1196690-73-9

Upstream product

• 442639-13-6 4-methoxyphenyl 6-O-trityl-β-D-galactopyranoside 
• 3150-20-7 4-methoxyphenyl β-D-galactopyranoside 
• 1374633-07-4 p-methoxyphenyl 2-O-benzyl-3,4-O-isopropylidene-6-O-trityl-β-d-galactopyranoside 
• 1374633-06-3 p-methoxyphenyl 3,4-O-isopropylidene-6-O-trityl-β-D-galactopyranoside 

Relevant academic research and scientific papers

Synthesis of tetra- and hexasaccharide fragments corresponding to the O-antigenic polysaccharide of Klebsiella pneumoniae

The preparation of linear tetra- (1) and hexasaccharides (2), containing the repeating unit [→3)-β-Galf-(1→3)-α-Galp-(1→] present in the O-polysaccharide of the lipopolysaccharide of Klebsiella pneumoniae is described. The key step in their synthesis is the α-selective galactopyranosylation of 3-OH di- and tetrasaccharide acceptors (20 and 22) with a disaccharide trichloroacetimidate donor 19 in the presence of trimethylsilyl triflate in a diethyl ether-CH2Cl 2 mixture as solvent.