CN117285575A - 一种糖缀合物的制备方法 - Google Patents
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- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 150000001875 compounds Chemical class 0.000 claims abstract description 35
- LFKDJXLFVYVEFG-UHFFFAOYSA-N tert-butyl carbamate Chemical compound CC(C)(C)OC(N)=O LFKDJXLFVYVEFG-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- 150000001720 carbohydrates Chemical class 0.000 claims abstract description 7
- 239000003054 catalyst Substances 0.000 claims abstract description 7
- 150000007529 inorganic bases Chemical class 0.000 claims abstract description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 78
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 78
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 48
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 44
- 239000002904 solvent Substances 0.000 claims description 33
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 28
- 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 claims description 28
- 239000008103 glucose Substances 0.000 claims description 28
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 24
- 239000000706 filtrate Substances 0.000 claims description 24
- 239000012046 mixed solvent Substances 0.000 claims description 24
- 239000012074 organic phase Substances 0.000 claims description 24
- 239000003208 petroleum Substances 0.000 claims description 24
- 238000010898 silica gel chromatography Methods 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 22
- 238000005406 washing Methods 0.000 claims description 22
- 239000002808 molecular sieve Substances 0.000 claims description 20
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 20
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 20
- 238000000605 extraction Methods 0.000 claims description 19
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 claims description 16
- -1 aryl furan Chemical compound 0.000 claims description 16
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 15
- LZWQNOHZMQIFBX-UHFFFAOYSA-N lithium;2-methylpropan-2-olate Chemical compound [Li+].CC(C)(C)[O-] LZWQNOHZMQIFBX-UHFFFAOYSA-N 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- FCEHBMOGCRZNNI-UHFFFAOYSA-N 1-benzothiophene Chemical compound C1=CC=C2SC=CC2=C1 FCEHBMOGCRZNNI-UHFFFAOYSA-N 0.000 claims description 12
- 239000000047 product Substances 0.000 claims description 12
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 10
- 229930192474 thiophene Natural products 0.000 claims description 8
- 150000001719 carbohydrate derivatives Chemical class 0.000 claims description 7
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 6
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 6
- 229910052794 bromium Inorganic materials 0.000 claims description 6
- 229910052801 chlorine Inorganic materials 0.000 claims description 6
- 239000000460 chlorine Substances 0.000 claims description 6
- 229910052731 fluorine Inorganic materials 0.000 claims description 6
- 239000011737 fluorine Substances 0.000 claims description 6
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 6
- 125000001424 substituent group Chemical group 0.000 claims description 6
- 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 claims description 5
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 4
