Methods for the synthesis of polyhydroxylated piperidines by diastereoselective dihydroxylation: exploitation in the two-directional synthesis of aza-C-linked disaccharide derivatives.

ABSTRACT:

Background

Many polyhydroxylated piperidines are inhibitors of the oligosaccharide processing enzymes, glycosidases and glycosyltransferases. Aza-C-linked disaccharide mimetics are compounds in which saturated polyhydroxylated nitrogen and oxygen heterocycles are linked by an all-carbon tether. The saturated oxygen heterocycle has the potential to mimic the departing sugar in a glycosidase-catalysed reaction and aza-C-linked disaccharide mimetics may, therefore, be more potent inhibitors of these enzymes.

Results

The scope, limitations and diastereoselectivity of the dihydroxylation of stereoisomeric 2-butyl-1-(toluene-4-sulfonyl)-1,2,3,6-tetrahydro-pyridin-3-ols is discussed. In the absence of a 6-substituent on the piperidine ring, the Upjohn (cat. OsO4, NMO, acetone-water

SUBMITTER: Kennedy A 

PROVIDER: S-EPMC1399450 | biostudies-literature | 2005 Aug

REPOSITORIES: biostudies-literature