Abstract:
A method that can be used to make a precursor of L-fucose from D-glucose that includes the steps of a) making a compound of formula (1) from D-glucose, formula (1) wherein R1 is acyloxy, and Q is a group (a), (b), (c) or (d), formula (a), (b), (c) or (d) or wherein R1 is OH, and Q is a group (e), (f) or (g); formula (e), (f) or (g) wherein R2 is acyloxy and R3 is a sulphonyl leaving group; and b) producing 6-deoxy-L-talose from the compound of formula (1) formed in step a), wherein the moiety is a highly lipophilic protecting group; compounds according to formula (1), and use of a compound according to formula (1) are provided.