Selectin ligands: 2,3,4-tri-O-acetyl-6-O-pivaloyl-α/β-galactopyranosyl halide as novel glycosyl donor for the synthesis of 3-O-sialyl or 3-O-sulfo Lex and Lea type structures
Abstract
Stereoselective syntheses of 3-O-sialyl- and 3-O-sulfo- Lewisx and Lewisa type structures are accomplished trough the use of key glycosyl donors 8 and 9.