CN106608874A - 2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉酮及其制备方法与应用 - Google Patents
2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉酮及其制备方法与应用 Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 21
- 241000712461 unidentified influenza virus Species 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 8
- 239000001257 hydrogen Substances 0.000 claims abstract description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 7
- 229940123424 Neuraminidase inhibitor Drugs 0.000 claims abstract description 5
- 239000002911 sialidase inhibitor Substances 0.000 claims abstract description 5
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 claims description 27
- MOFINMJRLYEONQ-UHFFFAOYSA-N [N].C=1C=CNC=1 Chemical class [N].C=1C=CNC=1 MOFINMJRLYEONQ-UHFFFAOYSA-N 0.000 claims description 25
- 150000001875 compounds Chemical class 0.000 claims description 8
- 125000002941 2-furyl group Chemical group O1C([*])=C([H])C([H])=C1[H] 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- DWNBOPVKNPVNQG-LURJTMIESA-N (2s)-4-hydroxy-2-(propylamino)butanoic acid Chemical compound CCCN[C@H](C(O)=O)CCO DWNBOPVKNPVNQG-LURJTMIESA-N 0.000 claims description 3
- 125000003682 3-furyl group Chemical group O1C([H])=C([*])C([H])=C1[H] 0.000 claims description 3
- 210000005036 nerve Anatomy 0.000 claims description 3
- 239000002532 enzyme inhibitor Substances 0.000 claims 2
- 229940125532 enzyme inhibitor Drugs 0.000 claims 2
- 125000002541 furyl group Chemical group 0.000 claims 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 20
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 18
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 15
- 125000000437 thiazol-2-yl group Chemical group [H]C1=C([H])N=C(*)S1 0.000 description 15
- 125000001841 imino group Chemical group [H]N=* 0.000 description 14
- 230000000694 effects Effects 0.000 description 12
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 10
- 235000019441 ethanol Nutrition 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical compound [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 8
- 102000005348 Neuraminidase Human genes 0.000 description 8
- 108010006232 Neuraminidase Proteins 0.000 description 8
- 238000005160 1H NMR spectroscopy Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 7
- 238000001953 recrystallisation Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical class [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 6
- 206010022000 influenza Diseases 0.000 description 6
- 235000011091 sodium acetates Nutrition 0.000 description 6
