De novo synthesis and lectin binding studies of unsaturated carba-pyranoses
作者:Timo Leermann、Oliver Block、Michael A. L. Podeschwa、Uwe Pfüller、Hans-Josef Altenbach
DOI:10.1039/c003597a
日期:——
Starting from branched para-benzoquinones a practical and highly flexible route is described for the preparation of unsaturated carbapyranoses. The potential of the synthesized galactose analogues to act as competitive inhibitors in lectin-carbohydrate interactions is investigated by means of Surface Plasmon Resonance (SPR) Spectroscopy.
Synthesis of carbocyclic analogs of guanosine 5'-(.beta.-L-fucopyranosyl diphosphate) (GDP-fucose) as potential inhibitors of fucosyltransferases.
作者:Shaopei Cai、Mark R. Stroud、Senitiroh Hakomori、Tatsushi Toyokuni
DOI:10.1021/jo00051a004
日期:1992.12
Two carbocyclic analogues of GDP-fucose consisting of 5a-carba-beta-L-fucopyranose and its unsaturated counterpart have been synthesized as potential inhibitors of fucosyltransferases through the intramolecular Emmons-Horner-Wadsworth olefination of the 2,6-dioxo-phosphonate derivative, readily available from L-fucose, followed by chemo- and stereoselective reductions of the alpha,beta-unsaturated inosose intermediate, which are the critical steps.