CN117510551A - 吡啶磺酰胺铱络合物、制备方法及对nadh高选择性催化再生 - Google Patents
吡啶磺酰胺铱络合物、制备方法及对nadh高选择性催化再生 Download PDFInfo
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- CN117510551A CN117510551A CN202311174172.6A CN202311174172A CN117510551A CN 117510551 A CN117510551 A CN 117510551A CN 202311174172 A CN202311174172 A CN 202311174172A CN 117510551 A CN117510551 A CN 117510551A
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- Prior art keywords
- iridium complex
- nadh
- pyridine
- sulfonamide
- mmol
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- -1 Pyridine sulfonamide iridium Chemical compound 0.000 title claims abstract description 47
- 229930027945 nicotinamide-adenine dinucleotide Natural products 0.000 title claims abstract description 47
- BOPGDPNILDQYTO-NNYOXOHSSA-N nicotinamide-adenine dinucleotide Chemical compound C1=CCC(C(=O)N)=CN1[C@H]1[C@H](O)[C@H](O)[C@@H](COP(O)(=O)OP(O)(=O)OC[C@@H]2[C@H]([C@@H](O)[C@@H](O2)N2C3=NC=NC(N)=C3N=C2)O)O1 BOPGDPNILDQYTO-NNYOXOHSSA-N 0.000 title claims abstract description 44
- 230000008929 regeneration Effects 0.000 title claims abstract description 29
- 238000011069 regeneration method Methods 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 230000003197 catalytic effect Effects 0.000 title claims description 39
- 229910052741 iridium Inorganic materials 0.000 claims abstract description 76
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims abstract description 76
- 239000005515 coenzyme Substances 0.000 claims abstract description 31
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 48
- 239000003446 ligand Substances 0.000 claims description 22
- BAWFJGJZGIEFAR-NNYOXOHSSA-N NAD zwitterion Chemical compound NC(=O)C1=CC=C[N+]([C@H]2[C@@H]([C@H](O)[C@@H](COP([O-])(=O)OP(O)(=O)OC[C@@H]3[C@H]([C@@H](O)[C@@H](O3)N3C4=NC=NC(N)=C4N=C3)O)O2)O)=C1 BAWFJGJZGIEFAR-NNYOXOHSSA-N 0.000 claims description 17
- 229950006238 nadide Drugs 0.000 claims description 17
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- DWJMBQYORXLGAE-UHFFFAOYSA-N pyridine-2-sulfonamide Chemical compound NS(=O)(=O)C1=CC=CC=N1 DWJMBQYORXLGAE-UHFFFAOYSA-N 0.000 claims description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 239000012043 crude product Substances 0.000 claims description 7
- JQJOGAGLBDBMLU-UHFFFAOYSA-N pyridine-2-sulfonyl chloride Chemical compound ClS(=O)(=O)C1=CC=CC=N1 JQJOGAGLBDBMLU-UHFFFAOYSA-N 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 5
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 claims description 5
- 235000019254 sodium formate Nutrition 0.000 claims description 5
- 239000012295 chemical reaction liquid Substances 0.000 claims description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 4
- 239000003208 petroleum Substances 0.000 claims description 4
- NMKSBNZBSLHAKW-UHFFFAOYSA-N Cl.ClO Chemical compound Cl.ClO NMKSBNZBSLHAKW-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 150000001448 anilines Chemical class 0.000 claims description 3