- -1 thiazoline ketone compounds Chemical class 0.000 description 6
- 102000004190 Enzymes Human genes 0.000 description 4
- 108090000790 Enzymes Proteins 0.000 description 4
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- 125000004093 cyano group Chemical group *C#N 0.000 description 4
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 description 3
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- 238000006243 chemical reaction Methods 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
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- 239000011780 sodium chloride Substances 0.000 description 3
- 235000002639 sodium chloride Nutrition 0.000 description 3
- 125000003626 1,2,4-triazol-1-yl group Chemical group [*]N1N=C([H])N=C1[H] 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N 1H-pyrrole Natural products C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- GOUHYARYYWKXHS-UHFFFAOYSA-N 4-formylbenzoic acid Chemical compound OC(=O)C1=CC=C(C=O)C=C1 GOUHYARYYWKXHS-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
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- CBDKQYKMCICBOF-UHFFFAOYSA-N thiazoline Chemical compound C1CN=CS1 CBDKQYKMCICBOF-UHFFFAOYSA-N 0.000 description 2
- 150000003852 triazoles Chemical group 0.000 description 2
- RAIPHJJURHTUIC-UHFFFAOYSA-N 1,3-thiazol-2-amine Chemical compound NC1=NC=CS1 RAIPHJJURHTUIC-UHFFFAOYSA-N 0.000 description 1
- DYNFCHNNOHNJFG-UHFFFAOYSA-N 2-formylbenzoic acid Chemical class OC(=O)C1=CC=CC=C1C=O DYNFCHNNOHNJFG-UHFFFAOYSA-N 0.000 description 1
- DLBNXKRGSPXLKW-UHFFFAOYSA-N 2-phenyl-N-[5-(1,2,4-triazol-1-yl)-1,3-thiazol-2-yl]acetamide Chemical class N1(N=CN=C1)C1=CN=C(S1)NC(CC1=CC=CC=C1)=O DLBNXKRGSPXLKW-UHFFFAOYSA-N 0.000 description 1
- WKGHUAZJNBXABN-UHFFFAOYSA-N 3-bromo-2-chloro-6-methyl-5-nitropyridine Chemical compound CC1=NC(Cl)=C(Br)C=C1[N+]([O-])=O WKGHUAZJNBXABN-UHFFFAOYSA-N 0.000 description 1
- LFYNQKVDOZKQHK-VASBCOJBSA-N C[C@H](C1)C(/C=C(\C(N2)O)/SC2=N)=CC#CC1C(F)(F)F Chemical compound C[C@H](C1)C(/C=C(\C(N2)O)/SC2=N)=CC#CC1C(F)(F)F LFYNQKVDOZKQHK-VASBCOJBSA-N 0.000 description 1
- PMMYEEVYMWASQN-DMTCNVIQSA-N Hydroxyproline Chemical class O[C@H]1CN[C@H](C(O)=O)C1 PMMYEEVYMWASQN-DMTCNVIQSA-N 0.000 description 1
- 229940124639 Selective inhibitor Drugs 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
- 208000036142 Viral infection Diseases 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000006911 enzymatic reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
