ARTIFICIAL CARBOHYDRATE ANTIGENS: A BLOCK SYNTHESIS OF A LINEAR, TETRASACCHARIDE REPEATING-UNIT OF THE Shigella flexneri VARIANT Y POLYSACCHARIDE

Article abstract of DOI:10.1016/0008-6215(83)88465-1

Glycosylation of methyl 2,4-di-O-benzoyl-α-L-rhamnopyranoside with 2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl bromide gave methyl 2,4-di-O-benzoyl-3-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-α-L-rhamnopyranoside (4) in 93percent yield.Conversion of 4 into th