- 235000019441 ethanol Nutrition 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- WHMDPDGBKYUEMW-UHFFFAOYSA-N pyridine-2-thiol Chemical compound SC1=CC=CC=N1 WHMDPDGBKYUEMW-UHFFFAOYSA-N 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 238000005694 sulfonylation reaction Methods 0.000 claims description 3
- 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 2
- BPVGZVMTGYBEJA-UHFFFAOYSA-N ClO.OS(O)(=O)=O Chemical compound ClO.OS(O)(=O)=O BPVGZVMTGYBEJA-UHFFFAOYSA-N 0.000 claims description 2
- 238000004587 chromatography analysis Methods 0.000 claims description 2
- 235000019253 formic acid Nutrition 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims 3
- HWCKGOZZJDHMNC-UHFFFAOYSA-M tetraethylammonium bromide Chemical compound [Br-].CC[N+](CC)(CC)CC HWCKGOZZJDHMNC-UHFFFAOYSA-M 0.000 claims 2
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 claims 1
- 239000004280 Sodium formate Substances 0.000 claims 1
- VZTDIZULWFCMLS-UHFFFAOYSA-N ammonium formate Chemical compound [NH4+].[O-]C=O VZTDIZULWFCMLS-UHFFFAOYSA-N 0.000 claims 1
- 229940044172 calcium formate Drugs 0.000 claims 1
- 235000019255 calcium formate Nutrition 0.000 claims 1
- 239000004281 calcium formate Substances 0.000 claims 1
- 238000004440 column chromatography Methods 0.000 claims 1
- 239000003480 eluent Substances 0.000 claims 1
- 238000004108 freeze drying Methods 0.000 claims 1
- AFQIYTIJXGTIEY-UHFFFAOYSA-N hydrogen carbonate;triethylazanium Chemical compound OC(O)=O.CCN(CC)CC AFQIYTIJXGTIEY-UHFFFAOYSA-N 0.000 claims 1
- WFIZEGIEIOHZCP-UHFFFAOYSA-M potassium formate Chemical compound [K+].[O-]C=O WFIZEGIEIOHZCP-UHFFFAOYSA-M 0.000 claims 1
- 229910021642 ultra pure water Inorganic materials 0.000 claims 1
- 239000012498 ultrapure water Substances 0.000 claims 1
- 238000005292 vacuum distillation Methods 0.000 claims 1
- SRWMQSFFRFWREA-UHFFFAOYSA-M zinc formate Chemical compound [Zn+2].[O-]C=O SRWMQSFFRFWREA-UHFFFAOYSA-M 0.000 claims 1
- 125000002524 organometallic group Chemical group 0.000 abstract description 13
- 238000006555 catalytic reaction Methods 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 abstract description 6
- 125000002097 pentamethylcyclopentadienyl group Chemical group 0.000 abstract description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 36
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 29
- 238000005481 NMR spectroscopy Methods 0.000 description 21
- 238000001228 spectrum Methods 0.000 description 14
- 239000003054 catalyst Substances 0.000 description 13
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 12
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 229960002989 glutamic acid Drugs 0.000 description 11
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 10
- 238000005984 hydrogenation reaction Methods 0.000 description 10
- SPKDKEYOMHVGPB-UHFFFAOYSA-N n-phenylpyridine-2-sulfonamide Chemical compound C=1C=CC=NC=1S(=O)(=O)NC1=CC=CC=C1 SPKDKEYOMHVGPB-UHFFFAOYSA-N 0.000 description 9
- 230000002195 synergetic effect Effects 0.000 description 9