- LYQFWZFBNBDLEO-UHFFFAOYSA-M caesium bromide Chemical compound [Br-].[Cs+] LYQFWZFBNBDLEO-UHFFFAOYSA-M 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- UUKWKUSGGZNXGA-UHFFFAOYSA-N 3,5-dinitrobenzamide Chemical compound NC(=O)C1=CC([N+]([O-])=O)=CC([N+]([O-])=O)=C1 UUKWKUSGGZNXGA-UHFFFAOYSA-N 0.000 claims description 3
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 claims description 3
- 229910000024 caesium carbonate Inorganic materials 0.000 claims description 3
- ZIPLUEXSCPLCEI-UHFFFAOYSA-N iminomethylideneazanide Chemical compound [NH-]C#N ZIPLUEXSCPLCEI-UHFFFAOYSA-N 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 125000004185 ester group Chemical group 0.000 claims description 2
- 150000002303 glucose derivatives Chemical class 0.000 claims description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 2
- 238000010534 nucleophilic substitution reaction Methods 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims 4
- 238000003756 stirring Methods 0.000 claims 4
- 238000002156 mixing Methods 0.000 claims 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 150000001408 amides Chemical class 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 239000007810 chemical reaction solvent Substances 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 229910000510 noble metal Inorganic materials 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000010523 cascade reaction Methods 0.000 abstract 1
- 238000001460 carbon-13 nuclear magnetic resonance spectrum Methods 0.000 description 5
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 5
- 239000003814 drug Substances 0.000 description 2
- 239000012039 electrophile Substances 0.000 description 2
- MGJXBDMLVWIYOQ-UHFFFAOYSA-N methylazanide Chemical compound [NH-]C MGJXBDMLVWIYOQ-UHFFFAOYSA-N 0.000 description 2
- 229930014626 natural product Natural products 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
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- 230000036436 anti-hiv Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000032677 cell aging Effects 0.000 description 1
- 230000024245 cell differentiation Effects 0.000 description 1
- 230000032823 cell division Effects 0.000 description 1
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- 229940079593 drug Drugs 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
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- 244000005700 microbiome Species 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H9/00—Compounds containing a hetero ring sharing at least two hetero atoms with a saccharide radical
- C07H9/02—Compounds containing a hetero ring sharing at least two hetero atoms with a saccharide radical the hetero ring containing only oxygen as ring hetero atoms
- C07H9/04—Cyclic acetals
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
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Abstract
本发明涉及一种糖缀合物的制备方法,本发明从廉价易得的N‑Boc酰胺出发,在常温常压及空气的条件下,以无机碱代替贵金属催化剂,与糖类分子间发生串联反应,通过简单、高效的反应获得了仲糖化合物,在生物、医药领域具有应用价值;本发明通过筛选优化相应的无机碱以及反应溶剂,在该反应体系使得惰性的酰胺底物有效地发生反应,克服了酰胺底物反应活性低等缺陷;本发明中所使用的原料糖底物和酰胺可大量制备,无机催化剂价廉价易得,反应条件温和,反应产率高,并且产物糖类衍生物在空气中稳定且易分离,具有广泛的市场应用前景。
Description
技术领域
本发明涉及化合物的有机合成技术领域,具体指一种糖缀合物的制备方法。
背景技术
糖类是一种丰富的天然化合物,广泛分布在植物、动物和微生物中,具有特殊的性质和维持生命的重要作用。糖类也是一种生物调节剂,能控制细胞的分裂与分化,调节细胞的生长与衰老,增强机体的免疫功能。多糖类化合物由于其天然性以及资源丰富,作为肿瘤、抗HIV药物有着良好的应用前景。同时,糖类在医疗、化妆品和制药方面所发挥的重要作用和良好的应用前景。但面临的挑战是糖类衍生物的制备环节单一,毒副作用大以及价格昂贵等多种不利因素,因此,需要开发工艺简便,环保低毒,价格低廉的糖类衍生物是目前亟待解决的问题之一。
