CAS: 3767-28-0; (2R,3S,4S,5R,6R)-2-(Hydroxymethyl)-6-(4-Nitrophenoxy)Tetrahydro-2H-Pyran-3,4,5-Triol

相似化合物

2492-87-7 7493-95-0 3150-24-1

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Sodium;[(2R,3R,4S,5S,6R)-4,5-Dihydroxy-6-(Hydroxymethyl)-2-(4-Nitrophenoxy)Oxan-3-Yl] Sulfate置于abalone Sulfatase体系中,用 Acetate Buffer 用作溶剂,化学反应 75.0H,以28%的收率获得对硝基苯-α-D-葡萄糖吡喃苷
参考文献:Sulfatase-Catalyzed Assembly Of Regioselectively O-Sulfonated P-Nitrophenyl α-D-Gluco-And α-D-Mannopyranosides
标题:Sulfatase-Catalyzed Assembly Of Regioselectively O-Sulfonated P-Nitrophenyl α-D-Gluco-And α-D-Mannopyranosides
摘要:A Chemoenzymic Methodology Is Extended To The Library Synthesis Of Regioselectively O-Sulfonated Pnp D-Gluco And D Mannopyranosides. The Method Involves The Sequential Reactions Of Chemical O-Sulfonation And Sulfatase-Catalyzed O-Desulfonation. Pnp 2,6-Di-O-Suolfo-Alpha-D-Glucopyranoside And Pnp 3,6-Di-O-Sulfo-Alpha-D-Mannopyranoside Were Obtained As Sodium Salts Using Chemical Methods By Way Of Dibutylstannylene Acetals Or Tributylstannyl Ethers. They Were Then Applied To Enzyme Reactions Using Three Molluscan Enzymes (Snail,Limpet,And Abalone). The Sulfatase Reactions Cleaved A Sulfate Group At The Secondary O-2 Or O-3 Position To Yield The Corresponding Pnp 6-O-Sulfo Sugars. Neither Pnp 6-O-Sulfo-Alpha-D-Glucopyranoside Nor 6-O-Sulfo-Alpha-D-Mannopyranoside Became The Enzyme Substrate. Evidently,The Molluscan Sulfatases Have A Tendency To Cleave The Secondary O-Sulfo Group With Assistance From The 6-O-Sulfo Group. (C) 2004 Elsevier Ltd. All Rights Reserved.
Doi:10.1016/j.Carres.2004.03.026

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-8809023-B2
优先权日:2009-08-19
标题 :Variants of glucoamylase
发明人：DEGN PETER EDVARD; BOTT RICHARD; VROEMEN CASPER WILLEM; SCHEFFERS MARTIJN SILVAN; AEHLE WOLFGANG
权利人:DEGN PETER EDVARD; BOTT RICHARD; VROEMEN CASPER WILLEM; SCHEFFERS MARTIJN SILVAN; AEHLE WOLFGANG; DANISCO US INC
摘要:The present invention relates to combinatorial variants of a parent glucoamylase that have altered properties for reducing the synthesis of condensation products during hydrolysis of starch. Accordingly the variants of a parent glucoamylase are suitable such as for use within brewing and glucose syrup production. Also disclosed are DNA constructs encoding the variants and methods of producing the glucoamylase variants in host cells.

专利号:US-11806363-B1
优先权日:2023-03-20
标题 :Green synthesis of silver nanoparticles using euphorbia dendroides aqueous extract
发明人：EL-MOATY HEBA IBRAHIM ABD; ABU-KHUDIR RASHA; KHALIL MOSTAFA M H; SOLIMAN NADIA A
权利人:UNIV KING FAISAL
摘要:Euphorbia dendroides silver nanoparticles can have a crystalline structure and an average particle size ranging from about 7 nm to about 13 nm. The Euphorbia dendroides silver nanoparticles may be synthesized by providing a Euphorbia dendroides extract and combining the Euphorbia dendroides extract with silver nitrate. The resultant Euphorbia dendroides silver nanoparticles may be useful in treating a variety of conditions including bacterial infections, diabetes, inflammation, and cancer.