- QIXDHVDGPXBRRD-UHFFFAOYSA-N 2,3,5-trimethylcyclohexa-2,5-diene-1,4-dione Chemical compound CC1=CC(=O)C(C)=C(C)C1=O QIXDHVDGPXBRRD-UHFFFAOYSA-N 0.000 description 8
- 101710088194 Dehydrogenase Proteins 0.000 description 8
- 108090000790 Enzymes Proteins 0.000 description 8
- 102000004190 Enzymes Human genes 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 150000002503 iridium Chemical class 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 7
- 101000833181 Schizosaccharomyces pombe (strain 972 / ATCC 24843) Glycerol dehydrogenase 1 Proteins 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 238000001819 mass spectrum Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- KPGXRSRHYNQIFN-UHFFFAOYSA-N 2-oxoglutaric acid Chemical compound OC(=O)CCC(=O)C(O)=O KPGXRSRHYNQIFN-UHFFFAOYSA-N 0.000 description 6
- 229930195714 L-glutamate Natural products 0.000 description 6
- YNJJJJLQPVLIEW-UHFFFAOYSA-M [Ir]Cl Chemical compound [Ir]Cl YNJJJJLQPVLIEW-UHFFFAOYSA-M 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- KPGXRSRHYNQIFN-UHFFFAOYSA-L 2-oxoglutarate(2-) Chemical compound [O-]C(=O)CCC(=O)C([O-])=O KPGXRSRHYNQIFN-UHFFFAOYSA-L 0.000 description 4
- 235000019445 benzyl alcohol Nutrition 0.000 description 4
- AUFZRCJENRSRLY-UHFFFAOYSA-N 2,3,5-trimethylhydroquinone Chemical compound CC1=CC(O)=C(C)C(C)=C1O AUFZRCJENRSRLY-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WCSWYZHPJSGROQ-UHFFFAOYSA-L Cl[Ir]Cl.CC1C(C)=C(C)C(C)=C1C Chemical class Cl[Ir]Cl.CC1C(C)=C(C)C(C)=C1C WCSWYZHPJSGROQ-UHFFFAOYSA-L 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 239000008366 buffered solution Substances 0.000 description 3
- RWSXRVCMGQZWBV-WDSKDSINSA-N glutathione Chemical compound OC(=O)[C@@H](N)CCC(=O)N[C@@H](CS)C(=O)NCC(O)=O RWSXRVCMGQZWBV-WDSKDSINSA-N 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- OAFASENZWXKNJX-UHFFFAOYSA-N 4-(pyridin-2-ylsulfonylamino)benzoic acid Chemical compound C1=CC(C(=O)O)=CC=C1NS(=O)(=O)C1=CC=CC=N1 OAFASENZWXKNJX-UHFFFAOYSA-N 0.000 description 2
- 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 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- PPJUTOIBXAURAL-UHFFFAOYSA-N N-(4-chlorophenyl)pyridine-2-sulfonamide Chemical compound ClC1=CC=C(C=C1)NS(=O)(=O)C1=NC=CC=C1 PPJUTOIBXAURAL-UHFFFAOYSA-N 0.000 description 2
- HWXBTNAVRSUOJR-UHFFFAOYSA-N alpha-hydroxyglutaric acid Natural products OC(=O)C(O)CCC(O)=O HWXBTNAVRSUOJR-UHFFFAOYSA-N 0.000 description 2
- 229940009533 alpha-ketoglutaric acid Drugs 0.000 description 2
- 150000003931 anilides Chemical class 0.000 description 2
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- HQHMTLQFDGTXHR-UHFFFAOYSA-N n-(4-methylphenyl)pyridine-2-sulfonamide Chemical compound C1=CC(C)=CC=C1NS(=O)(=O)C1=CC=CC=N1 HQHMTLQFDGTXHR-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 description 2
- IBBMAWULFFBRKK-UHFFFAOYSA-N picolinamide Chemical compound NC(=O)C1=CC=CC=N1 IBBMAWULFFBRKK-UHFFFAOYSA-N 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000019491 signal transduction Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 125000003396 thiol group Chemical group [H]S* 0.000 description 2
- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 description 1
- YBAZINRZQSAIAY-UHFFFAOYSA-N 4-aminobenzonitrile Chemical compound NC1=CC=C(C#N)C=C1 YBAZINRZQSAIAY-UHFFFAOYSA-N 0.000 description 1
- QSNSCYSYFYORTR-UHFFFAOYSA-N 4-chloroaniline Chemical group NC1=CC=C(Cl)C=C1 QSNSCYSYFYORTR-UHFFFAOYSA-N 0.000 description 1
- MBAJNQDWJUHYOF-UHFFFAOYSA-N 7h-purin-6-amine;pyridine-3-carboxamide Chemical compound NC(=O)C1=CC=CN=C1.NC1=NC=NC2=C1NC=N2 MBAJNQDWJUHYOF-UHFFFAOYSA-N 0.000 description 1
- 229930024421 Adenine Natural products 0.000 description 1
- GFFGJBXGBJISGV-UHFFFAOYSA-N Adenine Chemical compound NC1=NC=NC2=C1N=CN2 GFFGJBXGBJISGV-UHFFFAOYSA-N 0.000 description 1
- 108091003079 Bovine Serum Albumin Proteins 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 108090000698 Formate Dehydrogenases Proteins 0.000 description 1
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 1
- 108010024636 Glutathione Proteins 0.000 description 1
- 108010053070 Glutathione Disulfide Proteins 0.000 description 1
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- SAPGFVHLOUTPAR-UHFFFAOYSA-N [Ir].NC(=O)c1ccccn1 Chemical compound [Ir].NC(=O)c1ccccn1 SAPGFVHLOUTPAR-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229960000643 adenine Drugs 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 229940024606 amino acid Drugs 0.000 description 1
- 235000001014 amino acid Nutrition 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 238000012984 biological imaging Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229940098773 bovine serum albumin Drugs 0.000 description 1
- FAKRSMQSSFJEIM-RQJHMYQMSA-N captopril Chemical compound SC[C@@H](C)C(=O)N1CCC[C@H]1C(O)=O FAKRSMQSSFJEIM-RQJHMYQMSA-N 0.000 description 1
- 229960000830 captopril Drugs 0.000 description 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
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- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 description 1
- 235000018417 cysteine Nutrition 0.000 description 1
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- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229960003180 glutathione Drugs 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- BHAAPTBBJKJZER-UHFFFAOYSA-N p-anisidine Chemical compound COC1=CC=C(N)C=C1 BHAAPTBBJKJZER-UHFFFAOYSA-N 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 239000008055 phosphate buffer solution Substances 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 230000004962 physiological condition Effects 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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Classifications
-
- 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
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
- C07F15/0006—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table compounds of the platinum group
- C07F15/0033—Iridium compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/22—Organic complexes