酰胺是最常见的结构,广泛存在于有机分子、天然产物、农用化学品。此外,酰胺是一种重要的有机化合物合成的中间体。然而,由于共振酰胺键的稳定性很好,导致酰胺在作为亲电试剂使用时活性较低,难以满足反应要求;同时,酰胺作为亲电试剂对空气和湿气敏感,使得酰胺化合物不稳定;此外,通常酰胺底物反应的官能团比较弱,使其反应活性较低。
因此,对于目前的糖类衍生物及其制备,均有待于做进一步改进。
发明内容
本发明所要解决的技术问题是针对现有技术的现状,提供一种能从廉价易得的N-Boc酰胺出发通过简便、高效反应获得仲糖化合物的糖缀合物的制备方法。
本发明解决上述技术问题所采用的技术方案为:
一种糖缀合物的制备方法,所述的糖缀合物为:
式IV中,R3选自下述基团中的任意一种:带呋喃、噻吩、苯并噻吩、氰基及取代基为氟、氯、溴、甲氧基任意一种的葡萄糖衍生物;R2选自下述基团中的任意一种:芳基呋喃、芳香噻吩、氰基、多氟取代的烷基;
从N-Boc酰胺出发,在常温常压及空气条件下,以无机碱代替贵金属催化剂,与糖类分子间发生串联反应,得到所述的糖缀合物,
式I中,R1选自下述基团中的任意一种:呋喃、噻吩、苯并噻吩、氰基以及取代基为氟、氯、溴、甲氧基、酯基、氰基或硝基中的任意一种或一种以上芳烃;
式II中,R2选自下述基团中的任意一种:葡萄糖以及糖类衍生物;
式III中,R1选自下述基团中的任意一种:呋喃、噻吩、苯并噻吩、氰基以及取代基为氟、氯、溴、甲氧基任意一种或一种以上芳烃;R2选自下述基团中的任意一种:葡萄糖以及糖类衍生物。
在本发明中,所述的无机碱选自下述化合物中的任意一种或其任意比例的混合物:Li2CO3、Na2CO3、K2CO3、Cs2CO3、LiOtBu、NaOtBu、KOtBu、CsF、CsBr、CsOAc、Et3N;所述的溶剂选自下述化合物中的任意一种溶剂:二氯甲烷、甲苯、四氢呋喃、乙酸乙酯、1,4-二氧六环、乙腈、二甲基亚砜,N,N-二甲基甲酰胺;所述无机碱催化剂的用量为式II化合物摩尔用量的5%-100%;所述亲核取代反应的温度为0-100℃,反应时间为5-24小时。
优选地,所述糖缀合物的结构式为:
其相应参数为:
1H NMR(600MHz,CDCl3):δ8.04–8.01(m,4H),7.61–7.54(m,2H),7.46–7.41(m,4H),6.07(d,J=3.7Hz,1H),5.60(d,J=3.0Hz,1H),4.78–4.75(m,1H),4.71(d,J=3.7Hz,1H),4.65–4.59(m,2H),1.58(s,3H),1.35(s,3H);
13C NMR(150MHz,CDCl3):δ166.3,165.4,133.8,133.3,129.9,129.7,129.1,128.7,128.5,112.6,105.2,83.6,77.2,76.9,62.1,26.9,26.4;
HRMS(ESI):Calcd for C22H22O7[M+H]+:399.1438,found:399.1425;
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,N-Boc酰胺(93.3mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),叔丁醇锂(4.8mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)反应后经二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIa;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:5)淋洗,分离得式IVa结构式所示化合物94.3mg,产率79%,即为目标产物,
优选地,所述糖缀合物的结构式为:
其相应参数为:
1H NMR(600MHz,CDCl3):δ8.04(d,J=8.2Hz,2H),7.95–7.92(m,2H),7.68–7.64(m,2H),7.55–7.48(m,1H),7.40–7.34(m,2H),6.01–6.00(m,1H),5.54–5.53(m,1H),4.70–4.67(m,1H),4.65–4.63(m,1H),4.60–4.52(m,2H),1.51(s,3H),1.28(s,3H);
13C NMR(150MHz,CDCl3):δ166.2,165.3,164.7,163.9,133.8,133.4(q),132.9–132.3(m),130.4(q),129.9(q),129.5–128.5(m),118.1–116.7(m),112.7,105.1,83.6,76.8,62.8,61.7,26.9,26.3;
HRMS(ESI):Calcd for C23H21NO7[M+H]+:424.1391,found:424.1396;
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带氰基酰胺(201.6mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),叔丁醇锂(4.8mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIb;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:5)淋洗,分离得式IVb结构式所示化合物74.8mg,产率59%,
优选地,所述糖缀合物的结构式为:
其相应参数为:
1H NMR(600MHz,CDCl3):δ8.22–8.18(m,2H),8.11(d,J=8.7Hz,2H),7.95–7.92(m,2H),7.55–7.48(m,1H),7.40–7.34(m,2H),6.01(d,J=3.7Hz,1H),5.55(d,J=3.0Hz,1H),4.71–4.69(m,1H),4.65(t,J=3.1Hz,1H),4.62–4.54(m,2H),1.52(s,3H),1.29(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–163.6(m),150.8(q),135.0,134.4,134.0,133.5,131.1(q),129.9(q),129.5–128.6(m),123.9,123.7,112.8(q),105.2(q),83.6(q),63.0,61.6,26.9,26.3;
HRMS(ESI):Calcd for C22H21NO9[M+H]+:444.1289,found:444.1290;
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带硝基酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),叔丁醇锂(4.8mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIc;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVc结构式所示化合物107.6mg,产率81%,
优选地,所述糖缀合物的结构式为:
其相应参数为:
1H NMR(600MHz,CDCl3):δ7.96–7.82(m,4H),7.53–7.33(m,2H),7.19–7.13(m,2H),5.60–5.98(m,1H),5.53–5.49(m,1H),4.70–4.66(m,1H),4.64–4.61(m,1H),4.58–4.48(m,2H),2.33(d,J=9.7Hz,4H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ165.3,164.4,143.7,143.0,132.8,132.3,128.95,128.91,128.4–127.5(m),125.9,125.4,111.5,104.2,83.1,75.7,61.0,25.9,25.4,20.9;
