Facile synthesis of 6a-carba-β-D-fructopyranose through an RCM approach

A new synthetic approach toward 6a-carba-beta-D-fructopyranose, a non-nutritive sweetener related to topiramate, is described. This scheme uses 2-C-hydroxymethyl-L-erythrose acetonide as starting material and efficiently delivers the target compound applying an RCM protocol for the construction of the carbocycle ring. (c) 2008 Elsevier Ltd. All rights reserved.