- B01J31/2282—Unsaturated compounds used as ligands
- B01J31/2295—Cyclic compounds, e.g. cyclopentadienyls
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H19/00—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
- C07H19/02—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
- C07H19/04—Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
- C07H19/16—Purine radicals
- C07H19/20—Purine radicals with the saccharide radical esterified by phosphoric or polyphosphoric acids
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Abstract
本发明涉及有机金属络合物催化领域,具体公开了一种能够高效、高选择性催化辅酶NADH再生的有机金属铱络合物及其制备方法,其中有机金属铱络合物为一种新的五甲基环戊二烯基(Cp*)吡啶磺酰胺铱络合物。本发明的有益之处在于,该有机金属铱络合物能够高效、高选择性的催化氧化型辅酶NAD+低温加氢转化为还原型辅酶NADH,并展现出了良好的生物相容性。
Description
技术领域
本发明涉及有机金属络合物的制备及催化化学技术领域,具体地说,涉及有机金属铱络合物的设计及制备方法,涉及有机金属铱络合物在催化还原型辅酶烟酰胺腺嘌呤二核苷酸NADH再生合成中的应用。
背景技术
当前,生物相容性金属有机催化剂作为化学生物学的新兴前沿,在疾病治疗、生物成像与诊断、生化协同催化制备等方面都显示出了重要的应用价值。基于金属-有机催化剂和生物酶的生物化学级联催化系统是一种有潜力的、独特的合成方法,它可以将化学催化和生物催化的各种优点结合起来。然而,建立生化级联催化体系主要面临两个挑战:(1)开发辅酶烟酰胺腺嘌呤二核苷酸NAD+/NADH的高效化学催化再生催化剂;(2)解决化学催化剂与相应酶的不相容性问题。NAD+/NADH在生物代谢过程中起着至关重要的作用,与人体健康密切相关。因此,研究人员开发了各种方法来模拟NAD+与NADH的相互催化转化,包括电催化、光催化、化学催化、金属-有机催化等。其中,金属-有机催化因具有多样性、易修饰、耐水耐氧等优点,已成为一种重要的催化方式。对各种生物相容性金属-有机催化反应的广泛研究,也为NAD+/NADH的高效再生提供了保证。
在各种金属-有机催化剂中,铱-有机催化剂已被证明在复杂的生物环境中具有活性。以往的研究表明,吡啶酰胺型铱络合物对甲酸分解、醛还原具有突出的催化性能,这主要得益于N¯阴离子的强给电子效应。吡啶酰胺铱络合物已经被证明,在生理条件下对催化还原型辅酶烟酰胺腺嘌呤二核苷酸NADH再生表现出优异的催化活性,甚至超过了一些相关的生物酶(如甲酸脱氢酶)。但现有高活性辅酶NADH再生金属铱络合物催化剂,对于催化辅酶NADH的选择性仍然较低,因此极大的限制了高活性金属铱络合物催化剂在化学-生物协同催化中的应用。
基于此,本发明通过调节配体的电负性,合成了一种新的五甲基环戊二烯基(Cp*)吡啶磺酰胺铱络合物,该络合物不仅展现出了出色的辅酶NADH再生催化性能,但对其他酶催化底物(α-酮戊二酸、苯甲醛和三甲基对苯醌(TMBQ))的催化活性明显受限。如此,基于所发明的吡啶磺酰胺铱络合物对辅酶NADH出色的选择性催化再生性能,以及良好的生物相容性,能够被应用于构建更加优异的化学-酶协同催化体系,展现出了出色的化学-生物协同制备性能。
发明内容
为解决现有高活性辅酶NADH再生用金属铱络合物催化剂的低选择性问题以及在化学-生物协同催化应用中的局限性,本发明的第一个目的在于:提供一种结构稳定、生物相容性好、对催化辅酶NADH再生具有高效、高选择性特点的新型有机金属铱络合物;本发明的第二个目的在于:提供一种合成路线简单、产率高的制备上述金属铱络合物的方法。
为实现上述第一个目的,本发明采取了以下技术方案:
一种能够高选择性催化辅酶NADH再生的有机金属铱络合物,所述金属铱络合物能够高效的催化氧化型辅酶NAD+加氢再生还原型辅酶NADH,但对其他酶催化底物(α-酮戊二酸、苯甲醛和三甲基对苯醌(TMBQ))的催化活性明显较低,其特征在于, 所述铱络合物为一种新的五甲基环戊二烯基(Cp*)吡啶磺酰胺铱络合物,结构式如式1所示。
为实现上述第二个目的,本发明采取了以下技术方案:
一种制备式1所示能够高选择性催化辅酶NADH再生的有机金属铱络合物的方法,其特征在于,包括以下步骤:
步骤1: 将原料2-巯基吡啶溶于二氯甲烷溶剂中,冷却至零下10-5摄氏度下,加入混酸浓盐酸-次氯酸或浓硫酸-次氯酸进行磺酰化反应,反应结束后,混合液用二氯甲烷萃取、无水硫酸钠干燥后得到活化的中间体2-吡啶磺酰氯;
步骤2:将步骤1得到的中间体2-吡啶磺酰氯与各种不同取代的苯胺化合物混合,在干燥的二氯甲烷或乙腈或四氢呋喃溶剂中反应10到30小时;
步骤3:向步骤2的反应液中加入一定量二氯甲烷,依次用浓度为1.0摩尔/升的磷酸溶液冲洗三次、去离子水冲洗三次、无水硫酸钠干燥,加压蒸馏的到粗产品2-吡啶磺酰胺型配体;
步骤4:将步骤3得到的粗产品2-吡啶磺酰胺型配体采用硅胶正相色谱柱,以二氯甲烷/石油醚为流动相进行分离,得到纯的2-吡啶磺酰胺型配体,产率70%~90%;
步骤 5:将步骤4得到纯的2-吡啶磺酰胺型配体、五甲基环戊二烯二氯铱二聚体和六氟磷酸铵溶于无水乙醇中,氮气保护下,回流反应10到24小时;
步骤6:将步骤5的反应液冷却至室温,过滤、乙醇冲洗3次,收集固体即为纯的式1所示吡啶磺酰胺型铱络合物。
优选的,在步骤2中,所述中间体2-吡啶磺酰氯与各种不同取代的苯胺化合物的摩尔比为1:1~10。
优选的,在步骤4中,所述流动相二氯甲烷与石油醚的体积比为1:0.1~10。
优选的,在步骤5中,所述2-吡啶磺酰胺型配体与五甲基环戊二烯二氯化铱二聚体和六氟磷酸铵的摩尔比为0.5~5 : 1: 2~10。
本发明的有益之处在于:
本发明提供的有机金属铱络合物,结构稳定,有利于在室温、空气、潮湿环境中长期保存;
(2)本发明提供的有机金属铱络合物能够高效、高选择性的催化氧化型辅酶NAD+低温加氢转化为还原型辅酶NADH,但对其他酶催化底物(α-酮戊二酸、苯甲醛和三甲基对苯醌(TMBQ))的催化活性明显较低,有利于与相关的生物脱氢酶结合,构建出色的化学-酶协同催化体系,应用于特殊生物化学品L-谷氨酸、三甲基对苯二酚的制备。
附图说明
图1是式1所示铱络合物的合成路线图;
图2是式1所示铱络合物催化氧化型辅酶NAD+加氢制备还原型辅酶NADH的反应示意图,以及与2-吡啶苯酰胺铱络合物5催化再生辅酶NADH的产率比较示意图;