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- 230000005764 inhibitory process Effects 0.000 description 1
- BQINXKOTJQCISL-GRCPKETISA-N keto-neuraminic acid Chemical compound OC(=O)C(=O)C[C@H](O)[C@@H](N)[C@@H](O)[C@H](O)[C@H](O)CO BQINXKOTJQCISL-GRCPKETISA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- FEIOASZZURHTHB-UHFFFAOYSA-N methyl 4-formylbenzoate Chemical compound COC(=O)C1=CC=C(C=O)C=C1 FEIOASZZURHTHB-UHFFFAOYSA-N 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- UPSFMJHZUCSEHU-JYGUBCOQSA-N n-[(2s,3r,4r,5s,6r)-2-[(2r,3s,4r,5r,6s)-5-acetamido-4-hydroxy-2-(hydroxymethyl)-6-(4-methyl-2-oxochromen-7-yl)oxyoxan-3-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide Chemical compound CC(=O)N[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@H]1[C@H](O)[C@@H](NC(C)=O)[C@H](OC=2C=C3OC(=O)C=C(C)C3=CC=2)O[C@@H]1CO UPSFMJHZUCSEHU-JYGUBCOQSA-N 0.000 description 1
- CERZMXAJYMMUDR-UHFFFAOYSA-N neuraminic acid Natural products NC1C(O)CC(O)(C(O)=O)OC1C(O)C(O)CO CERZMXAJYMMUDR-UHFFFAOYSA-N 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- VSZGPKBBMSAYNT-RRFJBIMHSA-N oseltamivir Chemical class CCOC(=O)C1=C[C@@H](OC(CC)CC)[C@H](NC(C)=O)[C@@H](N)C1 VSZGPKBBMSAYNT-RRFJBIMHSA-N 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- ZNNZYHKDIALBAK-UHFFFAOYSA-M potassium thiocyanate Chemical compound [K+].[S-]C#N ZNNZYHKDIALBAK-UHFFFAOYSA-M 0.000 description 1
- 229940116357 potassium thiocyanate Drugs 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- LISFMEBWQUVKPJ-UHFFFAOYSA-N quinolin-2-ol Chemical compound C1=CC=C2NC(=O)C=CC2=C1 LISFMEBWQUVKPJ-UHFFFAOYSA-N 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011535 reaction buffer Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- IRFHMTUHTBSEBK-QGZVFWFLSA-N tert-butyl n-[(2s)-2-(2,5-difluorophenyl)-3-quinolin-3-ylpropyl]carbamate Chemical compound C1([C@H](CC=2C=C3C=CC=CC3=NC=2)CNC(=O)OC(C)(C)C)=CC(F)=CC=C1F IRFHMTUHTBSEBK-QGZVFWFLSA-N 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 230000009385 viral infection Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
- C07D417/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing three or more hetero rings
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- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
本发明涉及化学结构式Ⅰ、Ⅱ、Ⅲ所示的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮:其中,X、Y和Z选自:CH或N;R:C1~C2烷基、C3~C6直链或C3~C6支链烷基;W选自:2-CN、3-CN、4-CN、2-CO2R1、3-CO2R1或4-CO2R1;R1选自:氢、C1~C2烷基、C3~C6直链或C3~C6支链烷基。2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮在制备流感病毒神经氨酸酶抑制剂中的应用。
Description
技术领域
