JP7498468B2 - 生体高分子を認識するハイブリッド型蛍光プローブ - Google Patents
生体高分子を認識するハイブリッド型蛍光プローブ Download PDFInfo
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- JP7498468B2 JP7498468B2 JP2023060076A JP2023060076A JP7498468B2 JP 7498468 B2 JP7498468 B2 JP 7498468B2 JP 2023060076 A JP2023060076 A JP 2023060076A JP 2023060076 A JP2023060076 A JP 2023060076A JP 7498468 B2 JP7498468 B2 JP 7498468B2
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- alkyl
- hexane
- ethyl acetate
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- 239000007850 fluorescent dye Substances 0.000 title description 12
- 229920001222 biopolymer Polymers 0.000 title description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 56
- 150000001875 compounds Chemical class 0.000 claims description 52
- 150000003839 salts Chemical class 0.000 claims description 16
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 7
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 7
- 125000000304 alkynyl group Chemical group 0.000 claims description 3
- BUIMWOLDCCGZKZ-UHFFFAOYSA-N n-hydroxynitramide Chemical compound ON[N+]([O-])=O BUIMWOLDCCGZKZ-UHFFFAOYSA-N 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 175
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 174
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 72
- 238000006243 chemical reaction Methods 0.000 description 66
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 54
- 239000000203 mixture Substances 0.000 description 47
- 239000000243 solution Substances 0.000 description 40
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 34
- 239000000460 chlorine Substances 0.000 description 27
- 238000005160 1H NMR spectroscopy Methods 0.000 description 24
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 24
- 230000015572 biosynthetic process Effects 0.000 description 24
- 238000003786 synthesis reaction Methods 0.000 description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 23
- 238000004440 column chromatography Methods 0.000 description 22
- 239000000741 silica gel Substances 0.000 description 22
- 229910002027 silica gel Inorganic materials 0.000 description 22
- 239000007787 solid Substances 0.000 description 21
- 239000000523 sample Substances 0.000 description 20
- 125000000623 heterocyclic group Chemical group 0.000 description 19
- 229920001542 oligosaccharide Polymers 0.000 description 19
- 150000002482 oligosaccharides Chemical class 0.000 description 19
- -1 1,1-dimethylbutyl Chemical group 0.000 description 18
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 125000001072 heteroaryl group Chemical group 0.000 description 18
- 238000005259 measurement Methods 0.000 description 18
- 239000000047 product Substances 0.000 description 18
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 16
- 125000003118 aryl group Chemical group 0.000 description 16
- 238000002189 fluorescence spectrum Methods 0.000 description 15
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 14
- 239000011734 sodium Substances 0.000 description 14
- 235000000346 sugar Nutrition 0.000 description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 13
- 235000002597 Solanum melongena Nutrition 0.000 description 13
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 12
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 239000012299 nitrogen atmosphere Substances 0.000 description 11
- HZNVUJQVZSTENZ-UHFFFAOYSA-N 2,3-dichloro-5,6-dicyano-1,4-benzoquinone Chemical compound ClC1=C(Cl)C(=O)C(C#N)=C(C#N)C1=O HZNVUJQVZSTENZ-UHFFFAOYSA-N 0.000 description 10
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 description 10
- JRNVZBWKYDBUCA-UHFFFAOYSA-N N-chlorosuccinimide Chemical compound ClN1C(=O)CCC1=O JRNVZBWKYDBUCA-UHFFFAOYSA-N 0.000 description 10
- 239000007864 aqueous solution Substances 0.000 description 10
- 125000005843 halogen group Chemical group 0.000 description 10