图3是式1所示铱络合物催化苯甲醛加氢制备苯甲醇、三甲基对苯醌加氢制备三甲基对苯二酚和α-酮戊二酸加氢制备L-谷氨酸的反应示意图,以及与2-吡啶苯酰胺铱络合物5催化加氢制备苯甲醇、三甲基对苯二酚以及L-谷氨酸的产率比较示意图;
图4是式1铱络合物1a在多种生物分子存在下,铱络合物1a对NAD+加氢制备还原型辅酶NADH的产率比较示意图;
图5是式1铱络合物1a-f与L-谷氨酸脱氢酶GLDH相结合,构建的化学-酶级联催化体系,生产L-谷氨酸的产率比较示意图。
实施方式
以下结合附图和具体实施例对本发明做具体介绍。
新型吡啶磺酰胺型铱络合物的结构
本发明提供的高效、高选择性催化辅酶NADH再生的铱络合物结构中,配体N-(4-取代苯基)吡啶-2-磺酰胺中的两个氮原子与金属铱进行配位,形成稳定的五元环结构,金属铱进一步与五甲基环戊二烯基(Cp*)和氯离子(Cl-)进行单配位形成稳定的夹心结构铱络合物,结构式具体如式1所示。
本发明提供的新型吡啶磺酰胺型铱络合物的制备方法
一种制备式1所示能够高选择性催化辅酶NADH再生的有机金属铱络合物的方法,其特征在于,包括以下步骤:
本发明提供的制备式1所示,高选择性催化辅酶NADH再生的有机金属铱络合物的方法,具体合成路线如附图1所示。
实施例1、制备N-苯基吡啶-2-磺酰胺五甲基环戊二烯(Cp*)氯代铱络合物1a的制备方法,具体包括如下步骤:
步骤1:将原料1.0 克 2-巯基吡啶溶于20毫升二氯甲烷溶剂中,冷却至零下10-5摄氏度下,加入20毫升体积比为1:1的浓盐酸-次氯酸进行磺酰化反应,反应10到30分钟后,混合液用100毫升二氯甲烷萃取、10克无水硫酸钠干燥后得到活化的中间体2-吡啶磺酰氯;
步骤2:将得到的中间体2-吡啶磺酰氯(约9.0 mmol)与苯胺(1.67g,18.0 mmol)混合,在干燥的二氯甲烷或乙腈或四氢呋喃溶剂中反应24小时;
步骤3:向反应液中加入100~200毫升二氯甲烷,依次用50毫升浓度为1.0摩尔/升的磷酸溶液冲洗三次、50毫升去离子水冲洗三次、50克无水硫酸钠干燥,加压蒸馏的到中间体粗产品N-苯基吡啶-2-磺酰胺;
步骤4:将步骤3所得到的中间体粗产品N-苯基吡啶-2-磺酰胺采用硅胶正相色谱柱,以二氯甲烷/石油醚= 1:5为流动相进行分离,得到纯的N-苯基吡啶-2-磺酰胺1.79 g(7.67 mmol),产率85.2 %;
步骤5:将步骤4所得到纯的配体N-苯基吡啶-2-磺酰胺(58.5 mg,0.25 mmol)、五甲基环戊二烯二氯铱二聚体Ir-dimer (100 mg,0.125 mmol)、六氟磷酸铵(81.5 mg,0.5mmol)溶于20毫升无水乙醇中,氮气保护下,80摄氏度回流反应24小时;
步骤6:将步骤5的反应液冷却至室温,过滤、20毫升乙醇冲洗3次,收集固体即为纯的铱络合物1a 56.322 mg(0.095 mmol),产率75.6 %。
经检测,步骤4得到的中间产物的核磁共振氢谱、碳谱和质谱数据分别如下:
1H NMR (400 MHz, CDCl3) δ 8.81 – 8.67 (m, 1H), 8.04 (s, 1H), 7.90 (d,J = 7.8 Hz, 1H), 7.81 (td, J = 7.7, 1.7 Hz, 1H), 7.46 (ddd, J = 7.5, 4.7, 1.0Hz, 1H), 7.21 (d, J = 4.0 Hz, 4H), 7.13 – 7.02 (m, 1H);
13C NMR (101 MHz, CDCl3) δ 156.18 (s), 150.10 (s), 138.05 (s), 136.10(s), 129.22 (s), 127.00 (s), 125.68 (s), 123.16 (s), 122.69 (s);
MS (ESI): m /z cacld for ([M+Na+]+) C11H10N2NaO2S 257.0361; found257.0362。
经检测,步骤6得到的铱络合物1a核磁共振氢谱、碳谱和质谱数据分别如下:
1H NMR (600 MHz, DMSO) δ 8.76 (d, J = 5.4 Hz, 1H), 8.27 (td, J = 7.8,1.1 Hz, 1H), 7.93 (d, J = 7.8 Hz, 1H), 7.85 – 7.78 (m, 1H), 7.56 (d, J = 7.8Hz, 2H), 7.17 (t, J = 7.8 Hz, 2H), 6.91 (t, J = 7.3 Hz, 1H), 1.37 (s, 15H);
13C NMR (151 MHz, DMSO) δ 157.25 (s), 153.81 (s), 145.69 (s), 142.08(s), 129.49 (s), 128.36 (s), 124.71 (s), 122.14 (s), 121.05 (s), 87.35 (s),8.55 (s);
MS (ESI): m/z cacld for ([M-Cl-]+) C21H24IrN2O2S 561.1188; found561.1206。
实施例2、制备N-(4-羧基苯基)吡啶-2-磺酰胺五甲基环戊二烯(Cp*)氯代铱络合物1b的制备方法,具体制备铱络合物1a的步骤基本一致,不同之处在于,
将步骤2所述的苯胺替换为4-羧基苯胺(2.47 g,18.0 mmol);
步骤3、4、5所述的N-苯基吡啶-2-磺酰胺配体分别替换为N-(4-羧基苯基)吡啶-2-磺酰胺;
步骤4所述的得到的纯的配体N-(4-羧基苯基)吡啶-2-磺酰胺产率为88.3 %;
步骤6所述的铱络合物1b的产率分别为80.2 %。
经检测,步骤6得到的铱络合物1b核磁共振氢谱、碳谱和质谱数据分别如下:
1H NMR (600 MHz, DMSO) δ 12.49 (s, 1H), 8.79 (d, J = 5.3 Hz, 1H),8.29 (td, J = 7.8, 1.3 Hz, 1H), 7.97 (d, J = 7.7 Hz, 1H), 7.86 – 7.83 (m,1H), 7.78 – 7.73 (m, 2H), 7.65 – 7.60 (m, 2H), 1.39 (s, 15H);
13C NMR (151 MHz, DMSO) δ 167.70 (s), 156.89 (s), 153.96 (s), 150.51(s), 142.27 (s), 129.99 (s), 129.83 (s), 123.68 (s), 123.57 (s), 121.40 (s),87.63 (s), 87.63 (s), 8.61 (s), 8.61 (s);
MS (ESI): m/z cacld for ([M-Cl-]+) C22H24IrN2O4S 605.1086; found605.1094。
实施例3、制备N-(4-羧基苯基)吡啶-2-磺酰胺五甲基环戊二烯(Cp*)氯代铱络合物1c的制备方法,具体制备铱络合物1a的步骤基本一致,不同之处在于,
将步骤2所述的苯胺替换为4-氰基苯胺(2.12 g,18.0 mmol);
