CAS: 147-81-9; Dl-Arabinose

相似化合物

1114-34-7 10323-20-3 50-69-1

上下游产品

D-ribose L-riboseL-ribose D-Glyceraldehyde Glycolaldehyde(3S,4R,5R)-2-Bromo-tetrahydro-pyran-3,4,5-triol (3S,4S)-3-(2-Hydroxy-ethyl)-3,4-dihydro-2H-pyran-4-ol (3S,4S)-3-[2-(tert-Butyl-diphenyl-silanyloxy)-ethyl]-3,4-dihydro-2H-pyran-4-ol 25H40O6C25H40O6

D-甘露糖置于ammonium Vanadate 高氯酸体系中,用 水 用作溶剂,55.0 °C,100.0 Kpa 条件下,反应生成阿拉伯糖
参考文献:压力对钒(v)氧化单糖速率的影响
标题:压力对钒(v)氧化单糖速率的影响
摘要:摘要压力对钒(v)中d-半乳糖,D-葡萄糖,D-甘露糖,D-果糖,L-山梨糖,L-阿拉伯糖,D-核糖和d-木糖的氧化速率的影响.研究了高氯酸.单糖的活化体积为正且近似相等(7.5+/-1.3 Ml.Mol-1),对至少至多200 Mpa的压力依赖性可忽略不计.这些观察结果表明形成活化的复合物的相同机理.提出了一种在单糖-钒(v)配合物的分解速率确定中涉及通过氢原子转移形成自由基的机理.
Doi:10.1016/0008-6215(88)80060-0

专利信息

专利号:US-12188072-B2
优先权日:2018-03-19
标题 :Compositions and methods for rapid in vitro synthesis of bioconjugate vaccines in vitro via production and N-glycosylation of protein carriers in detoxified prokaryotic cell lysates
发明人：JEWETT MICHAEL CHRISTOPHER; STARK JESSICA CAROL; DELISA MATTHEW P; JAROENTOMEECHAI THAPAKORN
权利人:UNIV NORTHWESTERN; UNIV CORNELL
摘要:Disclosed are methods, systems, components, and compositions for cell-free synthesis of glycosylated carrier proteins. The glycosylated carrier proteins may be utilized in vaccines, including anti-bacterial vaccines. The glycosylated carrier proteins may include a bacterial polysaccharide conjugated to a carrier, which may be utilized to generate an immune response in an immunized host against the polysaccharide conjugated to the carrier. The glycosylated carrier proteins may be synthesized in cell-free glycoprotein synthesis (CFGpS) systems using prokaryote cell lysates that are enriched in components for glycoprotein synthesis such as oligosaccharyltransferases (OSTs) and lipid-linked oligosaccharides (LLOs) including OSTs and LLOs associated with synthesis of bacterial O antigens.

专利号:US-2022395800-A1
优先权日:2019-11-04
标题:Device for automated synthesis of oligo- and polysaccharides
发明人：SEEBERGER PETER H; DANGLAD FLORES JOSE; LE MAI HOANG KIM; PARDO VARGAS ALONSO; SLETTEN ERIC; SALWICZEK MARIO
权利人:MAX PLANCK GESELLSCHAT ZU RFERDERUNG DER WSS E V; GlycoUniverse GmbH & Co KG&A
摘要:The present invention generally relates to automated synthesis technology, and more particularly, to a device and method for automated synthesis of oligo- and polysaccharides on a solid support. In particular the present invention relates to a device for automated synthesis of oligo- and polysaccharides on a solid support comprising a reaction vessel, a reagent storing component, a reagent delivery system, a cooling device for cooling reaction vessel, and a pre-cooling device for pre-cooling the reagents to be supplied.

专利号:US-2008293096-A1
优先权日:2004-04-30
标 题:Enzyme and Template-Controlled Synthesis of Silica from Non-Organic Silicon Compounds as Well as Aminosilanes and Silazanes and Use Thereof
发明人：MULLER WERNER E G; SCHRODER HEINZ C
权利人:MULLER WERNER E G; SCHRODER HEINZ C
摘要:The present invention relates to a method for synthesis of amorphous silicon dioxide (silica, condensation products of silicic acid) and other polymeric metal (IV) compounds from non-organic silicon compounds or metal (IV) compounds as well as from aminosilanes and silazanes, whereby (I) a template (collagen or another molecule, interacting with orthosilicic acid or polymeric silicic acid and salts thereof or other metal (IV) compounds) and (2) a silicase/carbonic anhydrase or a silicatein or similar polypeptide are used for synthesis. Said invention also relates to the technical use thereof.

