α-1-C-Alkyl-1-deoxynojirimycin derivatives as potent and selective inhibitors of intestinal isomaltase: remarkable effect of the alkyl chain length on glycosidase inhibitory profile
作者:Guillaume Godin、Philippe Compain、Olivier R. Martin、Kyoko Ikeda、Liang Yu、Naoki Asano
DOI:10.1016/j.bmcl.2004.09.086
日期:2004.12
A series of alpha- and beta-1-C-alkyl-1-deoxynojirimycin derivatives was prepared and evaluated as glycosidase inhibitors. Biological assays showed a marked dependence of the selectivity and potency of the inhibitors upon the position of the alkyl chain (alpha-1-C-, beta-1-C- or N-alkyl derivatives). In addition, the efficiency of alpha-1-C-alkyl-1-deoxynojirimycin derivatives as intestinal isomaltase inhibitors increases with the length of the alkyl chain. The strongest inhibition was found for alpha-1-C-nonyl-1-deoxynojirimycin with an IC50 = 3.5 nM (25x more potent inhibitor than the shorter chain homologue carrying a C-8 chain). These results demonstrate that subtle changes in the aglycon fragment may result in remarkable enzyme specificity. (C) 2004 Elsevier Ltd. All rights reserved.