(4S,1'R,3'R)-4-[3'-hydroxy-1'-(triethylsilanyloxy)-hex-5'-enyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester

(2'S,4'R,6'R)-[6'-{2-(4-methoxybenzyloxymethyl)-oxazol-4-yl}-4'-(triisopropylsilanyloxy)-tetrahydropyran-2'-yl]-acetaldehyde

(2'R,4'R,6'R)-4-(6'-allyl-4'-(triisopropylsilanyloxy)-tetrahydropyran-2'-yl)-2-(4-methoxybenzyloxymethyl)-oxazole

(4S,1'R,3'R)-4-[6'-ethoxycarbonyl-1'-hydroxy-3'-(triisopropylsilanyloxy)-hex-(5'E)-enyl]-2,2-dimethyloxazolidine-3-carboxylic acid tert-butyl ester

(4S,2'R,4'R,6'S)-4-[6'-ethoxycarbonylmethyl-4'-(triisopropylsilanyloxy)-tetrahydropyran-2'-yl]-2,2-dimethyloxazolidine-3-carboxylic acid tert-butyl ester