步骤3、4、5所述的N-苯基吡啶-2-磺酰胺配体分别替换为N-(4-氰基苯基)吡啶-2-磺酰胺、;
步骤4所述的得到的纯的配体N-(4-氰基苯基)吡啶-2-磺酰胺、N-(4-甲氧基苯基)吡啶-2-磺酰胺的产率为84.6%;
步骤6所述的铱络合物1c的产率为73.6 %。
经检测,步骤6得到的铱络合物1c核磁共振氢谱、碳谱和质谱数据分别如下:
1H NMR (600 MHz, DMSO) δ 8.80 (d, J = 5.4 Hz, 1H), 8.30 (dd, J =11.3, 4.3 Hz, 1H), 7.99 (d, J = 7.8 Hz, 1H), 7.86 (dd, J = 9.6, 3.5 Hz, 1H),7.67 (d, J = 8.7 Hz, 2H), 7.63 (d, J = 8.7 Hz, 2H), 1.40 (s, 15H);
13C NMR (151 MHz, DMSO) δ 156.63 (s), 154.04 (s), 150.75 (s), 142.39(s), 132.74 (s), 130.04 (s), 124.34 (s), 121.57 (s), 120.09 (s), 102.93 (s),87.80 (s), 8.64 (s);
MS (ESI): m/z cacld for ([M-Cl-]+) C23H23IrN3O2S 586.1140; found586.1151。
实施例4、制备N-(4-羧基苯基)吡啶-2-磺酰胺五甲基环戊二烯(Cp*)氯代铱络合物1d的制备方法,具体制备铱络合物1a的步骤基本一致,不同之处在于,
将步骤2所述的苯胺替换为4-甲氧基苯胺(2.21 g,18.0 mmol);
步骤3、4、5所述的N-苯基吡啶-2-磺酰胺配体分别替换为N-(4-甲氧基苯基)吡啶-2-磺酰胺;
步骤4所述的得到的纯的配体N-(4-甲氧基苯基)吡啶-2-磺酰胺的产率为89.4%;
步骤6所述的铱络合物1d的产率为68.6 %。
经检测,步骤6得到的铱络合物1d核磁共振氢谱、碳谱和质谱数据分别如下:
1H NMR (600 MHz, DMSO) δ 8.74 (d, J = 5.4 Hz, 1H), 8.25 (td, J = 7.8,1.0 Hz, 1H), 7.90 (d, J = 7.8 Hz, 1H), 7.84 – 7.75 (m, 1H), 7.46 (d, J = 8.9Hz, 2H), 6.77 (d, J = 8.9 Hz, 2H), 3.70 (s, 3H), 1.38 (s, 15H);
13C NMR (151 MHz, DMSO) δ 157.26 (s), 155.04 (s), 153.74 (s), 141.99(s), 138.51 (s), 129.33 (s), 126.05 (s), 120.88 (s), 113.65 (s), 87.27 (s),55.59 (s), 8.57 (s);
MS (ESI): m/z cacld for ([M-Cl-]+) C22H26IrN2O3S 591.1293; found591.1312。
实施例5、制备N-(4-羧基苯基)吡啶-2-磺酰胺五甲基环戊二烯(Cp*)氯代铱络合物1e的制备方法,具体制备铱络合物1a的步骤基本一致,不同之处在于,
将步骤2所述的苯胺替换为4-甲基苯胺(1.93 18.0 mmol);
步骤3、4、5所述的N-苯基吡啶-2-磺酰胺配体替换为N-(4-甲基苯基)吡啶-2-磺酰胺;
步骤4所述的得到的纯的配体N-(4-甲基苯基)吡啶-2-磺酰胺的产率为90.1%;
步骤6所述的铱络合物1e的产率为70.4 %。
经检测,步骤6得到的铱络合物1e核磁共振氢谱、碳谱和质谱数据分别如下:
1H NMR (600 MHz, DMSO) δ 8.75 (d, J = 5.3 Hz, 1H), 8.26 (td, J = 7.8,1.2 Hz, 1H), 7.91 (d, J = 7.8 Hz, 1H), 7.82 – 7.78 (m, 1H), 7.44 (d, J = 8.3Hz, 2H), 6.98 (d, J = 8.2 Hz, 2H), 2.23 (s, 3H), 1.38 (s, 15H);
13C NMR (151 MHz, DMSO) δ 157.29 (s), 153.76 (s), 142.95 (s), 142.02(s), 130.93 (s), 129.40 (d, J = 3.9 Hz), 128.81 (s), 124.94 (s), 124.75 (s),120.95 (s), 87.28 (s), 20.87 (s), 8.57 (s);
MS (ESI): m/z cacld for ([M-Cl-]+)C22H26IrN2O2S 575.1344; found575.1366。
实施例6、制备N-(4-羧基苯基)吡啶-2-磺酰胺五甲基环戊二烯(Cp*)氯代铱络合物1f的制备方法,具体制备铱络合物1a的步骤基本一致,不同之处在于,
将步骤2所述的苯胺替换为4-氯苯胺(2.29 g,18.0 mmol);
步骤3、4、5所述的N-苯基吡啶-2-磺酰胺配体分别替换为N-(4-氯苯基)吡啶-2-磺酰胺;
步骤4所述的得到的纯的配体N-(4-氯苯基)吡啶-2-磺酰胺的产率为87.2 %;
步骤6所述的铱络合物1f的产率为78.4%。
经检测,步骤6得到的铱络合物1f核磁共振氢谱、碳谱和质谱数据分别如下:
1H NMR (600 MHz, DMSO) δ 8.77 (d, J = 5.4 Hz, 1H), 8.28 (td, J = 7.7,0.8 Hz, 1H), 7.94 (d, J = 7.8 Hz, 1H), 7.82 (t, J = 6.2 Hz, 1H), 7.55 (d, J =8.8 Hz, 2H), 7.23 (d, J = 8.8 Hz, 2H), 1.39 (s, 15H);
13C NMR (151 MHz, DMSO) δ 156.93 (s), 153.88 (s), 144.74 (s), 142.19(s), 129.66 (s), 128.24 (s), 126.09 (s), 125.84 (s), 121.18 (s), 87.49 (s),8.61 (s);
MS (ESI): m/z cacld for ([M-Cl-]+) C21H23ClIrN2O2S 595.0798; found595.0802。
由上述可知,本发明提供的制备铱络合物的方法,合成路线简单,产率高,易于大量获取铱络合物。
本发明提供的新型吡啶磺酰胺型铱络合物的用于催化辅酶NADH再生的特点及性能
实施例7、所提供铱络合物催化辅酶NADH再生活性
