S. Ogawa et al., Pseudosugars, 41 - Synthesis and glycosidase inhibitory activity of 5a-carba-alpha-DL-fucopyranosylamine and -galactopyranosylamine, EUR J ORG C, (11), 2000, pp. 2089-2093
5a-Carba-alpha-DL-fucopyranosylamine (DL-5) and -galactopyranosylamine (DL-
4) have been synthesized in a conventional manner from 2,3,4,6-tetra-O-acet
yl-5a-carba-beta-DL-glucpyranosyl bromide (6), Only compound DL-5 has been
shown to be a strong inhibitor (K-i = 2.3 X 10(-7) m) of alpha-fucosidase (
bovine kidney). They did not exhibit any inhibitory activity towards five g
lycoside hydrolases, namely alpha- and beta-glucosidases and alpha- and bet
a-galactosidases.