本发明涉及一类新化合物的制备与应用,具体是2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮的制备及其在作为流感病毒神经氨酸酶抑制剂的应用。
背景技术
2010年,Mohan等设计并合成了一类含有三氮唑结构的Oseltamivir类似物,体外酶抑制剂活性测试筛选出一个对NAs(Nl)具有较高活性和选择性的抑制剂A[Mohan S.et al,J.Med.Chem.2010,53(20):7377-7391]。谢元超以L-羟脯氨酸的吡咯烷为基本母核,设计合成出一类含有三氮唑的化合物B显示有较好的NA抑制活性[谢元超,山东大学,2014]。
噻唑类和噻唑啉酮类化合物具有抗流感病毒活性:中国发明专利[ZL 200810152537.4,2010.12.22授权,ZL 201010223400.0,2012.07.25授权]描述了系列具有抗流感病毒活性的噻唑衍生物和取代噻唑巯乙酰胺类衍生物;中国发明专利[CN 103830233 A,2014.06.04公开,CN 103705511 A,2014.04.09公开]描述了5-(1,2,4-三唑-1-基)-2-苯乙酰氨基噻唑和N-[5-(1,2,4-三唑-1-基)噻唑-2-基]脂肪酰胺的抗流感活性;中国发明专利[CN 103755697 A,2014.04.30公开,CN 103739599 A,2014.04.23公开]描述了3-[[2-(2-苄亚氨基)噻唑-5-基]甲基]喹啉-2(1H)-酮和3-[[2-(2-苄亚肼基)噻唑-5-基]甲基]喹啉-2(1H)-酮的制备与抗流感活性;此外,中国专利[CN 103648282 A,2014.03.19公开,CN101990534 A,2008.10.3公开]还描述了噻唑类化合物在预防和治疗病毒感染方面的用途。
发明内容
本发明的目的在于提供化学结构式Ⅰ所示的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮:
其中,X、Y和Z选自:CH或N;R:C1~C2烷基、C3~C6直链或C3~C6支链烷基;W选自:2-CN、3-CN、4-CN、2-CO2R1、3-CO2R1或4-CO2R1;R1选自:氢、C1~C2烷基、C3~C6直链或C3~C6支链烷基。
本发明的目的在于提供化学结构式Ⅱ所示的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮:
其中,X、Y和Z选自:CH或N;R:C1~C2烷基、C3~C6直链或C3~C6支链烷基;吡啶基R1C5H3N选自:3-R1-2-C5H3N、4-R1-2-C5H3N、5-R1-2-C5H3N、6-R1-2-C5H3N、2-R1-3-C5H3N、4-R1-3-C5H3N、5-R1-3-C5H3N、6-R1-3-C5H3N、2-R1-4-C5H3N、3-R1-4-C5H3N;R1选自:氢、C1~C2烷基、C3~C6直链或C3~C6支链烷基。
本发明的目的在于提供化学结构式Ⅲ所示的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮:
其中,X、Y和Z选自:CH或N;R:C1~C2烷基、C3~C6直链或C3~C6支链烷基;呋喃基选自:2-呋喃基或3-呋喃基。
本发明的目的在于提供的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮的制备方法,其特征在于它的制备反应如下:
其中,X、Y和Z选自:CH或N;R:C1~C2烷基、C3~C6直链或C3~C6支链烷基;W选自:2-CN、3-CN、4-CN、2-CO2R1、3-CO2R1或4-CO2R1;R1选自:氢、C1~C2烷基、C3~C6直链或C3~C6支链烷基。
本发明的目的在于提供的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮的制备方法,其特征在于它的制备反应如下:
其中,X、Y和Z选自:CH或N;R:C1~C2烷基、C3~C6直链或C3~C6支链烷基;吡啶基R1C5H3N选自:3-R1-2-C5H3N、4-R1-2-C5H3N、5-R1-2-C5H3N、6-R1-2-C5H3N、2-R1-3-C5H3N、4-R1-3-C5H3N、5-R1-3-C5H3N、6-R1-3-C5H3N、2-R1-4-C5H3N、3-R1-4-C5H3N;R1选自:氢、C1~C2烷基、C3~C6直链或C3~C6支链烷基。
本发明的目的在于提供的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮的制备方法,其特征在于它的制备反应如下:
其中,X、Y和Z选自:CH或N;R:C1~C2烷基、C3~C6直链或C3~C6支链烷基;呋喃基选自:2-呋喃基或3-呋喃基。
本发明的目的在于提供的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮优选下列化合物:
本发明的目的在于提供的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮具有流感病毒神经氨酸酶抑制活性,在制备流感病毒神经氨酸酶抑制剂中的应用。
本发明与现有技术相比具有如下优点:
发明了2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮具有流感病毒神经氨酸酶抑制活性。
具体实施方式
以下实施例旨在说明本发明而不是对本发明的进一步限定。
实施例1
2-{[4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-基]亚氨基}噻唑啉-4-酮(2)的制备
11.25g(50mmol)4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-胺,100mL二氯甲烷,搅拌溶解,加入6.90g(50mmol)无水碳酸钾,常温搅拌30min,滴加4.0mL(50mmol)氯乙酰氯,常温反应2.5h。反应液倒入冰水,二氯甲烷萃取,饱和碳酸钠水溶液洗涤,合并有机相,无水硫酸钠干燥,脱溶,乙醇重结晶得13.50g白色固体1,收率93%,m.p.130~133℃。
