18469-06-2

Basic information

• Product Name: .beta.-D-Allopyranoside, methyl
• Synonyms: .beta.-D-Allopyranoside, methyl
• CAS NO: 18469-06-2
• Molecular Formula: C₇H₁₄O₆
• Molecular Weight: 0
• Mol File: 18469-06-2.mol
• Article Data: 97

Chemical Properties

• Appearance: /
• CAS DataBase Reference: .beta.-D-Allopyranoside, methyl(CAS DataBase Reference)
• NIST Chemistry Reference: .beta.-D-Allopyranoside, methyl(18469-06-2)
• EPA Substance Registry System: .beta.-D-Allopyranoside, methyl(18469-06-2)

Safety Data

• Hazardous Substances Data: 18469-06-2(Hazardous Substances Data)

Upstream product

• 2460-42-6 methyl-β-D-ribo-hexapyranoside-3-ulose 
• 1824-94-8 methyl beta-D-galactopyranoside 
• 67-56-1 methanol 
• 131488-68-1 (2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-(p-tolylthio)tetrahydro-2H-pyran-3,4,5-triol 
• 123972-53-2 3^I,2^II-anhydro-α-cyclodextrin 
• 79431-44-0 4''-O-α-maltotriosyl-stevioside 
• 3650-65-5 D-glucose ethylene dithioacetal 
• 301850-90-8 (R)-2-Hydroxy-octadecanoic acid [(1S,2R)-2,7-dihydroxy-8-methyl-1-((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxymethyl)-heptadecyl]-amide 
• 1374788-87-0 3-O-{[α-L-rhamnopyranosyl(1->4)][β-D-glucopyranosyl(1->6)]-β-D-glucopyranosyl}-26-O-β-D-glucopyranosyl-(25S)-5β-furostane-3β,22,26-triol 
• 24333-07-1 sarsaparilloside 
• 24332-93-2 Δ(20(22))-sarsaparilloside 
• 19057-61-5 parillin 

Downstream Products

• 14315-82-3 methyl 2,3,4,6-tetra-O-benzoyl-α-D-galactopyranoside 
• 6605-40-9 methyl 2,3,4,6-tetra-O-benzyl-β-D-glucopyranoside 
• 32849-03-9 methyl 2,3,4,6-tetra-O-benzoyl-α-D-glycopyranoside 
• 404022-83-9 C₃₅H₃₇NO₈S 
• 126709-11-3 1,5-anhydro-2,3,4,6-tetra-O-benzyl-1-hydrazi-D-glucitol 
• 126709-14-6 1-Azi-2,3,4,6-tetra-O-benzyl-1-deoxy-D-glucopyranose 
• 86496-30-2 (2S,3R,4R,5R)-2,3,4,6-tetrakis(benzyloxy)-5-hydroxyhexanal oxime 
• 83258-76-8 (3R,4S,5R,6R)-3,4,5-Tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-one oxime 
• 84799-77-9 methyl 2,3,4,6-tetra-O-benzyl-D-glucopyranoside 
• 13096-62-3 (3R,4S,5R,6R)-3,4,5-tris(benzyloxy)-6-((benzyloxy)methyl)tetrahydro-2H-pyran-2-one 
• 1616619-32-9 2,2-difluoro-2-((2R,3R,4S,5R,6R)-3,4,5-tris(benzyloxy)-6-(benzyloxymethyl)tetrahydro-2H-pyran-2-yl)ethanol 
• 1616619-33-0 2,2-difluoro-2-((2R,3R,4S,5R,6R)-3,4,5-tris(benzyloxy)-6-(benzyloxymethyl)tetrahydro-2H-pyran-2-yl)ethane-1,1-diol 
• 1616619-34-1 (5R,5aR,8aS,9S)-9-((2,2-difluoro-2-((2R,3R,4S,5R,6R)-3,4,5-tris(benzyloxy)-6-((benzyloxy)methyl)tetrahydro-2H-pyran-2-yl)ethyl)amino)-5-(4-hydroxy-3,5-dimethoxyphenyl)-5,5a,8a,9-tetrahydrofuro[3',4':6,7]naphtho[2,3-d][1,3]dioxol-6(8H)-one 
• 1616619-26-1 (5R,5aR,8aS,9S)-9-((2,2-difluoro-2-((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)ethyl)amino)-5-(4-hydroxy-3,5-dimethoxyphenyl)-5,5a,8a,9-tetrahydrofuro[3',4':6,7]naphtho[2,3-d][1,3]dioxol-6(8H)-one 