HRMS(ESI):Calcd for C23H24O7[M+H]+:413.1595,found:413.1623;
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带甲基酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),叔丁醇锂(4.8mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIId;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVd结构式所示化合物99.8mg,产率75%,
优选地,所述糖缀合物的结构式为:
其相应参数为:
1H NMR(600MHz,CDCl3):δ7.95(d,J=7.3Hz,2H),7.54–7.51(m,1H),7.50–7.47(m,1H),7.40–7.34(m,2H),7.50–7.47(m,1H),7.15–7.12(m,1H),6.46–6.41(m,1H),5.99–5.98(m,1H),5.49(d,J=3.0Hz,1H),4.68–4.62(m,2H),4.56–4.47(m,2H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–165.4(q),158.3–157.4(q),147.3–146.8(q),144.1–143.6(q),133.8–133.3(q),129.9,129.7–129.1(q),128.7–128.5(q),119.3,118.4,112.6,112.2,112.0,105.6,84.6,60.7,26.9,26.4;
HRMS(ESI):Calcd for C20H20O8[M+H]+:389.1231,found:389.1237;
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带呋喃酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),叔丁醇锂(4.8mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIe;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVe结构式所示化合物91.9mg,产率79%,
优选地,所述糖缀合物的结构式为:
其相应参数为:
1H NMR(600MHz,CDCl3):δ7.95(d,J=7.3Hz,2H),7.54–7.51(m,1H),7.50–7.47(m,1H),7.40–7.34(m,2H),7.50–7.47(m,1H),7.15–7.12(m,1H),6.46–6.41(m,1H),5.99–5.98(m,1H),5.49(d,J=3.0Hz,1H),4.68–4.62(m,2H),4.56–4.47(m,2H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–165.4(q),158.3–157.4(q),147.3–146.8(q),144.1–143.6(q),133.8–133.3(q),129.9,129.7–129.1(q),128.7–128.5(q),119.3,118.4,112.6,112.2,112.0,105.6,84.6,60.7,26.9,26.4;
HRMS(ESI):Calcd for C20H20O8[M+H]+:389.1231,found:389.1237;
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带呋喃酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),碳酸钠(6.4mg,0.06mmol),再加入分子筛干燥的乙腈1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIe;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVe结构式所示化合物80.3mg,产率69%,
优选地,所述糖缀合物的结构式为:
其相应参数为:
1H NMR(600MHz,CDCl3):δ7.95(d,J=7.3Hz,2H),7.54–7.51(m,1H),7.50–7.47(m,1H),7.40–7.34(m,2H),7.50–7.47(m,1H),7.15–7.12(m,1H),6.46–6.41(m,1H),5.99–5.98(m,1H),5.49(d,J=3.0Hz,1H),4.68–4.62(m,2H),4.56–4.47(m,2H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–165.4(q),158.3–157.4(q),147.3–146.8(q),144.1–143.6(q),133.8–133.3(q),129.9,129.7–129.1(q),128.7–128.5(q),119.3,118.4,112.6,112.2,112.0,105.6,84.6,60.7,26.9,26.4;
HRMS(ESI):Calcd for C20H20O8[M+H]+:389.1231,found:389.1237;
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带呋喃酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),CsF(9.1mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIe;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVe结构式所示化合物98.9mg,产率85%,
优选地,所述糖缀合物的结构式为:
其相应参数为:
1H NMR(600MHz,CDCl3):δ7.95(d,J=7.3Hz,2H),7.54–7.51(m,1H),7.50–7.47(m,1H),7.40–7.34(m,2H),7.50–7.47(m,1H),7.15–7.12(m,1H),6.46–6.41(m,1H),5.99–5.98(m,1H),5.49(d,J=3.0Hz,1H),4.68–4.62(m,2H),4.56–4.47(m,2H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–165.4(q),158.3–157.4(q),147.3–146.8(q),144.1–143.6(q),133.8–133.3(q),129.9,129.7–129.1(q),128.7–128.5(q),119.3,118.4,112.6,112.2,112.0,105.6,84.6,60.7,26.9,26.4;
HRMS(ESI):Calcd for C20H20O8[M+H]+:389.1231,found:389.1237;