为了评价所制备络合物1a-f催化辅酶NADH的再生性能,并与已报到高活性2-吡啶苯酰胺铱络合物5进行了比较。在磷酸盐缓冲溶液中(0.2 M,pH = 7.4), NAD+ 浓度为8mmol/L,HCOONa 浓度为0.1 mol/L,铱络合物含量为0.1 mol%条件下,37摄氏度反应0.5 小时。如附图2所示,2-吡啶苯酰胺铱络合物5和式1所示络合物1a-f均表现出了出色的辅酶NADH再生性能,2-吡啶苯酰胺铱络合物5的NADH产率为68.2%,相同条件下1a-f的NADH产率分别达到了77.3 %、77.8 %、73.32 %、74.14 %、68.2 %、50.3 %,不同取代的铱络合物催化活性的差异可归因于络合物自身电负性的差异。
实施例8、所提供铱络合物对催化辅酶NADH再生的选择性
化学催化剂与酶之间的协同性能对于建立化学-酶级联催化体系至关重要。为了实现这一点,催化剂需要对底物保持较低的催化活性,但对NADH再生提供高度选择性的催化能力。因此,本发明考察了铱络合物1a-f对多种脱氢酶催化底物的直接催化加氢性能,包括苯甲醛、三甲基对苯醌和α-酮戊二酸,并与络合物5进行了比较。在磷酸盐缓冲溶液中(0.2 M,pH = 7.4), 加氢底物浓度为30 mmol/L,HCOONa 浓度为100 mmol/L,铱络合物含量为0.1 mol%条件下,37摄氏度反应1 小时。如附图3A所示,2-吡啶苯酰胺铱络合物5对三种不同底物的加氢性能均明显高于本发明所提供的铱络合物,2-吡啶苯酰胺铱络合物5对苯甲醛加氢制备苯甲醇的产率高达98.5%,而本发明提供的铱络合物对苯加氢加氢的最高苯甲醇产率仅为57.9 %,相同取代基时,本发明提供的铱络合物1a的苯甲醇产率仅为38.2%。在相同条件下,2-吡啶苯酰胺铱络合物5对三甲基对苯醌TMBQ加氢制备相应氢醌TMHQ的产率达到了61.5% (附图3B),而本发明提供的铱络合物1a-f,TMHQ的产率均低于30.0%。进一步,如图3C所示,2-吡啶苯酰胺铱络合物5催化α-酮戊二酸制备L-谷氨酸产率为1.0%,而本发明提供的铱络合物1a-f几乎不会产生L -谷氨酸。
这些结果表明,与2-吡啶苯酰胺铱络合物5相比,本发明提供的铱络合物对催化辅酶NADH再生具有更出色的选择性,更适合应用于高效化学-酶级联催化体系的构建。
实施例9、所提供铱络合物的生物相容性
建立一个强大的化学-酶级联催化体系,化学催化剂的生物相容性是至关重要,因此,本发明研究了所制备铱络合对各种生物分子的相容性。在多种生物分子(包括氨基酸、核碱基、蛋白质、葡萄糖和盐)存在下,考察了所发明铱络合物1a对NAD+加氢的催化性能。在磷酸盐缓冲溶液中(0.2 M,pH = 7.4),包含一定浓度的各种不同生物分子,NAD+ 浓度为8mmol/L,HCOONa 浓度为0.1 mol/L,铱络合物含量为0.1 mol%条件下,37摄氏度反应0.5 小时。如附图4所示,腺嘌呤Ade、葡萄糖GLu、醋酸钠AcONa、氧化谷胱甘肽GSSG、以及L-谷氨酸脱氢酶GLDH对铱络合物1a的催化NADH再生性能几乎没有影响,而含有游离巯基的生物分子还原型谷胱甘肽GSH、半胱氨酸Cys、卡托普利CAP、牛血清蛋白BSA和脱氢酶ADH则会导致铱络合物的活性明显降低。
这些结果与已报到铱络合物的研究结果相似,表明本发明所提供的铱络合物与大多数生物分子具有良好的相容性,但对巯基的抑制能力较差。
本发明提供的新型吡啶磺酰胺型铱络合物在化学-生物酶协同催化体系中的应用
实施例9、所提供铱络合物与L-谷氨酸脱氢酶GLDH协同催化制备L-谷氨酸脱
基于所提供的铱络合物对催化NADH再生的高活性以及高选择性,本发明将铱络合物1a-f与L-谷氨酸脱氢酶GLDH相结合,构建了一种高效的化学-酶级联催化体系,用于生产L-谷氨酸。在磷酸盐缓冲溶液中(0.2 M,pH = 7.4),包含10.0 U GLDH,1.0 mmol/L NAD+,0.1 mol/L HCOONa,50.0 mmol/L (NH4)2SO4, 铱络合物含量为0.1 mol%条件下,37摄氏度反应24 小时。如附图5所示,当仅使用铱络合物催化α-酮戊二酸加氢制备L-谷氨酸时,L-谷氨酸的产率均小于5.0 %;但相同条件下,采用铱络合和GLDH组成的级联催化体系,L-谷氨酸产率均明显提升到50.0%。其中,络合物1e组成的级联催化体系对L-谷氨酸的产率的提高最大,从0.66 %提高到62.8%。
上述结果表明,本发明提供的铱络合物具有良好的NADH再生活性、良好的生物相容性和α-酮戊二酸的高效加氢能力,同时能够与L-谷氨酸脱氢酶GLDH相结合,构建出色的化学-酶级联催化体系,用于L-谷氨酸的高效制备。
Claims (3)
1.“吡啶磺酰胺铱络合物、制备方法及对NADH高选择性催化再生”,其特征在于, 吡啶磺酰胺型铱络合物结构。
2.根据权利要求1所述的“吡啶磺酰胺铱络合物、制备方法及对NADH高选择性催化再生”中,其特征在于,吡啶苯磺酰胺型铱络合物的制备步骤如下:
将原料1.0 克 2-巯基吡啶(9.0 mmol)溶于10~50毫升二氯甲烷溶剂中,冷却至零下10-5摄氏度下,加入20~100毫升浓盐酸-次氯酸(1:1-10)或浓硫酸-次氯酸 (1:1-10)进行磺酰化反应,反应10到30分钟后,混合液用50~100毫升二氯甲烷萃取、10~20克无水硫酸钠干燥后得到活化的中间体2-吡啶磺酰氯;
将步骤(1)得到的中间体2-吡啶磺酰氯与各种不同取代的苯胺化合物混合,在干燥的二氯甲烷或乙腈或四氢呋喃溶剂中反应10到30小时;
向反应液中加入100~200毫升二氯甲烷,依次用50毫升浓度为1.0摩尔/升的磷酸溶液冲洗三次、50毫升去离子水冲洗三次、20~50克无水硫酸钠干燥,减压蒸馏的到粗产品2-吡啶磺酰胺型配体;
粗产品2-吡啶磺酰胺型配体采用硅胶正相色谱柱,以二氯甲烷/石油醚= 1-10:0.1-10为流动相进行分离,得到纯的2-吡啶磺酰胺型配体,产率70%~90%;
将纯的2-吡啶磺酰胺型配体(0.25mmol)、[Cp*IrCl2]2 Ir-dimer (0.125mmol)、六氟磷酸铵(0.5 mmol)溶于10~20毫升无水乙醇中,氮气保护下,80摄氏度回流反应10到24小时;
将步骤(5)的反应液冷却至室温,过滤、20毫升乙醇冲洗3次,收集固体即为纯的式1所示吡啶苯磺酰胺型铱络合物。
3.根据权利要求1所述的“吡啶磺酰胺铱络合物、制备方法及对NADH高选择性催化再生”中,其特征在于,所述铱络合物对辅酶NADH的再生条件如下:
(1)将氧化型辅酶烟酰胺腺嘌呤二核苷酸NAD+(1.5 mmol),溶于5.0~20.0 mL去离子水中,接着依次加入甲酸或甲酸钠或甲酸铵或甲酸钾或甲酸钙或甲酸锌(15 mmol)、 所述铱络合物(1.5~150 μmol),接着将混合液在0~50摄氏度反应1~20小时;
(2)反应结束后,向反应液中加入 5.0~20.0 mL 乙腈使产物沉淀出来,过滤后得到粗产品;
(3)将得到的粗产品重新溶解在 2.0~5.0 mL去离子水中,并进一步通过反相柱色谱进行分离、提纯(以含有0-30% 乙腈的0.05 M三乙基碳酸氢铵TEAB缓冲液作为洗脱剂) ,所收集的粗产品通过与甲醇共同减压蒸馏除去残留的 TEAB,进一步将所获得的产物溶解在超纯水中,冻干后得到纯的目标NADH,产率60~85%。
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