(3aS,6R,7R,7aR)-1-methyl-7-triethylsilyloxy-6-[(2-trifluoromethanesulfonyloxy)prop-2-enyl]hexahydropyrano[4,3-d]oxazol-2-one

(4R,5S)-4-[(E)-(S)-4-Benzyloxy-1-(tert-butyl-dimethyl-silanyloxy)-but-2-enyl]-5-benzyloxymethyl-oxazolidin-2-one

(3a'S,6'R,7'R,7a'S)-N-methoxy-N-methyl-2-[1'-methyl-2'-oxo-7'-(triethylsilyloxy)hexahydropyrano[4,3-d]oxazol-6'-yl]acetamide

(2R,4S)-hept-6-ene-2,4-diol

(4S,5S,1'S,E)-4-[4'-benzyloxy-1'-(tert-butyldimethylsilyloxy)but-2'-enyl]-5-(benzyloxy)methyl-3-methyloxazolidin-2-one