专利号:US-11046978-B2
优先权日:2016-03-16
标 题:Synthesis of isoprenoids and derivatives
发明人：GONZALEZ RAMON; CLOMBURG JAMES M; CHEONG SEOKJUNG
权利人:UNIV RICE WILLIAM M
摘要:This disclosure generally relates to the use of enzyme combinations or recombinant microbes comprising same to make isoprenoid precursors, isoprenoids and derivatives thereof including prenylated aromatic compounds. Novel metabolic pathways exploiting Claisen, aldol, and acyioin condensations are used instead of the natural mevalonate (MVA) pathway or 1-deoxy-d-xylulose 5-phosphate (DXP) pathways for generating isoprenoid precursors such as isopentenyl pyrophosphate (IPP), dimethylallyl pyrophosphate (DMAPP), and geranyl pyrophosphate (GPP). These pathways have the potential for better carbon and or energy efficiency than native pathways. Both decarboxylative and non-carboxylative condensations are utilized, enabling product synthesis from a number of different starting compounds. These condensation reactions serve as a platform for the synthesis of isoprenoid precursors when utilized in combination with a variety of metabolic pathways and enzymes for carbon rearrangement and the addition/removal of functional groups. Isoprenoid alcohols are key intermediary products for the production of isoprenoid precursors in these novel synthetic metabolic pathways.

专利号:US-6150130-A
优先权日:1993-12-27
标题 :DNA strands useful for the synthesis of xanthophylls and the process for producing the xanthophylls
发明人：MISAWA NORIHIKO; KONDO KEIJI; KAJIWARA SUSUMU; YOKOYAMA AKIHIRO
权利人:KIRIN BREWERY; MARINE BIOTECH INST CO LTD
摘要:Disclosed are the following DNA strands relating to the synthesis of keto group-containing xanthophylls such as astaxanthin and the like, and the techniques relating to the production of xanthophylls by genetic engineering: A DNA strand having a nucleotide sequence which encodes a polypeptide having an enzyme activity for converting a methylene group at the 4-position of a beta -ionone ring into a keto group. A DNA strand having a nucleotide sequence which encodes a polypeptide having an enzyme activity for converting a methylene group at the 4-position of a 3-hydroxy- beta -ionone ring into a keto group. A DNA strand having a nucleotide sequence which encodes a polypeptide having an enzyme activity for adding a hydroxyl group to the 3-carbon of a 4-keto- beta -ionone ring. It is possible to produce a variety of xanthophylls such as canthaxanthin, astaxanthin and the like by introducing the DNA strands into an appropriate microorganism such as Escherichia coli and the like.

专利号:WO-9839347-A3
优先权日:1997-03-05
标题:Synthesis of l-ribose and 2-deoxy l-ribose
发明人：JUNG MICHAEL E; XU YUE
权利人:UNIV CALIFORNIA; JUNG MICHAEL E; XU YUE
摘要:A method for synthesizing L-ribose (1) and 2-deoxy L-ribose (12) from inexpensive D-ribose (2) is provided. The 5-O-trityl ribose (3) (prepared in 70 % yield from D-ribose) is reduced with borohydride to give the tetrol (4), which is then peracetylated to the tetraacetate (5). Hydrolysis of the trityl ether followed by Swern oxidation affords the aldehyde (7) via the alcohol (6). This aldehyde is a protected form of L-ribose, being L-ribose 2,3,4,5,-tetraacetate. Mild basic hydrolysis of the acetate affords L-ribose itself (1), thus ending an efficient six-step synthesis of (1) from (2) which proceeds in 39 % overall yield. In a second aspect of the invention, L-ribose is converted into the β-selenophenyl ribofuranoside (10) via the tetraester (9) in 71 % isolated yield for the four steps. Treatment of (10) with tributylstannane and AIBN furnishes in 84 % yield the tribenzoyl 2-deoxy-L-ribofuranoside (11) which, on basic hydrolysis, gives 2-deoxy L-ribose (12) in high yield. In a third aspect of the invention, L-arabinose (13) is converted into 2-deoxy L-ribose (12) via the arabinopyranosyl bromide (14), via similar reductive rearrangement with tributylstannane to give the 2-deoxy ribopyranose tribenzoate (16). Hydrolysis yields 2-deoxy L-ribose. In a third aspect of the invention, L-arabinose is converted into 2-deoxy L-ribose by an alternate route.