- 125000003545 alkoxy group Chemical group 0.000 description 9
- 150000001720 carbohydrates Chemical class 0.000 description 9
- 125000000753 cycloalkyl group Chemical group 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 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 8
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 8
- 230000005284 excitation Effects 0.000 description 8
- 239000008103 glucose Substances 0.000 description 8
- RNIXSZHNJLUJGC-UHFFFAOYSA-N hydroxy(nitro)cyanamide Chemical compound N#CN(O)[N+]([O-])=O RNIXSZHNJLUJGC-UHFFFAOYSA-N 0.000 description 8
- 150000008163 sugars Chemical class 0.000 description 8
- ASUDFOJKTJLAIK-UHFFFAOYSA-N 2-methoxyethanamine Chemical compound COCCN ASUDFOJKTJLAIK-UHFFFAOYSA-N 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- 125000003342 alkenyl group Chemical group 0.000 description 7
- 238000006862 quantum yield reaction Methods 0.000 description 7
- 125000001424 substituent group Chemical group 0.000 description 7
- 238000010408 sweeping Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- PNHBRYIAJCYNDA-VQCQRNETSA-N (4r)-6-[2-[2-ethyl-4-(4-fluorophenyl)-6-phenylpyridin-3-yl]ethyl]-4-hydroxyoxan-2-one Chemical compound C([C@H](O)C1)C(=O)OC1CCC=1C(CC)=NC(C=2C=CC=CC=2)=CC=1C1=CC=C(F)C=C1 PNHBRYIAJCYNDA-VQCQRNETSA-N 0.000 description 6
- 125000006552 (C3-C8) cycloalkyl group Chemical group 0.000 description 6
- MUCPGEPGWYOKRO-UHFFFAOYSA-N 1,3,2-diazaborinine Chemical compound B1=NC=CC=N1 MUCPGEPGWYOKRO-UHFFFAOYSA-N 0.000 description 6
- 229920000858 Cyclodextrin Polymers 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 239000001116 FEMA 4028 Substances 0.000 description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 6
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 description 6
- 235000011175 beta-cyclodextrine Nutrition 0.000 description 6
- 229960004853 betadex Drugs 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 6
- 229940125773 compound 10 Drugs 0.000 description 6
- 229940125872 compound 4d Drugs 0.000 description 6
- ZLVXBBHTMQJRSX-VMGNSXQWSA-N jdtic Chemical compound C1([C@]2(C)CCN(C[C@@H]2C)C[C@H](C(C)C)NC(=O)[C@@H]2NCC3=CC(O)=CC=C3C2)=CC=CC(O)=C1 ZLVXBBHTMQJRSX-VMGNSXQWSA-N 0.000 description 6
- 150000002772 monosaccharides Chemical class 0.000 description 6
- 229920006395 saturated elastomer Polymers 0.000 description 6
- GHYOCDFICYLMRF-UTIIJYGPSA-N (2S,3R)-N-[(2S)-3-(cyclopenten-1-yl)-1-[(2R)-2-methyloxiran-2-yl]-1-oxopropan-2-yl]-3-hydroxy-3-(4-methoxyphenyl)-2-[[(2S)-2-[(2-morpholin-4-ylacetyl)amino]propanoyl]amino]propanamide Chemical compound C1(=CCCC1)C[C@@H](C(=O)[C@@]1(OC1)C)NC([C@H]([C@@H](C1=CC=C(C=C1)OC)O)NC([C@H](C)NC(CN1CCOCC1)=O)=O)=O GHYOCDFICYLMRF-UTIIJYGPSA-N 0.000 description 5
- JKMHFZQWWAIEOD-UHFFFAOYSA-N 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid Chemical compound OCC[NH+]1CCN(CCS([O-])(=O)=O)CC1 JKMHFZQWWAIEOD-UHFFFAOYSA-N 0.000 description 5
- KZMGYPLQYOPHEL-UHFFFAOYSA-N Boron trifluoride etherate Chemical compound FB(F)F.CCOCC KZMGYPLQYOPHEL-UHFFFAOYSA-N 0.000 description 5
- 239000007995 HEPES buffer Substances 0.000 description 5
- 238000002835 absorbance Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 5
- 238000011088 calibration curve Methods 0.000 description 5
- 229940125797 compound 12 Drugs 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 150000002430 hydrocarbons Chemical group 0.000 description 5
- 125000004433 nitrogen atom Chemical group N* 0.000 description 5
- 239000011780 sodium chloride Substances 0.000 description 5
- 125000000882 C2-C6 alkenyl group Chemical group 0.000 description 4
- 125000003601 C2-C6 alkynyl group Chemical group 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 150000004676 glycans Chemical class 0.000 description 4
- 125000002950 monocyclic group Chemical group 0.000 description 4
