Role of the thiosugar ring in the inhibitory activity of salacinol, a potent natural α-glucosidase inhibitor.

ABSTRACT: Herein, ring-cleaved (24) and truncated (25) analogues of an azasugar, 1-deoxynojirimycin (23), exhibited inhibitory activity (K_i = 4-10 μM) equal to that of the parent compound (1, K_i = 14 μM). Based on this structure-activity relationship (SAR), four ring-cleaved (26a-26c and 27c) and three truncated (28a-28c) analogues of salacinol (1), a potent thiosugar-ring-containing α-glucosidase inhibitor, were synthesised. Bioassay results revealed that all the synthetics were inactive, indicating that the 5-membered thiosugar ring of 1 played an essential role in the potent activities of sulfonium-type inhibitors. The present findings are interesting and important in understanding the function of salacinol, considering that the observed inhibitory activity tre

SUBMITTER: Takashima K 

PROVIDER: S-EPMC10835759 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature