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ID: ALA1932983

Journal: Bioorg Med Chem

Title: Towards a stable noeuromycin analog with a D-manno configuration: synthesis and glycosidase inhibition of D-manno-like tri- and tetrahydroxylated azepanes.

Authors: Deschamp J, Mondon M, Nakagawa S, Kato A, Alonzi DS, Butters TD, Zhang Y, Sollogoub M, Blériot Y.

Abstract: Noeuromycin is a highly potent albeit unstable glycosidase inhibitor due to its hemiaminal function. While stable D-gluco-like analogs have been reported, no data are available for D-manno-like structures. A series of tri- and tetrahydroxylated seven-membered iminosugars displaying either a D-manno-or a L-gulo-like configuration, were synthesized from methyl α-D-mannopyranoside using a reductive amination-mediated ring expansion as the key step. Screening towards a range of commercial glycosidases demonstrated their potency as competitive glycosidase inhibitors while cellular assay showed selective albeit weak glycoprotein processing mannosidase inactivation.

CiteXplore: 20971647

DOI: 10.1016/j.bmc.2010.09.053