- QAPTWHXHEYAIKG-RCOXNQKVSA-N n-[(1r,2s,5r)-5-(tert-butylamino)-2-[(3s)-2-oxo-3-[[6-(trifluoromethyl)quinazolin-4-yl]amino]pyrrolidin-1-yl]cyclohexyl]acetamide Chemical compound CC(=O)N[C@@H]1C[C@H](NC(C)(C)C)CC[C@@H]1N1C(=O)[C@@H](NC=2C3=CC(=CC=C3N=CN=2)C(F)(F)F)CC1 QAPTWHXHEYAIKG-RCOXNQKVSA-N 0.000 description 4
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- 125000003107 substituted aryl group Chemical group 0.000 description 4
- 150000003573 thiols Chemical class 0.000 description 4
- FANCTJAFZSYTIS-IQUVVAJASA-N (1r,3s,5z)-5-[(2e)-2-[(1r,3as,7ar)-7a-methyl-1-[(2r)-4-(phenylsulfonimidoyl)butan-2-yl]-2,3,3a,5,6,7-hexahydro-1h-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol Chemical compound C([C@@H](C)[C@@H]1[C@]2(CCCC(/[C@@H]2CC1)=C\C=C\1C([C@@H](O)C[C@H](O)C/1)=C)C)CS(=N)(=O)C1=CC=CC=C1 FANCTJAFZSYTIS-IQUVVAJASA-N 0.000 description 3
- VIMMECPCYZXUCI-MIMFYIINSA-N (4s,6r)-6-[(1e)-4,4-bis(4-fluorophenyl)-3-(1-methyltetrazol-5-yl)buta-1,3-dienyl]-4-hydroxyoxan-2-one Chemical compound CN1N=NN=C1C(\C=C\[C@@H]1OC(=O)C[C@@H](O)C1)=C(C=1C=CC(F)=CC=1)C1=CC=C(F)C=C1 VIMMECPCYZXUCI-MIMFYIINSA-N 0.000 description 3
- QOLHWXNSCZGWHK-BWBORTOCSA-N (6r,7r)-1-[(4s,5r)-4-acetyloxy-5-methyl-3-methylidene-6-phenylhexyl]-4,7-dihydroxy-6-(11-phenoxyundecylcarbamoyloxy)-2,8-dioxabicyclo[3.2.1]octane-3,4,5-tricarboxylic acid Chemical compound C([C@@H](C)[C@H](OC(C)=O)C(=C)CCC12[C@@H]([C@@H](OC(=O)NCCCCCCCCCCCOC=3C=CC=CC=3)C(O1)(C(O)=O)C(O)(C(O2)C(O)=O)C(O)=O)O)C1=CC=CC=C1 QOLHWXNSCZGWHK-BWBORTOCSA-N 0.000 description 3
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Images
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Description
他に、糖鎖アレイ解析も実施されているが、アレイ解析によく用いられる蛍光色素Cy3を糖類の定量に用いた場合は、定量性には優れるが、量子収率が低く、蛍光色素としては不十分なため、検出感度に難があった。
[項1]
式(1):
R1~R4は、それぞれ独立して、水素原子、ハロゲン原子、ニトロ、シアノ、ヒドロキシ、アミン、チオール、エポキシ、カルボン酸、カルボン酸エステル、C1-6アルキル、C2-6アルケニル、C3-8シクロアルキル、アリール、ヘテロアリール、ヘテロシクリル、-O-C1-6アルキル、-O-C2-6アルケニル、-O-C3-8シクロアルキル、-O-アリール、-O-ヘテロアリール、-O-ヘテロシクリル、-NH-C1-6アルキル、-N(C1-6アルキル)2、-NH-C2-6アルケニル、-NH-C3-8シクロアルキル、-NH-アリール、-NH-ヘテロアリール、-NH-ヘテロシクリル、-NHCO-C1-6アルキル、-NHCO-C2-6アルケニル、-NHCO-C3-8シクロアルキル、-NHCO-アリール、-NHCO-ヘテロアリール、-NHCO-ヘテロシクリル、-CONH-C1-6アルキル、-CONH-C2-6アルケニル、-CONH-C3-8シクロアルキル、-CONH-アリール、-CONH-ヘテロアリール、-CONH-ヘテロシクリル、-CO-C1-6アルキル、-CO-C2-6アルケニル、-CO-C3-8シクロアルキル、-CO-アリール、-CO-ヘテロアリール、または-CO-ヘテロシクリルであり、ここでアルキル、アルケニル、シクロアルキル、アリール、ヘテロアリール、およびヘテロシクリルは、それぞれ独立して、ハロゲン原子、ニトロ、シアノ、ヒドロキシ、アミン、-NH-C1-6アルキル、-N(C1-6アルキル)2、カルボン酸、C1-6アルキル、C1-6アルコキシ、C3-8シクロアルキル、アリール、ヘテロアリール、およびヘテロシクリルからなる群から選択される1または2以上の置換基で置換されていてもよく、あるいはR1とR2、および/またはR3とR4が、それぞれの結合可能ないずれかの部位が結合して環を形成してもよく、および
R5は、水素原子、ハロゲン原子、ニトロ、シアノ、ヒドロキシ、アミン、チオール、エポキシ、カルボン酸、カルボン酸エステル、C1-6アルキル、C2-6アルケニル、C2-6アルキニル、-O-C1-6アルキル、-O-C2-6アルケニル、-O-C2-6アルキニル、-O-C3-8シクロアルキル、-O-アリール、-O-ヘテロアリール、-O-ヘテロシクリル、-NH-C1-6アルキル、-N(C1-6アルキル)2、-NH-C2-6アルケニル、-NH-C2-6アルキニル、-NH-C3-8シクロアルキル、-NH-アリール、-NH-ヘテロアリール、-NH-ヘテロシクリル、-NHCO-C1-6アルキル、-NHCO-C2-6アルケニル、-NHCO-C2-6アルキニル、-NHCO-C3-8シクロアルキル、-NHCO-アリール、-NHCO-ヘテロアリール、-NHCO-ヘテロシクリル、-CONH-C1-6アルキル、-CONH-C2-6アルケニル、-CONH-C2-6アルキニル、-CONH-C3-8シクロアルキル、-CONH-アリール、-CONH-ヘテロアリール、-CONH-ヘテロシクリル、-CO-C1-6アルキル、-CO-C2-6アルケニル、-CO-C2-6アルキニル、-CO-C3-8シクロアルキル、-CO-アリール、-CO-ヘテロアリール、または-CO-ヘテロシクリルであり、ここでアルキル、アルケニル、アルキニル、シクロアルキル、アリール、ヘテロアリール、およびヘテロシクリルは、それぞれ独立して、ハロゲン原子、ニトロ、シアノ、ヒドロキシ、アミン、-NH-C1-6アルキル、-N(C1-6アルキル)2、カルボン酸、C1-6アルキル、C1-6アルコキシ、C3-8シクロアルキル、アリール、ヘテロアリール、およびヘテロシクリル(ここで、シクロアルキル、アリール、ヘテロアリール、およびヘテロシクリルは、更に適宜置換されていてもよいC1-12アルキル、適宜置換されていてもよいベンジル、適宜置換されていてもよいアリール、適宜置換されていてもよいヘテロアリール、または適宜置換されていてもよいヘテロシクリルで置換されていてもよい)からなる群から選択される1または2以上の置換基で置換されていてもよく、あるいは
R5は、下式:
の化合物またはその塩を含むプローブで、糖類をターゲットとした蛍光色素であるプローブ。
R1およびR3が水素原子である、項1または2のプローブ。
R2およびR4がそれぞれ独立して、ハロゲン原子、ヒドロキシ、アミン、カルボン酸、-O-C1-6アルキル、-O-C2-6アルケニル、-NH-C1-6アルキル、-N(C1-6アルキル)2、-NH-C2-6アルケニル、-NHCO-C1-6アルキル、-NHCO-C2-6アルケニル、-CONH-C1-6アルキル、-CONH-C2-6アルケニル、-CO-C1-6アルキル、または-CO-C2-6アルケニルであり、ここでアルキルおよびアルケニルは、それぞれ独立して、ハロゲン原子、ニトロ、シアノ、ヒドロキシ、アミン、-NH-C1-6アルキル、-N(C1-6アルキル)2、カルボン酸、およびC1-6アルコキシからなる群から選択される1または2以上の置換基で置換されていてもよい、項1~3のいずれかのプローブ。
R2およびR4がそれぞれ独立して、-NH-C1-6アルキレン-O-C1-6アルキルである、項3のプローブ。
R2およびR4が、-NH-CH2CH2-O-CH3である、項5のプローブ。
R5が、水素原子、ハロゲン原子、ニトロ、シアノ、ヒドロキシ、アミン、チオール、エポキシ、-O-C1-6アルキル、-O-C2-6アルケニル、-O-C2-6アルキニル、-O-C3-8シクロアルキル、-O-アリール、-O-ヘテロアリール、-O-ヘテロシクリル、-NH-C1-6アルキル、-N(C1-6アルキル)2、-NH-C2-6アルケニル、-NH-C2-6アルキニル、-NH-C3-8シクロアルキル、-NH-アリール、-NH-ヘテロアリール、-NH-ヘテロシクリル、-NHCO-C1-6アルキル、-NHCO-C2-6アルケニル、-NHCO-C2-6アルキニル、-NHCO-C3-8シクロアルキル、-NHCO-アリール、-NHCO-ヘテロアリール、または-NHCO-ヘテロシクリル、であり、ここでアルキル、アルケニル、シクロアルキル、アリール、ヘテロアリール、およびヘテロシクリルは、それぞれ独立して、ハロゲン原子、ニトロ、シアノ、ヒドロキシ、アミン、-NH-C1-6アルキル、-N(C1-6アルキル)2、カルボン酸、C1-6アルキル、C1-6アルコキシ、C3-8シクロアルキル、アリール、ヘテロアリール、およびヘテロシクリル(ここで、シクロアルキル、アリール、ヘテロアリール、およびヘテロシクリルは、更に適宜置換されていてもよいC1-12アルキル、適宜置換されていてもよいベンジル、適宜置換されていてもよいアリール、適宜置換されていてもよいヘテロアリール、または適宜置換されていてもよいヘテロシクリルで置換されていてもよい)からなる群から選択される1または2以上の置換基で置換されていてもよい、項1~6のいずれかのプローブ。
R5が、水素原子、ニトロ、ヒドロキシ、アミン、チオール、エポキシ、-O-C1-6アルキル、-O-C2-6アルケニル、-O-C2-6アルキニル、-O-C3-8シクロアルキル、-O-アリール、-O-ヘテロアリール、-O-ヘテロシクリル、-NHCO-C1-6アルキル、-NHCO-C2-6アルケニル、-NHCO-C2-6アルキニル、-NHCO-C3-8シクロアルキル、-NHCO-アリール、-NHCO-ヘテロアリール、または-NHCO-ヘテロシクリル、であり、ここでアルキル、アルケニル、シクロアルキル、アリール、ヘテロアリール、およびヘテロシクリルは、それぞれ独立して、ハロゲン原子、ニトロ、シアノ、ヒドロキシ、アミン、-NH-C1-6アルキル、-N(C1-6アルキル)2、カルボン酸、C1-6アルキル、C1-6アルコキシ、C3-8シクロアルキル、アリール、ヘテロアリール、およびヘテロシクリル(ここで、シクロアルキル、アリール、ヘテロアリール、およびヘテロシクリルは、更に適宜置換されていてもよいC1-12アルキル、適宜置換されていてもよいベンジル、適宜置換されていてもよいアリール、適宜置換されていてもよいヘテロアリール、または適宜置換されていてもよいヘテロシクリルで置換されていてもよい)からなる群から選択される1または2以上の置換基で置換されていてもよい、項1~7のいずれかのプローブ。
R5が、C2-6アルキニル、-O-C2-6アルキニル、-NH-C2-6アルキニル、-NHCO-C2-6アルキニル、または-CO-C2-6アルキニルである、項1~6のいずれかのプローブ。
ターゲットの糖類がオリゴ糖である、項1~13のいずれかのプローブ。
ターゲットの糖類が生体高分子中の糖類である、項1~13のいずれかのプローブ。
項1~13のいずれかに記載のプローブを用いることを特徴とする、糖類を含む生体高分子の解析方法。
式(1)で表される化合物が塩基性基を有する場合は、例えば、塩酸塩、臭化水素酸塩、硫酸塩、リン酸塩、硝酸塩等の無機酸塩;および酢酸塩、プロピオン酸塩、コハク酸塩、乳酸塩、リンゴ酸塩、酒石酸塩、クエン酸塩、マレイン酸塩、フマル酸塩、メタンスルホン酸塩、p-トルエンスルホン酸塩、ベンゼンスルホン酸塩、アスコルビン酸塩等の有機酸塩等が挙げられる。
本発明において「オリゴ糖」とは、単糖が2~10個、好ましくは3~10個、または3~6個で構成され、それぞれがα-またはβ-グリコシド結合した糖鎖をいう。なお、構成する単糖に還元糖が必ずしも含まれる必要はない。
Mp: 85.0-86.0℃.
1H NMR (CDCl3, 400 MHz): δ 9.91 (1H, s, CHO at C1), 7.86 (2H, d, J = 8.8 Hz, CH at C4 and C6), 7.09 (2H, d, J = 8.8 Hz, CH at C3 and C7), 4.78 (2H, d, J = 2.4 Hz, CH2 at C8), 2.58 (1H, s, CH at C10).
Mp: 100.0-101.0℃.
1H NMR (CDCl3, 400 MHz): δ 7.91 (2H, brs, NH at N1 and N2), 7.20-7.34 (5H, m, CH at C11, C12, C13, C14 and C15) , 6.70 (2H, m, CH at C1 and C9), 6.17 (2H, dd, J = 5.9, 2.8 Hz, CH at C2 and C8), 5.92 (2H, s, CH at C3 and C7), 5.48 (1H, s, CH at C5).
Mp: 99.0-100.0℃.
1H NMR (CDCl3, 400 MHz): δ 7.92 (2H, brs, NH, at N1 and N2), 7.13 (2H, d, J = 8.6 Hz, CH at C12 and C14), 6.85 (2H, d, J = 8.6 Hz, CH at C11 and C15), 6.70 (2H, m, CH at C1 and C9), 6.16 (2H, dd, J = 5.9, 2.8 Hz, CH at C2 and C8), 5.91 (2H, s, CH at C3 and C7), 5.44 (1H, s, CH at C5), 3.80 (3H, s, CH3 at C16).
Mp: 107.5-109.5℃.
1H NMR (CDCl3, 400 MHz): δ 7.92 (2H, brs, NH at N1 and N2), 7.09 (2H, d, J = 8.5 Hz, CH at C12 and C14), 6.78 (2H, d, J = 8.5 Hz, CH at C11 and C15), 6.70 (2H, m, CH at C1 and C9), 6.16 (2H, dd, J = 5.9, 2.8 Hz, CH at C2 and C8), 5.91 (2H, s, CH at C3 and C7), 5.43 (1H, s, CH at C5), 4.66 (1H, s, OH at C13).
HRMS m/z [M+Na]+ Calcd for C15H14N2NaO+ 261.0998; Found 261.1003.
1H NMR (CDCl3, 400 MHz): δ 7.89 (2H, brs, NH at N1 and N2), 7.12 (2H, d, J = 8.8 Hz, CH at C12 and C14), 6.91 (2H, d, J = 8.8 Hz, CH at C11 and C15), 6.67 (2H, m, CH at C1 and C9), 6.15 (2H, q, J = 2.8 Hz, CH at C2 and C8), 5.90 (2H, s, CH at C3 and C7), 5.43 (1H, s, CH at C5), 4.66 (2H, d, J = 2.6 Hz, CH2 at C16), 2.50 (1H, t, J = 2.5 Hz, CH at C18).
Mp: 157-160℃.
1H NMR (CDCl3, 400 MHz): δ 8.16 (2H, d, J = 8.7 Hz, CH at C12 and C14), 8.01 (2H, brs, NH at N1 and N2), 7.36 (2H, d, J = 8.7 Hz, CH at C11 and C15), 6.75 (2H, m, CH at C1 and C9), 6.17 (2H, m, CH at C2 and C8), 5.87 (2H, m, CH at C3 and C7), 5.58 (1H, s, CH at C5).
Mp: 157-160℃.
1H NMR (CDCl3, 400 MHz): δ 12.36 (1H, brs, NH at N1), 7.52-7.41 (5H, m, CH at C11, C12, C13, C14 and C15), 6.52 (2H, d, J = 4.3 Hz, CH at C2 and C8), 6.25 (2H, d, J = 4.3 Hz, CH at C3 and C7).
Mp: 68-71℃.
