Inhibitory activities of various cyclic sulfonium compounds including salac
inol against several glycosidases were studied and some compounds showed si
gnificant inhibition. The sulfonium ion structure was found to be essential
for the inhibitory activity. Specific inhibition of salacinol toward rice
alpha -glucosidase was ascribed to the tether arm. (C) 2001 Elsevier Scienc
e Ltd. Ail rights reserved.