(2S,3R,5R,6R)-3-tert-butyldimethylsilyloxymethyl-5,6-dimethoxy-5,6-dimethyl-2-dodecane-[1,4]-dioxane

(2S,3R,5R,6R)-5,6-dimethoxy-5,6-dimethyl-2-dodecane-3-(2',2'-gem-dibromo)ethenyl-[1,4]-dioxane

(E)-(2'S,3R,4R,5S)-3-(5'-iodo-2'-tert-butyldimethylsilyloxy)pent-4'-enyl-N-phenyl-N-trifluoroacetamido-2,3,4,5-tetrahydro-5-methylfuran-2-one

(2S,5S)-2-(tert-butyldiphenylsilyloxymethyl)-5-(1-benzyloxyprop-2-ynyl)tetrahydrofuran

(2'S,3R,4R,5S)-3-(4'-benzyloxy-2'-tert-butyldimethylsilyloxy)butyl-4-N-phenylamino-2,3,4,5-tetrahydro-5-methylfuran-2-one