1H NMR (CDCl3, 400 MHz): δ 7.50-7.61 (5H, m, CH at C11, C12, C13, C14 and C15), 6.86 (2H, d, J = 4.4 Hz, CH at C2 and C8), 6.45 (2H, d, J = 4.4 Hz, CH at C3 and C7).
Mp: 157-160℃.
1H NMR (CDCl3, 400 MHz): δ 7.46 (2H, d, J = 8.8 Hz, CH at C12 and C14), 7.04 (2H, d, J = 8.8 Hz, CH at C11 and C15), 6.89 (2H, d, J = 4.5 Hz, CH at C2 and C8), 6.44 (2H, d, J = 4.5 Hz, CH at C3 and C7), 3.91 (s, 3H, CH3 at C16).
Mp: 223-227℃.
1H NMR (CDCl3, 400 MHz): δ 7.40 (2H, d, J = 8.6 Hz, CH at C12 and C14), 7.00 (2H, d, J = 8.6 Hz, CH at C11 and C15), 6.89 (2H, d, J = 4.2 Hz, CH at C2 and C8), 6.44 (2H, d, J = 4.2 Hz, CH at C3 and C7).
HRMS m/z [M+Na]+ Calcd for C15H9BCl2F2N2NaO+ 375.0045; Found 375.0032.
Mp: 201-204℃.
1H NMR (CDCl3, 400 MHz): δ 7.46 (2H, d, J = 8.7 Hz, CH at C12 and C14), 7.12 (2H, d, J = 8.7 Hz, CH at C11 and C15), 6.89 (2H, d, J = 4.2 Hz, CH at C2 and C8), 6.44 (2H, d, J = 4.2 Hz, CH at C3 and C7), 4.79 (2H, d, J = 2.4 Hz, CH2 at C16), 2.60 (1H, t, J = 2.4 Hz, CH at C18).
Mp: 202-207℃.
IR (KBr): 3225, 1562, 1452, 1402, 1348, 1267, 1196, 1105 cm-1.
1H NMR (CDCl3, 400 MHz): δ 8.41 (2H, d, J = 6.8 Hz, CH at C12 and C14), 7.70 (2H, d, J = 6.8 Hz, CH at C11 and C15), 6.76 (2H, d, J = 3.5 Hz, CH at C2 and C8), 6.49 (2H, d, J = 3.5 Hz, CH at C3 and C7).
Mp: 129-130℃.
1H NMR (CDCl3, 400 MHz): δ 7.38-7.48 (5H, m, CH at C11, C12, C13, C14 and C15), 6.54 (2H, d, J = 4.4 Hz, CH at C2 and C8), 5.74 (2H, d, J = 4.4 Hz, CH at C3 and C7), 5.77-5.70 (2H, brs, NH at N3 and N4), 3.59 (4H, t, J = 5.5 Hz, CH2 at C17 and C20), 3.44 (4H, q, J = 5.5 Hz, CH2 at C16 and C19), 3.40 (6H, s, CH3 at C18 and C21).
13C NMR (CDCl3, 100 MHz): δ 156.6 (C1 and C9), 135.0 (C10), 130.4 (CH at C11 and C15), 128.9 (C4 and C6), 131.3 (C5), 128.5 (CH at C13), 128.5 (CH at C2 and C8), 127.9 (CH at C12 and C14), 101.1 (CH at C3 and C7), 71.4 (CH2 at C17 and C20), 59.1 (CH3 at C18 and C21), 44.3 (CH2 at C16 and C19).
HRMS m/z [M+Na]+ Calcd for C21H25BF2N4NaO2 + 437.1931; Found 437.1931.
Mp: 169-170℃.
1H NMR (CDCl3, 400 MHz): δ 7.38 (2H, d, J = 8.7 Hz, CH at C12 and C14), 6.94 (2H, d, J = 8.7 Hz, CH at C11 and C15), 6.56 (2H, d, J = 4.2 Hz, CH at C2 and C8), 5.74 (2H, d, J = 4.2 Hz, CH at C3 and C7), 5.77-5.70 (2H, brs, NH at N3 and N4), 3.86 (3H, s, CH3 at C22), 3.59 (4H, t, J = 5.5 Hz, CH2 at C17 and C20), 3.44 (4H, q, J = 5.5 Hz, CH2 at C16 and C19), 3.40 (s, 6H, CH3 at C18 and C21).
13C NMR (CDCl3, 100 MHz): δ 160.0 (C13), 156.4 (C1 and C9), 131.6 (CH at C12 and C14), 131.2 (C5), 129.0 (C4 and C6), 128.5 (CH at C2 and C8), 127.4 (C10), 113.4 (CH at C11 and C15), 100.9 (CH at C3 and C7), 71.2 (CH2 at C17 and C20), 59.0 (CH3 at C18 and C21), 55.3 (CH3 at C22), 44.3 (CH2 at C16 and C19).
HRMS m/z [M+Na]+ Calcd for C22H27BN4O3F2Na+ 467.2036; Found 467.2050.
Mp: 129-130℃.
1H NMR (CDCl3, 400 MHz): δ 7.29 (2H, d, J = 8.5 Hz, CH at C12 and C14), 6.84 (2H, d, J = 8.5 Hz, CH at C11 and C15), 6.55 (2H, d, J = 4.3 Hz, CH at C2 and C8), 5.73 (2H, d, J = 4.3 Hz, CH at C3 and C7), 5.80-5.64 (2H, brs, NH at N3 and N4), 3.60 (4H, t, J = 5.4 Hz, CH2 at C17 and C20), 3.44 (4H, m, CH2 at C16 and C19), 3.40 (6H, s, CH3 at C18 and C21).
13C NMR (CDCl3, 100 MHz): δ 156.4 (C1 and C9), 156.3 (C13), 131.7 (CH at C12 and C14), 131.2 (C5), 129.0 (C4 and C6), 128.4 (CH at C2 and C8), 127.4 (C10), 114.9 (CH at C11 and C15), 101.0 (CH at C3 and C7), 71.2 (CH2 at C17 and C20), 59.0 (CH3 at C18 and C21), 44.2 (CH2 at C16 and C19).
HRMS m/z [M+Na]+ Calcd for C21H25BF2N4NaO3 + 453.1880; Found 453.1841.
Mp: 159-162℃.
