Synthesis and conformational behavior of the difluoromethylene linked C-glycoside analog of beta-galactopyranosyl-(1<-->1)-alpha-mannopyranoside.

ABSTRACT: C-Glycosides in which the pseudoglycosidic substituent is a methylene group have been advertised as hydrolytically stable mimetics of their parent O-glycosides. While this substitution assures greater stability, the lower polarity and increased conformational flexibility in the intersaccharide linker brought about by this change may compromise biological mimicry. In this regard, C-glycosides, in which the pseudoanomeric methylene is replaced with a difluoromethylene group, are interesting because the CF2 group is more of an isopolar replacement for oxygen than CH2. In addition, the CF2 residue is expected to instill conformational bias into the intersaccharide torsions. Herein is described the synthesis and conformational behavior of the difluoromethylene linked C-glycoside of beta-D-galac

SUBMITTER: Denton RW 

PROVIDER: S-EPMC2084073 | biostudies-literature | 2007 Sep

REPOSITORIES: biostudies-literature