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带呋喃酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),碳酸铯(19.8mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIe;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVe结构式所示化合物64.0mg,产率55%,
与现有技术相比,本发明的优点在于:
(1)本发明从廉价易得的N-Boc酰胺出发,在常温常压及空气的条件下,与糖类分子间发生串联反应,通过简单、高效的反应获得了稳定性良好的仲糖化合物,在生物、医药领域具有应用价值;
(2)本发明通过筛选优化相应的无机碱以及反应溶剂,在该反应体系使得惰性的酰胺底物有效地发生反应,克服了酰胺底物反应活性低等缺陷;
(3)本发明中所使用的原料糖底物和酰胺可大量制备,无机催化剂价廉价易得,反应条件温和,反应产率高,并且产物糖类衍生物在空气中稳定且易分离,具有广泛的市场应用前景。
附图说明
图1为本发明实施例1所得糖缀合物的1H NMR图谱;
图2为本发明实施例1所得糖缀合物的13C NMR图谱;
图3为本发明实施例2所得糖缀合物的1H NMR图谱;
图4为本发明实施例2所得糖缀合物的13C NMR图谱;
图5为本发明实施例3所得糖缀合物的1H NMR图谱;
图6为本发明实施例3所得糖缀合物的13C NMR图谱;
图7为本发明实施例4所得糖缀合物的1H NMR图谱;
图8为本发明实施例4所得糖缀合物的13C NMR图谱;
图9为本发明实施例5所得糖缀合物的1H NMR图谱;
图10为本发明实施例5所得糖缀合物的13C NMR图谱。
具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
实施例1:
本实施例糖缀合物的结构式为:
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子(用于实现磁力搅拌),N-Boc酰胺(93.3mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),叔丁醇锂(4.8mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)反应后经二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIa;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(体积比1:5)淋洗,分离得式IVa结构式所示化合物94.3mg,产率79%,即为目标产物。
如图1-2,所得产物的相应参数为:
1H NMR(600MHz,CDCl3):δ8.04–8.01(m,4H),7.61–7.54(m,2H),7.46–7.41(m,4H),6.07(d,J=3.7Hz,1H),5.60(d,J=3.0Hz,1H),4.78–4.75(m,1H),4.71(d,J=3.7Hz,1H),4.65–4.59(m,2H),1.58(s,3H),1.35(s,3H);
13C NMR(150MHz,CDCl3):δ166.3,165.4,133.8,133.3,129.9,129.7,129.1,128.7,128.5,112.6,105.2,83.6,77.2,76.9,62.1,26.9,26.4;
HRMS(ESI):Calcd for C22H22O7[M+H]+:399.1438,found:399.1425。
实施例2:
本实施例的糖缀合物的结构式为:
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带氰基酰胺(201.6mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),叔丁醇锂(4.8mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIb;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:5)淋洗,分离得式IVb结构式所示化合物74.8mg,产率59%。
如图3-4,所得产物的相应参数为:
1H NMR(600MHz,CDCl3):δ8.04(d,J=8.2Hz,2H),7.95–7.92(m,2H),7.68–7.64(m,2H),7.55–7.48(m,1H),7.40–7.34(m,2H),6.01–6.00(m,1H),5.54–5.53(m,1H),4.70–4.67(m,1H),4.65–4.63(m,1H),4.60–4.52(m,2H),1.51(s,3H),1.28(s,3H);
13C NMR(150MHz,CDCl3):δ166.2,165.3,164.7,163.9,133.8,133.4(q),132.9–132.3(m),130.4(q),129.9(q),129.5–128.5(m),118.1–116.7(m),112.7,105.1,83.6,76.8,62.8,61.7,26.9,26.3;
HRMS(ESI):Calcd for C23H21NO7[M+H]+:424.1391,found:424.1396。
实施例3:
本实施例的糖缀合物的结构式为:
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带硝基酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),叔丁醇锂(4.8mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIc;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVc结构式所示化合物107.6mg,产率81%。
如图5-6,所得产物的相应参数为:
1H NMR(600MHz,CDCl3):δ8.22–8.18(m,2H),8.11(d,J=8.7Hz,2H),7.95–7.92(m,2H),7.55–7.48(m,1H),7.40–7.34(m,2H),6.01(d,J=3.7Hz,1H),5.55(d,J=3.0Hz,1H),4.71–4.69(m,1H),4.65(t,J=3.1Hz,1H),4.62–4.54(m,2H),1.52(s,3H),1.29(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–163.6(m),150.8(q),135.0,134.4,134.0,133.5,131.1(q),129.9(q),129.5–128.6(m),123.9,123.7,112.8(q),105.2(q),83.6(q),63.0,61.6,26.9,26.3;
HRMS(ESI):Calcd for C22H21NO9[M+H]+:444.1289,found:444.1290。
实施例4:
本实施例的糖缀合物的结构式为:
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带甲基酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),叔丁醇锂(4.8mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIId;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVd结构式所示化合物99.8mg,产率75%。
如图7-8,所得产物的相应参数为:
1H NMR(600MHz,CDCl3):δ7.96–7.82(m,4H),7.53–7.33(m,2H),7.19–7.13(m,2H),5.60–5.98(m,1H),5.53–5.49(m,1H),4.70–4.66(m,1H),4.64–4.61(m,1H),4.58–4.48(m,2H),2.33(d,J=9.7Hz,4H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ165.3,164.4,143.7,143.0,132.8,132.3,128.95,128.91,128.4–127.5(m),125.9,125.4,111.5,104.2,83.1,75.7,61.0,25.9,25.4,20.9;
HRMS(ESI):Calcd for C23H24O7[M+H]+:413.1595,found:413.1623。
实施例5:
本实施例的糖缀合物的结构式为:
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带呋喃酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),叔丁醇锂(4.8mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIe;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVe结构式所示化合物91.9mg,产率79%。
如图9-10,所得产物的相应参数为:
1H NMR(600MHz,CDCl3):δ7.95(d,J=7.3Hz,2H),7.54–7.51(m,1H),7.50–7.47(m,1H),7.40–7.34(m,2H),7.50–7.47(m,1H),7.15–7.12(m,1H),6.46–6.41(m,1H),5.99–5.98(m,1H),5.49(d,J=3.0Hz,1H),4.68–4.62(m,2H),4.56–4.47(m,2H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–165.4(q),158.3–157.4(q),147.3–146.8(q),144.1–143.6(q),133.8–133.3(q),129.9,129.7–129.1(q),128.7–128.5(q),119.3,118.4,112.6,112.2,112.0,105.6,84.6,60.7,26.9,26.4;
HRMS(ESI):Calcd for C20H20O8[M+H]+:389.1231,found:389.1237。
实施例6:
本实施例的糖缀合物的结构式为:
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带呋喃酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),碳酸钠(6.4mg,0.06mmol),再加入分子筛干燥的乙腈1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIe;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVe结构式所示化合物80.3mg,产率69%。
所得产物的相应参数为:
1H NMR(600MHz,CDCl3):δ7.95(d,J=7.3Hz,2H),7.54–7.51(m,1H),7.50–7.47(m,1H),7.40–7.34(m,2H),7.50–7.47(m,1H),7.15–7.12(m,1H),6.46–6.41(m,1H),5.99–5.98(m,1H),5.49(d,J=3.0Hz,1H),4.68–4.62(m,2H),4.56–4.47(m,2H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–165.4(q),158.3–157.4(q),147.3–146.8(q),144.1–143.6(q),133.8–133.3(q),129.9,129.7–129.1(q),128.7–128.5(q),119.3,118.4,112.6,112.2,112.0,105.6,84.6,60.7,26.9,26.4;
HRMS(ESI):Calcd for C20H20O8[M+H]+:389.1231,found:389.1237。
实施例7:
本实施例的糖缀合物的结构式为:
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带呋喃酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),CsF(9.1mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIe;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVe结构式所示化合物98.9mg,产率85%。
所得产物的相应参数为:
1H NMR(600MHz,CDCl3):δ7.95(d,J=7.3Hz,2H),7.54–7.51(m,1H),7.50–7.47(m,1H),7.40–7.34(m,2H),7.50–7.47(m,1H),7.15–7.12(m,1H),6.46–6.41(m,1H),5.99–5.98(m,1H),5.49(d,J=3.0Hz,1H),4.68–4.62(m,2H),4.56–4.47(m,2H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–165.4(q),158.3–157.4(q),147.3–146.8(q),144.1–143.6(q),133.8–133.3(q),129.9,129.7–129.1(q),128.7–128.5(q),119.3,118.4,112.6,112.2,112.0,105.6,84.6,60.7,26.9,26.4;
HRMS(ESI):Calcd for C20H20O8[M+H]+:389.1231,found:389.1237。
实施例8:
本实施例的糖缀合物的结构式为:
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带呋喃酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),碳酸铯(19.8mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIe;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVe结构式所示化合物64.0mg,产率55%。
所得产物的相应参数为:
1H NMR(600MHz,CDCl3):δ7.95(d,J=7.3Hz,2H),7.54–7.51(m,1H),7.50–7.47(m,1H),7.40–7.34(m,2H),7.50–7.47(m,1H),7.15–7.12(m,1H),6.46–6.41(m,1H),5.99–5.98(m,1H),5.49(d,J=3.0Hz,1H),4.68–4.62(m,2H),4.56–4.47(m,2H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–165.4(q),158.3–157.4(q),147.3–146.8(q),144.1–143.6(q),133.8–133.3(q),129.9,129.7–129.1(q),128.7–128.5(q),119.3,118.4,112.6,112.2,112.0,105.6,84.6,60.7,26.9,26.4;