1H NMR (CDCl3, 400 MHz): δ 7.38 (2H, d, J = 8.7 Hz, CH at C12 and C14), 7.01 (2H, d, J = 8.7 Hz, CH at C11 and C15), 6.56 (2H, d, J = 4.2 Hz, CH at C2 and C8), 5.74 (2H, d, J = 4.2 Hz, CH at C3 and C7), 5.77-5.70 (2H, brs, NH at N3 and N4), 4.74 (2H, d, J = 2.4 Hz, CH2 at C22), 3.59 (4H, t, J = 5.5 Hz, CH2 at C17 and C20), 3.44 (4H, q, J = 5.5 Hz, CH2 at C16 and C19), 3.40 (6H, s, CH3 at C18 and C21), 2.57 (1H, s, CH at C24).
13C NMR (CDCl3, 100 MHz): δ 158.0 (C13), 156.5 (C1 and C9), 131.6 (CH at C12 and C14), 131.5 (C5), 130.9 (C4 and C6), 129.0 (CH at C2 and C8), 128.4 (C10), 114.3 (CH at C11 and C15), 101.0 (CH at C3 and C7), 75.8 (CH2 at C22), 71.1 (CH2 at C17 and C20), 59.0 (CH3 at C18 and C21), 55.9 (CH3 at C22), 44.3 (CH2 at C16 and C19), 29.7 (C24).
HRMS m/z [M+Na]+ Calcd for C24H27BF2N4NaO3 + 491.2036; Found 491.2036.
Mp: 179-180℃.
1H NMR (CDCl3, 400 MHz): δ 8.23 (2H, d, J = 8.8 Hz, CH at C12 and C14), 7.62 (2H, d, J = 8.8 Hz, CH at C11 and C15), 6.45 (2H, d, J = 4.4 Hz, CH at C2 and C8), 5.81 (2H, br s, NH at N3 and N4), 5.79 (2H, d, J = 4.4 Hz, CH at C3 and C7), 3.60 (4H, t, J = 5.5 Hz, CH2 at C17 and C20), 3.45 (4H, q, J = 5.5 Hz, CH2 at C16 and C19), 3.40 (6H, s, CH3 at C18 and C21).
13C NMR (CDCl3, 100 MHz): δ 156.9 (C at C4 and C6), 148.0 (C at C13), 141.9 (C at C5), 131.2 (CH at C11 and C15), 128.5 (C at C1 and C9), 127.9 (CH at C2 and 8), 127.7 (CH at C10), 123.3 (CH at C12 and C14), 102.1 (CH at C3 and C7), 71.1 (CH2 at C17 and C20), 59.1 (CH3 at C18 and C21), 44.3 (CH2 at C16 and C19).
HRMS m/z: [M+Na]+ Calcd for C21H24BN5O4F2Na+ 482.1782; Found 482.1787.
Mp: 69-70℃.
1H NMR (CDCl3, 400 MHz): δ 7.25 (2H, d, J = 8.4 Hz, CH at C12 and C14), 6.70 (2H, d, J = 8.4 Hz, CH at C11 and C15), 6.61 (2H, d, J = 4.4 Hz, CH at C2 and C8), 5.73 (2H, d, J = 4.3 Hz, CH at C3 and C7), 5.68 (2H, brs, NH at N3 and N4), 3.59 (4H, t, J = 5.4 Hz, CH2 at C17 and C20), 3.43 (4H, m, CH2 at C16 and C19), 3.40 (6H, s, CH3 at C18 and C21).
13C NMR (CDCl3, 100 MHz): δ 156.3 (C at C1 and C9), 147.0 (C at C13), 132.0 (C at C5), 131.6 (CH at C12 and C14), 128.9 (C at C4 and C6), 128.4 (CH at C2 and C8), 125.1 (C at C10), 114.4 (CH at C11 and C15), 100.7 (CH at C3 and C7), 71.2 (CH2 at C17 and C20), 59.0 (CH3 at C18 and C21), 44.2 (CH2 at C16 and C19).
HRMS m/z [M+Na]+ Calcd for C21H26BF2N5NaO2 + 452.2040; Found 452.2045.
Mp: 139-140℃.
1H NMR (CDCl3, 400 MHz): δ 7.52 (2H, d, J = 8.4 Hz, CH at C12 and C14), 7.35 (2H, d, J = 8.4 Hz, CH at C11 and C15), 7.23 (1H, br s, NH at N5), 6.51 (2H, d, J = 4.4 Hz, CH at C2 and C8), 5.75 (2H, d, J = 4.4 Hz, CH at C3 and C7 ), 5.73 (2H, brs, NH at N3 and N4), 3.58 (4H, t, J = 5.4 Hz, CH2 at C17 and C20), 3.44 (4H, m, CH2 at C16 and C19), 3.40 (6H, s, CH3 at C18 and C20), 2.18 (3H, s, CH3 at C23).
13C NMR (CDCl3, 100 MHz): δ 168.3 (C at C1 and C9), 156.5 (C at C13), 138.3 (C at C5), 131.1 (CH at C12 and C14), 130.9 (C at C4 and C6), 128.9 (CH at C2 and C8), 128.3 (C at C10), 119.2 (CH at C11 and C15), 101.1 (CH at C3 and C7), 71.1 (CH2 at C17 and C20), 59.0 (CH3 at C18 and C21), 44.2 (CH2 at C16 and C19), 24.7 (CH3 at C23).
HRMS m/z [M+Na]+ Calcd for C23H28BF2N5NaO3 + 494.2145; Found 494.2151.
Mp: 99-100℃.
IR (KBr): 3416, 3306, 3177, 3111, 2928, 2868, 1667, 1603, 1555, 1468, 1427, 1427, 1341, 1306, 1244, 1192, 1165, 1094, 1057, 1013, 966, 889, 841, 781, 679, 561, 484, 415 cm-1.
1H NMR (CDCl3, 400 MHz): δ 7.57 (2H, d, J = 8.5 Hz, CH at C12 and C14), 7.40 (2H, d, J = 8.5 Hz, CH at C11 and C15), 7.22 (1H, brs, NH at N5), 6.55 (2H, d, J = 4.4 Hz, CH at C2 and C8), 5.75-5.72 (4H, m, CH at C2 and C8, NH at N3 and N4), 3.59 (4H, t, J = 5.4 Hz, CH2 at C17 and C20), 3.46 (4H, q, J = 5.6 Hz, CH at C16 and C19), 3.40 (6H, s, CH3 at C18 and C20), 2.39 (2H, t, J = 7.4 Hz, CH2 at C23), 1.76 (2H, m, CH2 at C24), 1.40-1.36 (4H, m, CH2 at C25 and C26), 0.92 (3H, m, CH3 at C27).
