CAS: 2492-87-7; (2R,3S,4S,5R,6S)-2-(Hydroxymethyl)-6-(4-Nitrophenoxy)Tetrahydro-2H-Pyran-3,4,5-Triol

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CAS号5987-78-0 对硝基苯基 2,3,4,6-O... | CAS号100-02-7 对硝基苯酚 | CAS号572-09-8 2,3,4,6-四乙酰氧基-a... | CAS号133-89-1 尿苷二磷酸葡萄糖 | CAS号2280-44-6 D-glucopyranose | CAS号604-69-3 β-D-葡萄糖五乙酸酯 | CAS号83-87-4 α,β-D-五乙酸葡萄糖 | CAS号39698-28-7 p-nitrophenyl 6... | CAS号3482-57-3 4-硝基苯基-β-D-纤维二糖苷 | CAS号106927-48-4 4-硝基苯基-β-D-纤维三糖苷 | CAS号26255-70-9 对硝基苯基-b-D-昆布二糖苷 | CAS号129411-62-7 P-硝基苯基 B-D-纤维四糖苷 | CAS号498-07-7 1,6-脱水-β-D-葡萄糖 | CAS号5987-78-0 对硝基苯基 2,3,4,6-O... | CAS号17691-02-0 对氨基苯基 beta-D-乳吡喃糖苷 | CAS号85026-55-7 络缌 | CAS号78617-12-6 庚基-β-D-吡喃葡萄糖苷 | CAS号4419-94-7 4-硝基苯基-β-D-乳糖苷

1,2,3,4,6-Alpha-D-葡萄糖五乙酸酯置于molecular Sieve,Silver Imidazolate,氢溴酸,Sodium Methylate,Zinc(II) Chloride体系中,用 甲醇,溶剂黄146 用作溶剂,化学反应生成4-硝基苯-β-D-吡喃葡萄糖苷
参考文献:用tempo和次氯酸叔丁酯改进β-D-葡糖醛酸内酯的合成
标题:用tempo和次氯酸叔丁酯改进β-D-葡糖醛酸内酯的合成
摘要:Tempo / T-Buocl用于将β-D-葡萄糖苷高产率地氧化为β-D-葡萄糖醛酸苷,这是从标记的葡萄糖样品制备标记的葡萄糖醛酸苷的关键步骤.
Doi:10.1016/s0040-4039(98)02565-9

专利信息

专利号:US-2003138880-A1
优先权日:2001-08-24
标 题:Solid-phase synthesis of oligosaccharides and glycopeptides using glycosynthases
发明人：WITHERS STEPHEN G; JENSEN KNUD J; PETERSEN LARS; TOLBORG JAKOB L
权利人:UNIV BRITISH COLUMBIA
摘要:The present invention provides materials and methods for the solid-phase synthesis of oligosaccharides and glycopeptides. Such materials and methods include mutant glycosidase enzymes, or “glycosynthases,â€? chemically-derivatized acceptor molecules, and specific solid support matrices.

专利号:US-11473116-B2
优先权日:2018-02-23
标题 :Synthesis of glucan comprising alpha-1,3 glycosidic linkages with phosphorylase enzymes
发明人：YU ZHEYONG; KRALJ SLAVKO; ZHANG ZHENGHONG; HOWE LAURIE A
权利人:NUTRITION & BIOSCIENCES USA 4 INC
摘要:Reaction compositions are disclosed herein comprising at least water, beta-glucose -1-phosphate (beta-G1P), an acceptor molecule, and an alpha-1,3-glucan phosphorylase enzyme. These reactions can synthesize oligosaccharides and polysaccharides with alpha-1,3 glycosidic linkages. Further disclosed are alpha-1,3-glucan phosphorylase enzymes and methods of use thereof.

专利号:US-2007004010-A1
优先权日:2002-09-12
标题 :Engineered Enzymes and Their Use for Synthesis of Thioglycosides
发明人：WITHERS STEPHEN G; JAHN MICHAEL
权利人:UNIV BRITISH COLUMBIA
摘要:Mutant glycosidases in which the amino acid in the active site that serves as the acid, base or acid/base-catalyst is converted from a carboxylic acid to some other amino acid (for example to a simple alkyl, as in alanine or glycine) can catalyze the reaction of a thiosugar acceptor and an activated donor to form a thioglycoside. The “thioglycoligasesâ€? represent a novel class of mutant enzymes, and represent a first aspect of the invention. Thioglycoligases can be used in accordance with the method of the invention to couple a thiosugar acceptor and an activated donor to form a thioglycoside. By selection of the donor and acceptor species, as well as the specific enzyme employed, thioglycosides of different structure and stereochemistry can be obtained.

专利号:US-5663342-A
优先权日:1994-03-08
标 题 :2-chloro and 2-bromo derivatives of 1,5-iminosugars
发明人：BARTA THOMAS E; MUELLER RICHARD A
权利人:SEARLE & CO
摘要:Novel 2-chloro and 2-bromo derivatives of 1,5-iminosugars are disclosed, especially such derivatives of 1,5-dideoxy-1,5-imino-D-glucitol. These compounds are useful inhibitors of glucosidase enzymes and also are useful as antiviral agents and as intermediates for the synthesis of other enzyme inhibitors and antiviral compounds.

专利号:US-4745062-A
优先权日:1983-12-06
标 题:Plasmid vectors for cloning and expression of a protein in a microorganism, comprising at least one promoter for expression of β-glucosidase in yeasts; microorganisms containing these plasmids; a fermentation process and the enzymes obtained
发明人：GUERINEAU MICHEL M; RAYNAL ALAIN
权利人:CENTRE NAT RECH SCIENT
摘要:The present invention relates to a plasmid vector for cloning and expression of a protein in a microorganism, which comprises at least one structural gene which codes the synthesis of the said protein and elements which ensure the expression of the said structural gene in a microorganism, and wherein the promotion of the structural gene is ensured by the expression promotor of the β-glucosidase gene in yeasts. n The present invention also relates to microorganisms transformed by the said vectors, in particular a transformed strain of S. cerevisiae, a fermentation process using the said vectors, and the enzymes prepared by the said process, in particular β-glucosidase.

专利号:US-2017299530-A1
优先权日:2013-12-12
标题 :Compounds and methods for analysis and synthesis of saccharide compounds, and method for quantitating saccharide
发明人：YANG WEN-BIN
权利人:ACADEMIA SINICA
摘要:Provided is a method for quantitating a saccharide in a liquid sample. The method comprises incubating the liquid sample with 2,3-naphthalenediamine in the presence of iodine to allow a naphthimidazole group to be linked to the saccharide to obtain a first mixture; obtaining an 1 H-NMR spectrum of the first mixture; and comparing, in said 1 H-NMR spectrum, the intensity or integral of a proton signal corresponding to the saccharide to the intensity or integral of a proton signal corresponding to an internal standard present in the first mixture.