Synthesis and glycosylating properties of ketopyranosyl donors
摘要:
The preparation of heptulopyranosyl donors 13-15, 28, 29 and 3-octulopyranosyl donors 34, 35, having a non-participating group at C-3 or C-4, respectively, is described. Glycosylations of various accepters with these donors gave exclusively cc-linked ketosides. On the other hand, condensation of 3-O-benzoyl heptulopyranosyl donor 19 with art acceptor furnished an anomeric mixture of ketodisaccharides.
Synthesis and glycosylating properties of ketopyranosyl donors
摘要:
The preparation of heptulopyranosyl donors 13-15, 28, 29 and 3-octulopyranosyl donors 34, 35, having a non-participating group at C-3 or C-4, respectively, is described. Glycosylations of various accepters with these donors gave exclusively cc-linked ketosides. On the other hand, condensation of 3-O-benzoyl heptulopyranosyl donor 19 with art acceptor furnished an anomeric mixture of ketodisaccharides.