Convenient preparation of α- and β-glycosides of novel isomeric 3-deoxy-hept-2-ulosaric acids diesters
作者:Jacek Mlynarski、Anna Banaszek
DOI:10.1016/s0040-4020(97)00675-3
日期:1997.7
d-lyxo-hept-2-ulosonic acids were obtained from the individual α and β anomers of the same methyl (methyl 3-deoxy-d-arabino-hept-2-ulopyranosid)-onate in a sequential epimerisation at C-4 and/or C-5 of their appropriate O-trifluoromethanesulfonic derivatives, using cesium acetate. Subsequent oxidation of the 7-OH group in these compounds lead to the new isomeric 3-deoxy-hept-2-ulosaric acids derivatives.