2,3-Di-O-benzyl-4-O-(tert-butyldimethylsilyl)-D-erythrose

(2R,3R)-2,3-bis(benzyloxy)-4-hydroxybutanoic acid 1,4-lactone

(+)-(2R,3S,4R)-1-allyl-3,4-di(benzyloxy)-2-[(R)-1-(methoxymethoxy)allyl]pyrrolidine

(-)-(RS,2S,3R,4R,5R)-N-[1-(tert-butyldimethylsilyloxy)-2,3-dibenzyloxy-5-(methoxymethoxy)hept-6-en-4-yl]-2-methylpropane-2-sulfinamide