Relevant articles and documents

Carbon glycoside glycosylated tetravalent platinum compound as well as synthesis method and application thereof

The invention provides a carbon glycoside glycosylated tetravalent platinum compound, a synthesis method and application thereof. R1 and R2 are independently C1-C4 lower alkanes, R3 is glucose, galactose, mannose and ribose, different sugars are used as raw materials, and a series of carbon glycoside glycosylated tetravalent platinum compounds are synthesized through protection and deprotection reaction and metallization reaction of the sugars. The synthesis method is simple, the used raw materials are cheap and easy to obtain, the glycosylated tetravalent platinum compound has the capacity of targeting glucose transporter protein and has potential application value in the field of cancer treatment, introduction of a C-glucosidic bond enables the series of compounds to have the capacity of resisting hydrolysis of beta-glucosidase, and the compound is expected to be applied to the field of oral antitumor drugs.

Structure of the unusual Sinorhizobium fredii HH103 lipopolysaccharide and its role in symbiosis

Rhizobia are soil bacteria that form important symbiotic associations with legumes, and rhizobial surface polysaccharides, such as K-antigen polysaccharide (KPS) and lipopolysaccharide (LPS), might be important for symbiosis. Previously, we obtained a mutant of Sinorhizobium fredii HH103, rkpA, that does not produce KPS, a homopolysaccharide of a pseudaminic acid derivative, but whose LPS electrophoretic profile was indistinguishable from that of the WT strain. We also previously demonstrated that the HH103 rkpLMNOPQ operon is responsible for 5-acetamido-3,5,7,9-tetradeoxy-7-(3-hydroxybutyramido)-L-glyc-ero-L-manno-nonulosonic acid [Pse5NAc7(3OHBu)] production and is involved in HH103 KPS and LPS biosynthesis and that an HH103 rkpM mutant cannot produce KPS and displays an altered LPS structure. Here, we analyzed the LPS structure of HH103 rkpA, focusing on the carbohydrate portion, and found that it contains a highly heterogeneous lipid A and a peculiar core oligosaccharide composed of an unusually high number of hexuronic acids containing b-configured Pse5NAc7(3OHBu). This pseudaminic acid derivative, in its a-configuration, was the only structural component of the S. fredii HH103 KPS and, to the best of our knowledge, has never been reported from any other rhizobial LPS. We also show that Pse5NAc7(3OHBu) is the complete or partial epitope for a mAb, NB6-228.22, that can recognize the HH103 LPS, but not those of most of the S. fredii strains tested here. We also show that the LPS from HH103 rkpM is identical to that of HH103 rkpA but devoid of any Pse5NAc7(3OHBu) residues. Notably, this rkpM mutant was severely impaired in symbiosis with its host, Macroptilium atropurpureum.

Production of lactic acid derivatives from sugars over post-synthesized Sn-Beta zeolite promoted by WO3

Various metal oxides were used as co-catalysts to improve the production of alkyl lactate over Sn-Beta-P. WO3 exhibited the best promotion effect. The yield of MLA increased from 25% (6.5 g L?1) over Sn-Beta-P (0.2 g) to 52% (13.4 g L?1) over WO3 (0.1 g) and Sn-Beta-P (0.1 g) at 160 °C for 5 h and 3.1 wt% of glucose concentration. MLA yield of 38% was attained even at glucose concentration of 10 wt% and the space-time yield reached 7.1 g L?1 h?1. The action mechanism of WO3 was investigated. Fine WO3 particles adsorbed on surface of Sn-Beta-P in reaction media and decreased the silanol defects of Sn-Beta-P. This promotes retro-aldol of fructose, the rate-determining step of whole reaction, thus facilitated the formation of MLA. Kinetic studies indicate that the presence of WO3 decreased the activation energy of the retro-aldol of fructose. The binary solid WO3 and Sn-Beta-P is recyclable.