79902-95-7

Upstream product

• 5158-64-5 2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl bromide 
• 2280-44-6 D-Glucose 
• 10231-84-2 (4-nitro-phenyl)-α-L-fucopyranoside 
• 6696-41-9 alpha-L-fucose 
• 80832-26-4 benzyl 3-O-β-L-rhamnopyranosyl-β-D-galactopyranoside 
• 80832-27-5 2-O-benzoyl-3-O-α-L-rhamnopyranosyl-D-galactose 
• 117181-25-6 Benzyl 2-O-benzoyl-4,6-O-benzylidene-β-D-galactopyranoside 
• 80832-16-2 benzyl 2-O-benzoyl-4,6-O-benzylidene-3-O-(2,3,4-tri-O-acetyl-β-L-rhamnopyranosyl)-β-D-galactopyranoside 
• 83032-15-9 1,2:5,6-di-O-isopropylidene-3-O-(2,3,4-tridesoxy-6-O-tosyl-α-L-glycero-hex-2-enopyranosyl)-α-D-glucofuranose 
• 87735-46-4 3-O-(2-O-benzyl-α-L-fucopyranosyl)-1,2:5,6-di-O-isopropylidene-α-D-glucofuranose 
• 56822-53-8 3-O-α-L-fucopyranosyl-1,2:5,6-di-O-isopropylidene-α-D-glucofuranose 
• 86158-34-1 methyl 
• 80832-24-2 benzyl 2-O-benzoyl-3-O-α-L-rhamnopyranosyl-β-D-galactopyranoside 
• 80832-20-8 benzyl 2-O-benzoyl-4,6-O-benzylidene-3-O-(α-L-rhamnopyranosyl)-β-D-galactopyranoside 

Downstream Products

• 3615-41-6 L-Rhamnose 
• 50-99-7 D-glucose 

Relevant academic research and scientific papers

Regioselective synthesis of α-L-fucosyl-containing disaccharides by use of α-L-fucosidases of various origins

The authors report the regioselective synthesis of disaccharides containing a linked alpha-L-fucosyl group by use of alpha-L-fucosidases from various origin.

An α-L-fucosidase from Penicillium multicolor as a candidate enzyme for the synthesis of α (1→3)-linked fucosyl oligosaccharides by transglycosylation

A new α-L-fucosidase was partially purified from the culture broth of Penicillium multicolor, which was available commercially as a freeze dried powder by the name of Lactase-P. This enzyme catalysed the transglycosylation of fucose residue of p-nitrophenyl-α-L-fucopyranoside to give α-L-Fuc-(1→3)-D-G1c or α-L-Fuc-(1→3)-D-GlcNAc regioselectiveiy. This enzyme was more stable in the organic co-solvents than the α-fucosidase from Aspergillus niger, which was also proposed previously by us as an enzyme to produce fucosyl oligosaccharides.

Synthesis and Taste of Flavanone and Dihydrochalcone Glycosides Containing 3-O-α-L-Rhamnopyranosyl-D-glucopyranose or 4-O-α-L-Rhamnopyranosyl-D-glucopyranose in the Sugar Moiety

In order to clarify the relationships between the taste and chemical structures of naringin, neohesperidin and their dihydrochalcone (DHC) derivatives, the following glycosides were synthesized.Naringenin 7-O-(3-O-α-L-rhamnopyranosyl-β-D-glucopyranoside)

SYNTHESIS OF OLIGOSACCHARIDES OF L-FUCOSE CONTAINING α- AND β-ANOMERIC CONFIGURATIONS IN THE SAME MOLECULE

Some L-fucopyranosyl di-, tri-, and tetra-saccharides containing D-glucose and D-galactose have been synthesised.The use of mercuric cyanide and 2-O-benzyl-3,4-di-O-p-nitrobenzoyl-α-L-fucopyranosyl bromide gave α-L-fucopyranosides stereospecifically, but 2,3,4-tri-O-acetyl-α-L-fucopyranosyl bromide gave mixtures with selectivity favouring the β anomer.A tetrasaccharide was prepared containing both α- and β-L-fucopyranosyl residues in the same molecule, as part of a structure occuring in some extracellular bacterial polysaccharides.The configuration and positions of substitution of fucopyranosyl residues were clearly shown by 1H- and 13C-n.m.r. data.

SYNTHESIS OF 2-O-α, 3-O-α, 3-O-β, AND 4-O-α-L-RHAMNOPYRANOSYL-D-GALACTOSE

Condensation of benzyl 3-O-benzoyl-4,6-O-benzylidene-, benzyl 2-O-benzoyl-4,6-O-benzylidene- (2), and benzyl 2,3,6-tri-O-benzyl-β-D-galactopyranoside, separately, with tri-O-acetyl-α-L-rhamnopyranosyl bromide gave mainly α-linked disaccharide derivatives.An appreciable proportion of the β-linked disaccharide was also abtained from 2.An anomalous deacylation reaction was found for the (1-->3)-linked disaccharide, and the partially benzoylated products were isolated and characterised.The anomeric configuration of each disaccharide was established on the basis of JC-1,H-1 values.The chemical shifts for the galactose moieties of the α and β-L-rhamnopyranosyl derivatives differed in a systematic way.

SYNTHESE DE DISACCHARIDES A LIAISON α-D PAR CYCLOADDITION: 3-O-α-L-FUCOPYRANOSYL-D-GLUCOSE, 3-O-(2-ACETAMIDO-2-DESOXY-α-D-GALACTOPYRANOSYL)-D-GLUCOSE ET 3-O-α-D-TALOPYRANOSYL-D-GLUCOSE

Reduction of the primary alcohol group of 1,2:5,6-isopropylidene-3-O-(2,3,4-trideoxy-α-L-glycero-hex-2-enopyranosyl)-α-D-glucofuranose by p-toluenesulfonylation, substitution by iodine, and tributylstannane treatment, gave a 6'-deoxy derivative, which was

Building Units for Oligosaccharides, XXXIII. Synthesis of β-Glycosidically Linked Disaccharides of L-Rhamnose

The 2,3,4-tri-O-benzyl-α-L-rhamnopyranosyl bromide (4) is a reactive halogenose which in the presence of a silver silicate catalyst reacts with saccharides containing a reactive hydroxyl group to give a β-glycosidically linked disaccharide with good selec