Patent ID: 8114970

Claim:
A monosaccharide of General Formula X in which the ring is of the D-Gluco stereochemistry; wherein X 1 is selected from the group consisting of alpha or beta thiomethyl or thiocresyl or trichloroacetimidoyl or t-butyldiphenylsilyloxy, alpha methoxy; R H1 is selected from the group consisting of benzyl or substituted benzyl protecting group or R H1 and R A can combine together to form a cyclic carbamate; R A is selected from the group consisting of an azido function, an NH-Dde, NH-DTPM; or R H1 and R A can combine together to form a cyclic carbamate; R S1 is selected from the group consisting of 4-methoxyphenyl; 4-methoxybenzyl, benzoyl, and 4-chlorobenzoyl; R L is selected from a hydrogen atom or a levulinoyl.