190248-99-8Relevant articles and documents
Synthesis of a phosphorylated disaccharide fragment of the O-specific polysaccharide of Vibrio cholerae O139, functionalized for conjugation
Ruttens, Bart,Kovac, Pavol
, p. 320 - 332 (2007/10/03)
The title disaccharide, 2-(2-(2-[(2-ethoxy-3,4-dioxocyclobut-1-en-1-yl) amino]ethoxy}ethoxy}ethyl 2-O-(3,6-dideoxy-α-L-xylo-hexopyranosyl)-β- D-galactopyranoside cyclic 4,6-(potassium phosphate) (2), was synthesized from the two isomeric linker-equipped galactose acceptors 9 and 10, obtained by phosphorylation of 2-[2-(2-azidoethoxy)ethoxy]ethyl 3-O-benzyl-β-D- galactopyranoside (8). which were glycosylated with ethyl 2,4-di-O-benzyl-3,6- dideoxy-1-thio-β-L-xylo-hexopyranoside (12; Scheme). Mainly the fully protected α-(1 → 2)-linked products 13a and 14a were formed. Catalytic hydrogenolysis/hydrogenation effected global deprotection, thereby removing the chirality at the P-atom. and simultaneously converted the azido group in the linker to an amino group (→15). Final treatment with diethyl squarate (=3,4-diethoxycyclobut-3-ene-1,2-dione) gave target compound 2, amenable for conjugation to proteins.
A facile synthesis of armed and disarmed colitose thioglycosides
Ruttens, Bart,Kovac, Pavol
, p. 2505 - 2508 (2007/10/03)
Ethyl 2,4-di-O-acetyl-3,6-dideoxy-1-thio-β-L-xylohexopyranoside (10) and ethyl 2,4-di-O-benzyl-3,6-dideoxy-1-thio-β-L-xyl0-hexopyranoside (12) were synthesized in 60% and 55% overall yield, respectively. Starting from α-L-fucose, sequential peracetylation
Synthesis of colitose-containing oligosaccharide structures found in polysaccharides from Vibrio cholerae O139 synonym Bengal using thioglycoside donors
Oscarson, Stefan,Tedebark, Ulf,Turek, Dominika
, p. 159 - 164 (2007/10/03)
The syntheses of the two colitose-containing trisaccharides 8-methoxycarbonyloctyl (3,6-dideoxy- α-L-xylo-hexopyranosyl)-(1 → 2)-β-D-galactopyranosyl-(1 → 3)-2-acetamido-2-deoxy-β-D-glucopyranoside and 8-methoxycarbonyloctyl β-D-galactopyranosyl-(1 → 3)-[