(3R,5R,6R)-5-t-butoxycarbonylamino-3,6-dimethyltetrahydropyran-2-thione

(2R,4aR,8R,8aS)-8-Hydroxy-2-(4-methoxy-phenyl)-tetrahydro-pyrano[3,2-d][1,3]dioxin-6-one

t-butyl (4R,5R)-4-(3'-ethoxy-2'-methyl-3'-oxopropyl)-2,2,5-trimethyl-1,3-oxazolidine-3-carboxylate

(2S,3S,6S)-3-(tert-Butyl-dimethyl-silanyloxy)-6-methoxy-6-methyl-4-methylene-tetrahydro-pyran-2-carbaldehyde

(Z)-(S)-4-(tert-Butyl-diphenyl-silanyloxy)-pent-2-enoic acid {(2R,3R,5S,6S)-2,5-dimethyl-6-[(E)-3-methyl-4-(toluene-4-sulfonyl)-but-2-enyl]-tetrahydro-pyran-3-yl}-amide