10.25g(34mmol)化合物1,4.95g(34mmol)硫氰酸钾,100mL乙醇溶解,回流5.0h。冷却,析出固体,抽滤,乙醇洗,水洗,干燥得9.50g淡黄色固体2-{[4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-基]亚氨基}噻唑啉-4-酮,收率86%,m.p.182~185℃。1H NMR(CDCl3,400MHz)δ:1.19(s,9H,3×CH3),3.90(s,2H,CH2),8.11(s,1H,C2H2N33-H),8.28(s,1H,C2H2N35-H),12.01(s,1H,NH)。
实施例2
2-{[4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-基]亚氨基}-5-(2-羧基亚苄基)-4-噻唑啉酮的制备
4.0mmol 2-{[4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-基]亚氨基}噻唑啉-4-酮、8.0mmol2-甲酰基苯甲酸和16.0mmol无水乙酸钠,加入30mL乙酸搅拌溶解,回流10h。倒入饱和食盐水中,冰箱中静置过夜,抽滤,水洗,乙醇重结晶得黄色固体1.43g,收率79%,m.p.258~260℃。1H NMR(DMSO-d6,400MHz)δ:1.10(s,9H,3×CH3),7.57~7.61(m,1H,C6H44-H),7.71~7.72(m,2H,C6H45,6-H),8.02(d,J=7.6Hz,1H,C6H43-H),8.29(s,1H,C2H2N33-H),8.34(s,1H,=CH),9.01(s,1H,C2H2N35-H),12.88(s,1H,NH),13.39(s,1H,CO2H)。
实施例3
2-{[4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-基]亚氨基}-5-(4-羧基亚苄基)噻唑啉-4-酮的制备
4.0mmol 2-{[4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-基]亚氨基}噻唑啉-4-酮、8.0mmol对甲酰基苯甲酸和16.0mmol无水乙酸钠,加入30mL乙酸搅拌溶解,回流10h。倒入饱和食盐水中,冰箱中静置过夜,抽滤,水洗,乙醇重结晶得黄色固体1.49g,收率82%,m.p.>300℃。1H NMR(DMSO-d6,400MHz)δ:1.19(s,9H,3×CH3),7.78(d,J=8.0Hz,2H,C6H42,6-H),7.81(s,1H,=CH),8.05(d,J=8.0Hz,2H,C6H43,5-H),8.29(s,1H,C2H2N33-H),9.03(s,1H,C2H2N35-H),12.96(s,1H,NH),13.25(s,1H,CO2H)。
实施例4
2-{[4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-基]亚氨基}-5-(4-甲氧羰基亚苄基)噻唑啉-4-酮的制备
4.0mmol 2-{[4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-基]亚氨基}噻唑啉-4-酮、8.0mmol对甲酰基苯甲酸甲酯和16.0mmol无水乙酸钠,加入30mL乙酸搅拌溶解,回流10h。倒入饱和食盐水中,冰箱中静置过夜,抽滤,水洗,乙醇重结晶,干燥得黄色固体1.35g,收率72%,m.p.246~248℃。1H NMR(CDCl3,400MHz)δ:1.26(s,9H,3×CH3),3.96(s,3H,CO2CH3),7.66(d,J=7.2Hz,2H,C6H42,6-H),7.85(s,1H,=CH),8.14(s,1H,C2H2N33-H),8.16(d,J=7.2Hz,2H,C6H43,5-H),8.33(s,1H,C2H2N35-H),12.03(s,1H,NH)。
实施例5
2-{[4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-基]亚氨基}-5-(4-氰基亚苄基)-4-噻唑啉酮的制备
4.0mmol 2-{[4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-基]亚氨基}噻唑啉-4-酮、8.0mmol对甲酰基苯甲腈和16.0mmol无水乙酸钠,加入30mL乙酸搅拌溶解,回流10h。倒入饱和食盐水中,冰箱中静置过夜,抽滤,水洗,乙醇重结晶,干燥得黄色固体1.35g,收率75%,m.p.250~253℃。1H NMR(DMSO-d6,400MHz)δ:1.19(s,9H,3×CH3),7.76(d,J=8.0Hz,2H,C6H42,6-H),7.99(d,J=8.0Hz,2H,C6H43,5-H),8.08(s,1H,=CH),8.29(s,1H,C2H2N33-H),9.03(s,1H,C2H2N35-H),13.00(s,1H,NH)。
实施例6
2-{[4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-基]亚氨基}-5-(6-甲基吡啶-3-亚甲基)噻唑啉-4-酮的制备
2.0mmol2-{[4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-基]亚氨基}噻唑啉-4-酮、4.0mmol 6-甲基-3-吡啶醛和8.0mmol无水乙酸钠,加入30mL乙酸搅拌溶解,回流10h。倒入饱和食盐水中,冰箱中静置过夜,抽滤,水洗,乙醇重结晶,干燥得黄色固体0.28g,收率33%,m.p.217~220℃。1H NMR(400MHz,CDCl3)δ:1.25(s,9H,3×CH3),2.65(s,3H,CH3),7.32(d,J=7.9Hz,1H,C5H3N 5-H),7.88~7.70(m,2H,=CH,C5H3N 6-H),8.13(s,1H,C2N3H23-H),8.30(s,1H,C2N3H25-H),8.78~8.73(m,1H,C5H3N 2-H),12.04(s,1H,NH)。