13C NMR (CDCl3, 100 MHz): δ 171.5 (C at C1 and C9), 156.5 (C at C13), 138.4 (C at C5), 131.1 (CH at C12 and C14), 130.8 (C at C4 and C6), 128.9 (CH at C2 and C8), 128.3 (C at C10), 119.1 (CH at C11 and C15), 101.1 (CH at C3 and C7), 71.1 (CH2 at C17 and C20), 59.1 (CH3 at C18 and C21), 44.2 (CH2 at C16 and C19), 37.9 (CH2 at C23), 31.4 (CH2 at C25), 25.3 (CH2 at C24), 22.4 (CH2 at C26), 14.0 (CH3 at C27).
HRMS m/z [M+Na]+ Calcd for C27H36BF2N5NaO3 + 550.2771; Found 550.2777.
1H NMR (CDCl3, 500 MHz): δ 7.68 (1H, s, CH at C17), 7.45 (2H, d, J = 8.4 Hz, CH at C12 and C14), 7.15 (2H, d, J = 8.4 Hz, CH at C11 and C15), 6.87 (2H, d, J = 4.2 Hz, CH at C2 and C8), 6.44 (2H, d, J = 4.2 Hz, CH at C3 and C7), 5.30 (2H, brs, NH at N3 and N4), 4.38 (2H, t, J = 7.2 Hz, CH2 at C17), 1.93 (2H, m, CH2 at C19), 1.35-1.20 (10H, m, (CH2)5 at C20-24), 0.90 (3H, m, CH3 at C25).
13C NMR (CDCl3, 125 MHz): δ 160.7 (C13), 144.2 (C1 and C9), 143.8 (C9), 143.2 (C15), 133.6 (C5), 132.3 (CH at C2 and C8), 131.4 (CH at C11 and C15), 125.2 (C10) , 122.7 (CH at C18), 118.6 (CH at C3 and C7), 62.1 (CH2 at C16), 50.5 (CH2 at C19), 31.5 (CH2), 30.2 (CH2), 28.6 (CH2 at C20), 26.4 (CH2), 22.5 (CH2), 14.0 (CH3 at C25).
HRMS m/z [M+Na]+ Calcd for C25H26BCl2F2N5NaO+ 554.1468; Found 554.1453.
1H NMR (CDCl3, 400 MHz): δ 7.63 (1H, s, CH at C17), 7.38 (2H, d, J = 8.4 Hz, CH at C12 and C14), 7.03 (2H, d, J = 8.4 Hz, CH at C11 and C15), 6.55 (2H, d, J = 4.2 Hz, CH at C2 and C8), 5.74 (2H, d, J = 4.2 Hz, CH at C3 and C7), 5.71 (2H, br s, NH at N3 and N4), 5.26 (2H, s, CH2 at C22), 4.36 (2H, t, J = 7.2 Hz, CH2 at C17), 3.59 (4H, t, J = 5.5 Hz, CH2 at C17 and C20), 3.43 (4H, d, J = 5.5 Hz, CH2 at C16 and C19), 3.40 (s, 6H, CH3 at C18 and C21), 1.93 (2H, m, CH2 at C19), 1.35-1.20 (10H, m, (CH2)5 at C20-24), 0.90 (3H, m, CH3 at C25).
13C NMR (CDCl3, 100 MHz): δ 158.7 (C13), 156.5 (C1 and C9), 144.0 (C23), 131.7 (CH at C2 and C8), 131.6 (C12 and C14), 129.0 (C5), 128.9 (CH at C2 and C8), 127.9 (C10), 122.5 (CH at C24), 114.3 (CH at C11 and C15), 101.0 (CH at C3 and C7), 71.1 (CH2 at C17 and C20), 62.2 (CH2 at C22), 59.0 (CH3 at C18 and C21), 50.5 (CH2 at C25), 31.5 (CH2), 30.2 (CH2), 28.6 (CH2 at C20), 26.4 (CH2), 22.5 (CH2), 14.0 (CH3 at C31).
HRMS m/z [M+Na]+ Calcd for C31H42BF2N7NaO3 + 632.3302; Found 632.3264.
1H NMR (CDCl3, 400 MHz): δ 7.63 (1H, s, CH at C17), 7.45-7.35 (4H, m, CH at C12 and C14), 7.31 (2H, m, CH at C11 and C15), 6.86 (2H, d, J = 4.2 Hz, CH at C2 and C8), 6.40 (2H, d, J = 4.2 Hz, CH at C3 and C7), 5.56 (2H, brs, NH at N3 and N4).
13C NMR (CDCl3, 100 MHz): δ 160.7 (C13), 144.2 (C1 and C9), 143.9 (C5), 143.8 (C17), 134.4 (C13 and C20), 133.6 (C4 and C6), 132.3 (CH at C12 and C14), 131.5 (CH at C2 and C8), 129.2 (CH at C21 and C25), 128.9 (CH at C23), 128.2 (CH at C22 and C24), 125.2 (C10), 122.9 (CH at C18), 118.7 (CH at C3 and C7), 115.0 (CH at C11 and C15), 62.2 (CH2 at C16), 54.4 (CH2 at C19).
HRMS m/z [M+Na]+ Calcd for C25H18BCl2F2N5NaO+ 546.0842; Found 546.0847.
Mp: 47-48℃.
1H NMR (CDCl3, 400 MHz): δ 7.56 (1H, s, CH at C17), 7.38-7.34 (5H, m, CH at C27-C31), 7.29 (2H, m, CH at C12 and C14), 7.00 (2H, d, J = 4.2 Hz, CH at C11 and C15), 6.53 (2H, d, J = 4.2 Hz, CH at C2 and C8), 5.72 (2H, d, J = 4.2 Hz, CH at C3 and C7), 5.73-5.70 (2H, brs, NH at N3 and N4), 5.22 (2H, s, CH2 at C22), 3.58 (4H, t, J = 5.5 Hz, CH2 at C17 and C20), 3.41 (4H, q, J = 5.5 Hz, CH2 at C16 and C19), 3.39 (6H, s, CH3 at C18 and C21).
