A novel synthetic application of glucose isomerase: Quantitative conversion of D-glucose and L-idofuranose, derivatives modified at position five into the corresponding D-fructo- and L-sorbopyranoses.
摘要:
Glucose isomerase (E.C. 5.3.1.5) quantitatively converts a wide range of D-glucose as well as L-idose derivatives modified at position five, such as 5-O-benzyl-, 5-azido-5-deoxy-, 5-deoxy-5-fluoro analogues, into the corresponding 2-ketosugars. The reaction works on a preparative scale with isolated yields ranging between 50 and 80%. Products obtained are a new deoxyfluoro sugar, potential non-nutrative sweeteners, as well as intermediates for the synthesis of glycosidase inhibitors and highly functionalized C-glycosides.