Lack of glycosidase inhibition by, and isolation from xanthocercis zambesiaca (leguminosae) of, 4-O-(β-D-glucopyranosyl)-fagomine [1,2,5-trideoxy-4-O-(β-D-glucopyranosyl)-1,5-imino-D- arabino-hexitol], a novel glucoside of a polyhydroxylated piperidine alkaloid

Tetrahedron Letters
1985.0

Abstract

A COSY spectrum has been used to determine the position of inter-residue linkage in 4-O-(β-D-glucopyranosyl) fagomine (1) an example of a new class of glycosides of polyhydroxylated piperidine alkaloids isolated from seed of the legume Xanthocercis zambesiaca. (Bak.) Dunn. Unlike a number of polyhydroxylated piperidines, neither the glucoside (1) nor free fagomine [1,2,5-trideoxy-1,5-imino-D-arabinohexitol] (3) showed any inhibitory activity towards glycosidase enzymes from a variety of sources. © 1985.

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