13C NMR (CDCl3, 100 MHz): δ 158.7 (C13), 156.5 (C1 and C9), 144.4 (C23), 134.4 (C26), 131.6 (CH at C2 and C8), 130.9 (C5), 129.2 (CH at C27 and C31), 128.9 (CH at C29), 128.9 (C4 and C6), 128.9 (C5), 128.4 (CH at C28 and C30), 128.1 (CH at C12 and C14) , 127.9 (C10), 122.7 (CH at C24), 114.3 (CH at C11 and C15), 101.0 (CH at C3 and C7), 71.1 (CH2 at C17 and C20), 62.1 (CH2 at C22), 59.0 (CH3 at C18 and C21), 54.3 (CH2 at C25), 44.2 (CH2 at C16 and C19).
HRMS m/z [M+Na]+ Calcd for C31H34BF2N7NaO3 + 624.2676; Found 624.2759.
化合物7、8、12を吸光度が0.05以下となるように、アセトンまたは10 mM HEPES/NaOH(pH 7.4)、および100 mM NaClを用いて適宜希釈し、蛍光測定に用いた。蛍光測定には、日立分光蛍光光度計FL-7000を使用した。測定は全て25℃で行い、励起スペクトルについては、蛍光波長を578 nmとし、励起波長400-700 nmを掃引して測定を行い、一方、蛍光スペクトルについては、励起波長を564 nmとして蛍光波長570-700 nmを掃引して測定した。結果を図1に示す。
化合物5a、5b、5c、5d、5e、6、7、8、10、12の相対量子収率を測定した。
化合物5a、5b、5c、5d、5e、6、7、8、10、12をそれぞれ10-20 mgずつ精秤し、アセトンに溶解し、50 ml溶液を調製した。さらに、100倍希釈液を調製し、日立ダブルビーム分光光度計UV-2900を用い吸収スペクトルを測定し、各吸収極大波長におけるモル吸光係数を求めた。以降の測定に使用する各溶液の濃度は、本モル吸光係数に基づいて決定した。
化合物5a、5b、5c、5d、5e、6、7、8、10、12を吸光度が0.05以下となるようにアセトンを用いて適宜希釈し、蛍光測定に用いた。蛍光測定には、日立分光蛍光光度計FL-7000を使用した。測定は全て25℃で行い蛍光スペクトルについては、励起波長を543 nmとして蛍光波長550-700 nmを掃引して測定した。量子収率既知の蛍光物質としてはローダミンBのエタノール溶液を用い、蛍光スペクトル測定を行った。量子収率φは次式に従って算出した。結果を下表に示す。
φ=φ標準×(A標準/A)×(F/F標準)×(nアセトン 2/nエタノール 2)×(D/D標準)
ここで、φ標準、A標準、F標準、D標準はそれぞれローダミンBの量子収率、543 nmにおける吸光度、蛍光スペクトルのピーク半値幅の面積および希釈率を、A、F、Dはそれぞれ各色素の吸光度、蛍光スペクトルのピーク半値幅の面積および希釈率を、nアセトンとnエタノールはアセトンとエタノールの屈折率を表す。
予め50μMの化合物5d、5e、6、7、8、10、12のアセトン溶液を用意した。1 mlのアセトン、エチレングリコールまたは10 mM HEPES/NaOH (pH 7.4)、および100 mM NaClを25℃でインキュベートし、各アセトン溶液10μlを加え、蛍光測定に用いた。蛍光測定は、日立分光蛍光光度計FL-7000を使用し25℃で行い、励起波長を564 nmとする蛍光スペクトルを蛍光波長570-700 nmで掃引して測定し、各蛍光スペクトルに基づいて極大蛍光強度を求めた。予め測定しておいた溶液の吸光度から各濃度を求め、1μMの濃度の時の蛍光強度に補正し、アセトン溶媒中の蛍光強度を100%とした場合の、各溶媒中での相対蛍光強度を評価した。結果を図2に示す。
化合物10と化合物12は、黒バーと白バーが表す蛍光強度の差が最も大きく、極性変化に対する応答が鋭敏なことを示した。また、白バーが大きな負の値を示し、背景ノイズとなる水系での蛍光強度が小さいことを示した。
予め6μMの化合物6のアセトン溶液を用意した。各濃度のβシクロデキストリンまたはグルコースを含む10 mM HEPES/NaOH (pH 7.4)、100 mM NaCl 1 mlを25℃でインキュベートし、化合物6のアセトン溶液10μlを加え、蛍光測定に用いた。蛍光測定は、日立分光蛍光光度計FL-7000を使用し25℃で行い、励起波長を564 nmとする蛍光スペクトルを蛍光波長570-700 nmで掃引して測定し、各蛍光スペクトルに基づいて極大蛍光強度を求め、検量線を作成した。βシクロデキストリンについては良好な検量線が得られたが、グルコースについては得られなかった。
予め17μMの化合物10アセトン溶液を用意した。各濃度のβシクロデキストリンまたはグルコースを含む10 mM HEPES/NaOH (pH 7.4), 100 mM NaCl 1 mlを25℃でインキュベートし、化合物10アセトン溶液10μlを加え、蛍光測定に用いた。蛍光測定は、日立分光蛍光光度計FL-7000を使用し25℃で行い、励起波長を564 nmとする蛍光スペクトルを蛍光波長570-700 nmで掃引して測定し、各蛍光スペクトルに基づいて極大蛍光強度を求め、検量線を作成した。βシクロデキストリンについては良好な検量線が得られたが、グルコースについては得られなかった。
予め5μMの化合物12アセトン溶液を用意した。各濃度のβシクロデキストリン(ナカライテスク)、マルトデキストリン(メルク)またはグルコース(和光純薬)を含む10 mM HEPES/NaOH (pH 7.4)、100 mM NaCl 1mlを25℃でインキュベートし、化合物12アセトン溶液10μlを加え、蛍光測定に用いた。蛍光測定は、日立分光蛍光光度計FL-7000を使用し25℃で行い、励起波長を564 nmとする蛍光スペクトルを蛍光波長570-700 nmで掃引して測定し、各蛍光スペクトルに基づいて極大蛍光強度を求めた。また、タンパク質による蛍光強度への影響を確かめるため、塩化リゾチーム(ナカライテスク)を用い、同様の実験を行った。βシクロデキストリンについては良好な検量線が得られたが、グルコースについては得られなかった。リゾチームの影響は2 mg/mlでは無視できることを確認した。
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