 description 2
- 230000000779 depleting effect Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical class II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- GDOPTJXRTPNYNR-UHFFFAOYSA-N methyl-cyclopentane Natural products CC1CCCC1 GDOPTJXRTPNYNR-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 229950009390 symclosene Drugs 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PAAZPARNPHGIKF-UHFFFAOYSA-N 1,2-dibromoethane Chemical compound BrCCBr PAAZPARNPHGIKF-UHFFFAOYSA-N 0.000 description 1
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 description 1
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 description 1
- NLRJUIXKEMCEOH-UHFFFAOYSA-N 3-fluoropropan-1-ol Chemical compound OCCCF NLRJUIXKEMCEOH-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 206010012289 Dementia Diseases 0.000 description 1
- 208000012661 Dyskinesia Diseases 0.000 description 1
- 238000007126 N-alkylation reaction Methods 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000008351 acetate buffer Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000000032 diagnostic agent Substances 0.000 description 1
- 229940039227 diagnostic agent Drugs 0.000 description 1
- 239000004210 ether based solvent Substances 0.000 description 1
- 239000002024 ethyl acetate extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000002390 rotary evaporation Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 239000012258 stirred mixture Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- PQDJYEQOELDLCP-UHFFFAOYSA-N trimethylsilane Chemical group C[SiH](C)C PQDJYEQOELDLCP-UHFFFAOYSA-N 0.000 description 1
- CCRMAATUKBYMPA-UHFFFAOYSA-N trimethyltin Chemical compound C[Sn](C)C.C[Sn](C)C CCRMAATUKBYMPA-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
- A61K51/0446—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine, rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
- A61K51/0448—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine, rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil tropane or nortropane groups, e.g. cocaine
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Optics & Photonics (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
Description
本出願は、その全体が参照により本明細書に援用される2013年9月25日に出願された米国仮出願第61/882,039号の優先権を主張する。
アリールスタンナン前駆体の調製には、非常に有毒なスズ試薬ヘキサメチルジスズを使用する必要がある。ヘキサメチルジスズの安全な使用には、工学的な制御としっかりとした個人用保護具を必要とする。そのため、ヘキサメチルジスズの使用を必要としないI−123放射ヨウ素標識された3−フルオロプロピル−nor−β−CITの製造方法が求められている。
さらに、3−フルオロ−1−ブロモプロパンを用いたアルキル化に依存した、ノルトロパンを、対応するN−(3−フルオロプロピル)類似体に変換する方法は以前から周知である。例えば、Swahn,ら、Journal of Labelled Compounds and Radiopharmaceuticals、1996、Vol.XXXVIII,No.7、p.675−685を参照のこと。しかしながら、3−フルオロ−1−ブロモプロパンは、オゾン枯渇化合物であることが知られている。そのため、3−フルオロ−1−ブロモプロパンの使用を必要としない、ノルトロパンのN−(3−フルオロプロピル)類似体、とりわけI−123放射ヨウ素標識された3−フルオロプロピル−nor−β−CITの製造方法が求められている。
一態様では、本発明は、以下の反応スキームを含む化合物(I)を調製する方法に関する。
本発明は、アリールシラン中間体を用いたI−123放射ヨウ素標識された3−フルオロプロピル−nor−β−CITの調製に関する。当該方法は、ヘキサメチルジスズの使用を回避し、アンヒドロエクゴニンメチルエステル(化合物1−1)から放射ヨウ素標識された3−フルオロプロピル−nor−β−CITを調製するための以前から周知のステップ数より少なくする。また、本発明は、3−フルオロプロパナールを使用した、ノルトロパンの対応するN−(3−フルオロプロピル)類似体へのアルキル化に関する。当該方法は、オゾン枯渇化合物3−フルオロ−1−ブロモプロパンの使用を回避する。
反応スキーム1:
化合物の製造(I)
ステップA:化合物1−1の化合物2−1への変換
(i)グリニャール試薬の形成
(ii)グリニャール付加反応
ステップB:化合物2−1の化合物3−1への変換
ステップC:化合物3−1の化合物4−1への変換
ステップD:化合物4−1の化合物(I)への変換
化合物(III)の調製
ここで、R1は、ハロゲン、{−}Si(CH3)3及び{−}Sn(CH3)3から成る群から選択される。好ましくは、ハロゲンはIである。好ましい実施形態では、R1はIまたは{−}Si(CH3)3である。
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実施例1:化合物2−1の製造
実施例2:化合物2−1の脱メチル化
実施例3:N−(3−フルオロプロピル)CITの調製
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Claims (15)
- 以下の反応スキームを含む化合物(I)の調製方法であって、
ここで、
Xはハロゲンであり、
Meはメチルある、前記方法。 - 請求項1に記載の方法であって、(1)ステップAを約−40℃〜約−90℃の温度で実施し、(2)さらに、トリフルオロ酢酸でステップAをクエンチすることを含み、または(3)それらの組み合わせである、前記方法。
- 脱メチル化試薬は、1−クロロエチルクロロギ酸、クロロギ酸ビニル、及び2,2,2−トリエチルクロロギ酸からなる群から選択される、請求項1に記載の方法。
- アルキル化剤は、3−フルオロ−1−ブロモプロパン、3−フルオロ−1−ヨードプロパン、3−フルオロプロパナールからなる群から選択される、請求項1に記載の方法。
- ステップCの反応混合物は、さらに、トリアセトキシ水素化ホウ素ナトリウム、シアノ水素化ホウ素ナトリウム、及びギ酸からなる群から選択される還元剤を含む、請求項4に記載の方法。
- 還元剤が化合物3−1に対して約2当量〜約15当量の量で反応混合物中に存在する、請求項5に記載の方法。
- ステップDの反応混合物は、ヨウ化ナトリウム及びヨウ素一塩化物からなる群から選択されるI−123の供給源を含む、請求項1に記載の方法。
- ステップDの反応混合物は、クロラミン−T、次亜塩素酸tert−ブチル、過酢酸、及びそれらの組み合わせからなる群から選択される酸化剤を含む、請求項1に記載の方法。
- ステップDの反応混合物はヨウ素一塩化物及びテトラフルオロホウ酸銀を含む、請求項1に記載の方法。
- ノルトロパン化合物(II)を3−フルオロプロパナールに接触させ、化合物(III)を形成することを含む、N−(3−フルオロプロピル)化合物(III)を調製する方法であって、
ここで、R1は、ハロゲン、{−}Si(CH3)3及び{−}Sn(CH3)3から成る群から選択される、前記方法。 - R1は{−}Si(CH3)3である請求項10に記載の方法。
- 反応は還元剤の存在下で行われる、請求項10に記載の方法。
- 還元剤は、トリアセトキシ水素化ホウ素ナトリウム、シアノ水素化ホウ素ナトリウム、及びギ酸からなる群から選択される、請求項12に記載の方法。
- 還元剤は化合物(II)に対して約2当量〜約15当量の量で反応混合物中に存在する、請求項12に記載の方法。
- ハロゲンはBrまたはIである、前記請求項のいずれか一つに記載の方法。
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