实施例7
2-{[4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-基]亚氨基}-5-(呋喃-2-亚甲基)噻唑啉-4-酮的制备
4.0mmol2-{[4-叔丁基-5-(1H-1,2,4-三唑-1-基)噻唑-2-基]亚氨基}噻唑啉-4-酮、8.0mmol糠醛和16.0mmol无水乙酸钠溶于30mL乙酸中,回流10h,倒入饱和食盐水中,冰箱中静置过夜,抽滤,水洗,乙醇重结晶,干燥得棕色固体1.12g,收率70%,m.p.237~239℃。1H NMR(400MHz,DMSO-d6)δ:1.19(s,9H,3×CH3),6.77~6.78(m,1H,C4H3O 3-H),7.10(d,J=3.2Hz,1H,C4H3O 4-H),7.58(s,1H,=CH),8.04(s,1H,C4H3O 5-H),8.29(s,1H,C2N3H23-H),9.02(s,1H,C2N3H25-H),12.72(s,1H,NH)。
实施例8
2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮抗流感病毒神经氨酸酶活性
1.实验原理
化合物MUNANA是神经氨酸酶的特异性底物,在神经氨酸酶作用下产生的代谢产物在360nm照射激发下,可产生450nm荧光,荧光强度的变化可以灵敏地反映神经氨酸酶活性。酶均来自A/PR/8/34(H1N1)病毒毒株。
2.实验方法
在酶反应体系中,一定浓度样品与流感病毒神经氨酸酶NA悬浮于反应缓冲液中(pH6.5),加入荧光底物MUNANA启动反应体系,37℃孵育40分钟后,加反应终止液终止反应。在激发波长360nm和发射波长为450nm的参数条件下,测定荧光强度值。根据荧光强度的减少量可以计算化合物对NA活性的抑制率。
3.检测样品:2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮(Ⅰ、Ⅱ和Ⅲ)。
4.活性结果
优选化合物在反应系统中检测浓度40.0μg/mL时对神经氨酸酶的抑制率及其IC50值列入下表1:
表1 2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮对神经氨酸酶的抑制活性
2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮具有良好的抗流感病毒神经氨酸酶活性,可用于制备流感病毒神经氨酸酶抑制剂。
Claims (10)
1.化学结构式Ⅰ所示的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮:
其中,X、Y和Z选自:CH或N;R:C1~C2烷基、C3~C6直链或C3~C6支链烷基;W选自:2-CN、3-CN、4-CN、2-CO2R1、3-CO2R1或4-CO2R1;R1选自:氢、C1~C2烷基、C3~C6直链或C3~C6支链烷基。
2.化学结构式Ⅱ所示的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮:
其中,X、Y和Z选自:CH或N;R:C1~C2烷基、C3~C6直链或C3~C6支链烷基;吡啶基R1C5H3N选自:3-R1-2-C5H3N、4-R1-2-C5H3N、5-R1-2-C5H3N、6-R1-2-C5H3N、2-R1-3-C5H3N、4-R1-3-C5H3N、5-R1-3-C5H3N、6-R1-3-C5H3N、2-R1-4-C5H3N、3-R1-4-C5H3N;R1选自:氢、C1~C2烷基、C3~C6直链或C3~C6支链烷基。
3.化学结构式Ⅲ所示的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮:
其中,X、Y和Z选自:CH或N;R:C1~C2烷基、C3~C6直链或C3~C6支链烷基;呋喃基选自:2-呋喃基或3-呋喃基。
4.权利要求1所述的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮的制备方法,其特征在于它的制备反应如下:
式中,R、X、Y、W如权利要求1所述;W中的R1如权利要求1所述。
5.权利要求2所述的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮的制备方法,其特征在于它的制备反应如下:
式中,R、R1、X、Y、Z如权利要求1所述。
6.权利要求3所述的2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮的制备方法,其特征在于它的制备反应如下:
式中,R、X、Y、Z如权利要求3所述。
7.2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮优选下列化合物:
8.权利要求1所述2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮在制备流感病毒神经氨酸酶抑制剂中的应用。
9.权利要求2或3所述2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮在制备流感病毒神经氨酸酶抑制剂中的应用。
10.权利要求7所述2-[5-(氮唑-1-基)噻唑-2-亚氨基]噻唑啉-4-酮在制备流感病毒神经氨酸酶抑制剂中的应用。
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