92052-38-5

Basic information

• Product Name: 1-alpha-trichloroacetimidoyl-2,3,6-O-triacetylglucopyranosyl-4-alpha-(2′,3′,4',6'-O-tetraacetyl)glucopyranoside
• Synonyms: 1-alpha-trichloroacetimidoyl-2,3,6-O-triacetylglucopyranosyl-4-alpha-(2′,3′,4',6'-O-tetraacetyl)glucopyranoside
• CAS NO: 92052-38-5
• Molecular Weight: 780.949
• Mol File: 92052-38-5.mol
• Article Data: 40

Chemical Properties

• CAS DataBase Reference: 1-alpha-trichloroacetimidoyl-2,3,6-O-triacetylglucopyranosyl-4-alpha-(2′,3′,4',6'-O-tetraacetyl)glucopyranoside(CAS DataBase Reference)
• NIST Chemistry Reference: 1-alpha-trichloroacetimidoyl-2,3,6-O-triacetylglucopyranosyl-4-alpha-(2′,3′,4',6'-O-tetraacetyl)glucopyranoside(92052-38-5)
• EPA Substance Registry System: 1-alpha-trichloroacetimidoyl-2,3,6-O-triacetylglucopyranosyl-4-alpha-(2′,3′,4',6'-O-tetraacetyl)glucopyranoside(92052-38-5)

Safety Data

• Hazardous Substances Data: 92052-38-5(Hazardous Substances Data)

Upstream product

• 18464-08-9 2,3,6-tri-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-D-glucopyranose 
• 545-06-2 trichloroacetonitrile 
• 5346-90-7 α-D-cellobiose octaacetate 
• 66073-13-0 α-D-glucopyranose-4-O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-2,3,6-triacetate 
• 5328-50-7 D-cellobiose octaacetate 
• 18464-08-9 2,3,6,2',3',4',6'-hepta-O-acetyl-lactose 
• 18464-08-9 4’-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-2’,3’,6’-tri-O-acetyl-D-glucopyranose 
• 34213-32-6 lactose octaacetate 
• 3616-19-1 lactose octaacetate 
• 3616-19-1 1',2',3',6',2,3,4,6-octa-O-acetyl-β-D-lactose 
• 5160-10-1 2,3,6-tetra-O-acetyl-4-O-(2',3',4',6'-tetra-O-acetyl-β-D-galactopyranosyl)-D-glucopyranosylbromide 
• 5965-66-2 LACTOSE 
• 18464-08-9 4’-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-2’,3’,6’-tri-O-acetyl-D-glucopyranose 
• 3616-19-1 1,2,3,6,2',3',4',6'-octa-O-acetylmaltose 

Downstream Products

• 215102-70-8 allyl (2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1->4)-(2,3,6-tri-O-acetyl-α-D-glucopyranosyl)-(1->6)-2-deoxy-3,4-bis(O-p-methylbenzoyl)-2-phthalimido-β-D-glucopyranoside 
• 302346-96-9 (4,5-dimethoxy-2-nitrophenyl)methyl O-(2,4,6-tri-O-acetyl-β-D-galactopyranosyl)-(1->4)-O-2,3,4,6-tetra-O-acetyl-β-D-glucopyranoside 
• 153253-42-0 2-[2-(2-azidoethoxy)ethoxy]ethyl (2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1->4)-2,3,6-tri-O-acetyl-β-D-glucopyranoside 
• 1292810-99-1 4-(2'',2''',3'',3''',4'',4''',6'',6'''-octa-O-acetyl-β-D-cellobiopyranosyl)-2',4'-dibenzyloxy-2-hydroxybibenzyl 
• 1292811-00-7 4-(2'',2''',3'',3''',4'',4''',6'',6'''-octa-O-acetyl-β-D-maltopyranosyl)-2',4'-dibenzyloxy-2-hydroxybibenzyl 
• 1252764-11-6 1β-(m-iodo)benzyl-hepta-O-acetyl cellobioside 
• 1252764-12-7 1β-(m-iodo)benzyl cellobioside 
• 67310-50-3 Benzyl O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-(1->4)-O-2,3,6-tri-O-acetyl-β-D-glucopyranoside 
• 6992-65-0 benzyl β-D-glucopyranosyl-(1->4)-β-D-glucopyranoside 
• 568586-68-5 (3R,4R,5R)-3-acetoxy-5-acetyloxymethyl-N-benzyloxycarbonyl-4-{[(tetra-O-acetyl-β-D-glucopyranosyl)-(1->4)-O-(tri-O-acetyl-β-D-glucosyl)]oxy}piperidine 
• 1352299-64-9 (3S,4S,6S)-2-(Acetoxymethyl)-6-((3R,4S,6R)-4,5-diacetoxy-2-(acetoxymethyl)-6-(3-(5-(2-(benzyloxy)-2-oxoethyl)-3-tert-butyl-2,4-dioxoimidazolidin-1-yl)propoxy)tetrahydro-2H-pyran-3-yloxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate 
• 1352299-34-3 C₅₁H₇₁N₃O₂₃ 
• 1385047-46-0 allyl 4',6'-O-p-methoxybenzylidene-β-D-glucopyranosyl-(1->4)-β-D-glucopyranoside 
• 1385047-48-2 allyl 2',3'-di-O-benzyl-4',6'-O-p-methoxybenzilidene-β-D-glucopyranosyl-(1->4)-2,3,6-tri-O-benzyl-β-D-glucopyranoside 

