Beta-glycosides of hydroxyproline via an umpolung approach.
Reaction of 1,2-O-dibutylstannylene-3,4-6-tri-O-benzyl-beta-D-mannopyranose with Nalpha-fluorenylmethoxycarbonyl-cis-4-trifluoromethanesulfonyloxyproline allyl ester led to formation of a beta-mannoside of trans-4-hydroxyproline. Subsequent manipulation of the C2 hydroxy group gave rise to beta-D-Glc and beta-D-GlcNAc derivatives.
Shaffer
Karl J
KJ
Institute of Fundamental Sciences, Massey University, Private Bag 11-222, Palmerston North, New Zealand.
Taylor
Carol M
CM