[Synthesis of 6-aminohexylglycosides of a polysaccharide from Streptococcus group A and its fragments].
Polycondensation of 4-O-benzoyl-1,2-O-(1-cyanoethylidene)-3-O-(3,4-di-O-benzoyl-2-O-tr ityl-alpha-L- rhamnopyranosyl)-beta-L-rhamnopyranose in the presence of 6-phthalimidohexyl-3,4-di-O-benzoyl-2-O-trityl-alpha-L- rhamnopyranoside affords, after deprotection, the polysaccharide built up of the repeating dissaccharide units----2) Rha (alpha 1----3) Rha (alpha 1----and containing 6-aminohexyl residue at the reducing end. This polysaccharide possesses the structure of the group A-variant streptococcal polysaccharide. Synthesis of 6-aminohexyl glycosides of 2- and 3-O-alpha-L-rhamnopyranosyl-alpha-L-rhamnopyranoses, which corresponds to the repeating units of the above polysaccharide, is described.
Tsvetkov
Iu E
IuE
Bukharov
A V
AV
Bakinovskiĭ
L V
LV
Kochetkov
N K
NK
D002240:Carbohydrate Sequence; D055598:Chemical Phenomena; D002621:Chemistry; D004187:Disaccharides; D011135:Polysaccharides, Bacterial / Q000138:chemical synthesis*; D013297:Streptococcus pyogenes
D004187:Disaccharides; D011135:Polysaccharides, Bacterial
Sintez 6-aminogeksilglikozidov polisakharida streptokokkov gruppy A-variant i ego fragmentov.