Jb. Behr et al., SYNTHESIS OF (DIFLUOROMETHYL)PHOSPHONATE AZASUGARS DESIGNED AS INHIBITORS FOR GLYCOSYL TRANSFERASES, Journal of the Chemical Society. Perkin transactions. I, (11), 1997, pp. 1597-1599
Polyhydroxylated pyrrolidines (azasugars) bearing a (difluoromethylene
)phosphonate group at the pseudoanomeric position are prepared by nucl
eophilic opening of arabino-, ribo- and xylo-furanosylamine with dieth
yl (lithiodifluoromethyl)phosphonate followed by cyclisation of the am
ino phosphonate products obtained.