HRMS(ESI):Calcd for C20H20O8[M+H]+:389.1231,found:389.1237。
Claims (10)
1.一种糖缀合物的制备方法,其特征在于:
所述的糖缀合物为:
式IV中,R3选自下述基团中的任意一种:带呋喃、噻吩、苯并噻吩、氰基及取代基为氟、氯、溴、甲氧基任意一种的葡萄糖衍生物;R2选自下述基团中的任意一种:芳基呋喃、芳香噻吩、氰基、多氟取代的烷基;
从N-Boc酰胺出发,在常温常压及空气条件下,以无机碱作为催化剂,与糖类分子间发生串联反应,得到所述的糖缀合物,
式I中,R1选自下述基团中的任意一种:呋喃、噻吩、苯并噻吩、氰基以及取代基为氟、氯、溴、甲氧基、酯基、氰基或硝基中的任意一种或一种以上芳烃;
式II中,R2选自下述基团中的任意一种:葡萄糖以及糖类衍生物;
式III中,R1选自下述基团中的任意一种:呋喃、噻吩、苯并噻吩、氰基以及取代基为氟、氯、溴、甲氧基任意一种或一种以上芳烃;R2选自下述基团中的任意一种:葡萄糖以及糖类衍生物。
2.根据权利要求1所述的糖缀合物的制备方法,其特征在于:
所述的无机碱选自下述化合物中的任意一种或其任意比例的混合物:Li2CO3、Na2CO3、K2CO3、Cs2CO3、LiOtBu、NaOtBu、KOtBu、CsF、CsBr、CsOAc、Et3N;
所述的溶剂选自下述化合物中的任意一种溶剂:二氯甲烷、甲苯、四氢呋喃、乙酸乙酯、1,4-二氧六环、乙腈、二甲基亚砜,N,N-二甲基甲酰胺;
所述无机碱催化剂的用量为式II化合物摩尔用量的5%-100%;
所述亲核取代反应的温度为0-100℃,反应时间为5-24小时。
3.根据权利要求2所述的糖缀合物的制备方法,其特征在于:所述糖缀合物的结构式为
其相应参数为:
1H NMR(600MHz,CDCl3):δ8.04–8.01(m,4H),7.61–7.54(m,2H),7.46–7.41(m,4H),6.07(d,J=3.7Hz,1H),5.60(d,J=3.0Hz,1H),4.78–4.75(m,1H),4.71(d,J=3.7Hz,1H),4.65–4.59(m,2H),1.58(s,3H),1.35(s,3H);
13C NMR(150MHz,CDCl3):δ166.3,165.4,133.8,133.3,129.9,129.7,129.1,128.7,128.5,112.6,105.2,83.6,77.2,76.9,62.1,26.9,26.4;
HRMS(ESI):Calcd for C22H22O7[M+H]+:399.1438,found:399.1425;
制备步骤为:
(1)在空气条件下,圆底烧瓶保持搅拌状态,加入N-Boc酰胺,式IIa结构式所示的葡萄糖,叔丁醇锂,DMF,室温下反应;
(2)反应后经二氯甲烷萃取,饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIa;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后硅胶柱层析,乙酸乙酯和石油醚的混合溶剂淋洗,分离得式IVa结构式所示化合物,即为目标产物,
4.根据权利要求2所述的糖缀合物的制备方法,其特征在于:所述糖缀合物的结构式为
其相应参数为:
1H NMR(600MHz,CDCl3):δ8.04(d,J=8.2Hz,2H),7.95–7.92(m,2H),7.68–7.64(m,2H),7.55–7.48(m,1H),7.40–7.34(m,2H),6.01–6.00(m,1H),5.54–5.53(m,1H),4.70–4.67(m,1H),4.65–4.63(m,1H),4.60–4.52(m,2H),1.51(s,3H),1.28(s,3H);
13C NMR(150MHz,CDCl3):δ166.2,165.3,164.7,163.9,133.8,133.4(q),132.9–132.3(m),130.4(q),129.9(q),129.5–128.5(m),118.1–116.7(m),112.7,105.1,83.6,76.8,62.8,61.7,26.9,26.3;
HRMS(ESI):Calcd for C23H21NO7[M+H]+:424.1391,found:424.1396;
制备步骤为:
(1)在空气条件下,圆底烧瓶保持搅拌状态,加入带氰基酰胺,式IIa结构式所示的葡萄糖,叔丁醇锂,DMF,室温下反应;
(2)二氯甲烷萃取,饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIb;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后硅胶柱层析,乙酸乙酯和石油醚的混合溶剂淋洗,分离得式IVb结构式所示化合物,
5.根据权利要求2所述的糖缀合物的制备方法,其特征在于:所述糖缀合物的结构式为
其相应参数为:
1H NMR(600MHz,CDCl3):δ8.22–8.18(m,2H),8.11(d,J=8.7Hz,2H),7.95–7.92(m,2H),7.55–7.48(m,1H),7.40–7.34(m,2H),6.01(d,J=3.7Hz,1H),5.55(d,J=3.0Hz,1H),4.71–4.69(m,1H),4.65(t,J=3.1Hz,1H),4.62–4.54(m,2H),1.52(s,3H),1.29(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–163.6(m),150.8(q),135.0,134.4,134.0,133.5,131.1(q),129.9(q),129.5–128.6(m),123.9,123.7,112.8(q),105.2(q),83.6(q),63.0,61.6,26.9,26.3;
HRMS(ESI):Calcd for C22H21NO9[M+H]+:444.1289,found:444.1290;
制备步骤为:
(1)在空气条件下,圆底烧瓶保持搅拌状态,加入带硝基酰胺,式IIa结构式所示的葡萄糖,叔丁醇锂,DMF,室温下反应;
(2)二氯甲烷萃取,饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIc;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后硅胶柱层析,乙酸乙酯和石油醚的混合溶剂淋洗,分离得式IVc结构式所示化合物,
6.根据权利要求2所述的糖缀合物的制备方法,其特征在于:所述糖缀合物的结构式为
其相应参数为:
1H NMR(600MHz,CDCl3):δ7.96–7.82(m,4H),7.53–7.33(m,2H),7.19–7.13(m,2H),5.60–5.98(m,1H),5.53–5.49(m,1H),4.70–4.66(m,1H),4.64–4.61(m,1H),4.58–4.48(m,2H),2.33(d,J=9.7Hz,4H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ165.3,164.4,143.7,143.0,132.8,132.3,128.95,128.91,128.4–127.5(m),125.9,125.4,111.5,104.2,83.1,75.7,61.0,25.9,25.4,20.9;
HRMS(ESI):Calcd for C23H24O7[M+H]+:413.1595,found:413.1623;
制备步骤为:
(1)在空气条件下,圆底烧瓶保持搅拌状态,加入带甲基酰胺,式IIa结构式所示的葡萄糖,叔丁醇锂,DMF,室温下反应;
