Increasing the inhibitory potency of l-arabino-imidazolo-[1,2]-piperidinose towards β-d-glucosidase and β-d-galactosidase
摘要:
The synthesis of some potent inhibitors of two retaining beta-glycosidases was achieved by introducing aglycon-mimics into the imidazole moiety Of L-arabino azasugar 1. The strongest inhibition was observed with the phenyl-ethyl substituent at C(2) of 1 against beta-D-galactosidase and beta-D-glucosidase, whereas the hydroxymethyl group at C(2) increased only slightly the inhibitory properties. (C) 2003 Published by Elsevier Science Ltd.
Synthesis of Substituted Imidazolo[1,2-a]piperidinoses and Their Evaluation as Glycosidase Inhibitors
作者:Estelle Dubost、Didier Le Nouën、Jacques Streith、Céline Tarnus、Théophile Tschamber
DOI:10.1002/ejoc.200500414
日期:2006.2
(from Escherichia coli) lead to the conclusion that the substitution of the C-2 position on the imidazole moiety with cyclohexylethyl or phenylethyl gives the best results (Ki = 2 and 4 nM, respectively, against a β-galactosidase) as compared with the non-substituted azasugar. The synthesis of the imidazolo[1,2-a]-D-xylo-piperidinose substituted with phenylethyl is also reported, as well as its inhibitory