Patent ID: 7019131

Claim:
A fully protected mannoside possessing the following structure: wherein P 1 and P 2 may make up a 1,3-diol protecting group possessing the following structure: or P 1 and P 2 may be independently selected from the following group of radicals: -TBS, TBDPS, -Bn, -PMB, -Bz, ClAc-, -Lev; and wherein P 3 and P 4 may make up a 1,2-diol protecting group having the following structure: or alternatively, P 3 and P 4 are independently selected from the group of radicals consisting of -TBS, -Bn, -PMB, -Bz, and -Lev; wherein -PMB is para-methoxybenzyl, -Lev is levulinyl, and -STol is p-methylphenylthio; -TBS is tert-butyldimethylsilyl; and -TBDPS is tert-butyl-diphenylsilyl.