Relevant articles and documents

Methyl b-lactoside [methyl b-D-galactopyranosyl- (1!4)-b-D-glucopyranoside] monohydrate: A solvomorphism study

Methyl β-lactoside [methyl β-d-galacto-pyranosyl-(1→4)-β-d-gluco-pyran-oside] monohydrate, C13H24O11·H2O, (I), was obtained via spontaneous transformation of methyl β-lactoside methanol solvate, (II), during air-drying. Cremer-Pople puckering parameters indicate that the β-d-Galp (β-d-galacto-pyranos-yl) and β-d-Glcp (β-d-gluco-pyranos-yl) rings in (I) adopt slightly distorted 4 C 1 chair conformations, with the former distorted towards a boat form (B C1,C4) and the latter towards a twist-boat form (O5 S C2). Puckering parameters for (I) and (II) indicate that the conformation of the βGalp ring is slightly more affected than the βGlcp ring by the solvomorphism. Conformations of the terminal O-gly-co-sidic linkages in (I) and (II) are virtually identical, whereas those of the inter-nal O-glycosidic linkage show torsion-angle changes of 6° in both C - O bonds. The exocyclic hy-droxy-methyl group in the βGalp residue adopts a gt conformation (C4′ anti to O6′) in both (I) and (II), whereas that in the βGlcp residue adopts a gg (gauche-gauche) conformation (H5 anti to O6) in (II) and a gt (gauche-trans) conformation (C4 anti to O6) in (I). The latter conformational change is critical to the solvomorphism in that it allows water to participate in three hydrogen bonds in (I) as opposed to only two hydrogen bonds in (II), potentially producing a more energetically stable structure for (I) than for (II). Visual inspection of the crystalline lattice of (II) reveals channels in which methanol solvent resides and through which solvent might exchange during solvomorphism. These channels are less apparent in the crystalline lattice of (I).

Self-Promoted Glycosylation for the Synthesis of β-N-Glycosyl Sulfonyl Amides

N-Glycosyl N-sulfonyl amides have been synthesized by a self-promoted glycosylation, i. e. without any catalysts, promotors or additives. When the reactions were carried out at lower temperatures a mixture of N- and O-glycosides were observed, where the latter rearranged to give the β-N-glycosides at elevated temperatures. By this method sulfonylated asparagine derivatives can be selectively β-glycosylated in high yields by trichloroacetimidate glycosyl donors of different reactivity including protected glucosamine derivatives. The chemoselectivity in the glycosylations as well as the rearrangements from O-glycosides to β-N-glycosides gives information of the glycosylation mechanism. This method gives access to glycosyl sulfonyl amides under mild conditions.

Sialyloligosaccharide-quantum dot conjugate as well as preparation method and application thereof

The invention relates to a sialyloligosaccharide-quantum dot conjugate, a preparation method of the conjugate, and an application of the conjugate in virus detection. The sialyloligosaccharide-quantumdot conjugate provided by the invention is prepared by