(2)二氯甲烷萃取,饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIId;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后硅胶柱层析,乙酸乙酯和石油醚的混合溶剂淋洗,分离得式IVd结构式所示化合物,
7.根据权利要求2所述的糖缀合物的制备方法,其特征在于:所述糖缀合物的结构式为
其相应参数为:
1H NMR(600MHz,CDCl3):δ7.95(d,J=7.3Hz,2H),7.54–7.51(m,1H),7.50–7.47(m,1H),7.40–7.34(m,2H),7.50–7.47(m,1H),7.15–7.12(m,1H),6.46–6.41(m,1H),5.99–5.98(m,1H),5.49(d,J=3.0Hz,1H),4.68–4.62(m,2H),4.56–4.47(m,2H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–165.4(q),158.3–157.4(q),147.3–146.8(q),144.1–143.6(q),133.8–133.3(q),129.9,129.7–129.1(q),128.7–128.5(q),119.3,118.4,112.6,112.2,112.0,105.6,84.6,60.7,26.9,26.4;
HRMS(ESI):Calcd for C20H20O8[M+H]+:389.1231,found:389.1237;
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带呋喃酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),叔丁醇锂(4.8mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIe;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVe结构式所示化合物91.9mg,产率79%,
8.根据权利要求2所述的糖缀合物的制备方法,其特征在于:所述糖缀合物的结构式为
其相应参数为:
1H NMR(600MHz,CDCl3):δ7.95(d,J=7.3Hz,2H),7.54–7.51(m,1H),7.50–7.47(m,1H),7.40–7.34(m,2H),7.50–7.47(m,1H),7.15–7.12(m,1H),6.46–6.41(m,1H),5.99–5.98(m,1H),5.49(d,J=3.0Hz,1H),4.68–4.62(m,2H),4.56–4.47(m,2H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–165.4(q),158.3–157.4(q),147.3–146.8(q),144.1–143.6(q),133.8–133.3(q),129.9,129.7–129.1(q),128.7–128.5(q),119.3,118.4,112.6,112.2,112.0,105.6,84.6,60.7,26.9,26.4;
HRMS(ESI):Calcd for C20H20O8[M+H]+:389.1231,found:389.1237;
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带呋喃酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),碳酸钠(6.4mg,0.06mmol),再加入分子筛干燥的乙腈1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIe;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVe结构式所示化合物80.3mg,产率69%,
9.根据权利要求2所述的糖缀合物的制备方法,其特征在于:所述糖缀合物的结构式为
其相应参数为:
1H NMR(600MHz,CDCl3):δ7.95(d,J=7.3Hz,2H),7.54–7.51(m,1H),7.50–7.47(m,1H),7.40–7.34(m,2H),7.50–7.47(m,1H),7.15–7.12(m,1H),6.46–6.41(m,1H),5.99–5.98(m,1H),5.49(d,J=3.0Hz,1H),4.68–4.62(m,2H),4.56–4.47(m,2H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–165.4(q),158.3–157.4(q),147.3–146.8(q),144.1–143.6(q),133.8–133.3(q),129.9,129.7–129.1(q),128.7–128.5(q),119.3,118.4,112.6,112.2,112.0,105.6,84.6,60.7,26.9,26.4;
HRMS(ESI):Calcd for C20H20O8[M+H]+:389.1231,found:389.1237;
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带呋喃酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),CsF(9.1mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIe;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVe结构式所示化合物98.9mg,产率85%,
10.根据权利要求2所述的糖缀合物的制备方法,其特征在于:所述糖缀合物的结构式为
其相应参数为:
1H NMR(600MHz,CDCl3):δ7.95(d,J=7.3Hz,2H),7.54–7.51(m,1H),7.50–7.47(m,1H),7.40–7.34(m,2H),7.50–7.47(m,1H),7.15–7.12(m,1H),6.46–6.41(m,1H),5.99–5.98(m,1H),5.49(d,J=3.0Hz,1H),4.68–4.62(m,2H),4.56–4.47(m,2H),1.50(s,3H),1.27(s,3H);
13C NMR(150MHz,CDCl3):δ166.2–165.4(q),158.3–157.4(q),147.3–146.8(q),144.1–143.6(q),133.8–133.3(q),129.9,129.7–129.1(q),128.7–128.5(q),119.3,118.4,112.6,112.2,112.0,105.6,84.6,60.7,26.9,26.4;
HRMS(ESI):Calcd for C20H20O8[M+H]+:389.1231,found:389.1237;
制备步骤为:
(1)在空气条件下,向干燥、洁净的25mL圆底烧瓶中依次加入磁子,带呋喃酰胺(106.8mg,0.3mmol),式IIa结构式所示的葡萄糖(85.5mg,0.45mmol),碳酸铯(19.8mg,0.06mmol),再加入分子筛干燥的DMF 1.5mL,室温下反应24h;
(2)二氯甲烷萃取(25mL×3次),饱和食盐水洗涤,合并有机相,无水硫酸钠干燥得到中间体IIIe;
(3)再与N-Boc酰胺底物反应,滤液旋转蒸发除溶剂,浓缩后200-300目硅胶柱层析,乙酸乙酯和石油醚的混合溶剂(1:4)淋洗。分离得式IVe结构式所示化合物64.0mg,产率55%,
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