(5R,6R)-6-[(1S,2R)-1-Benzyloxy-2-(tert-butyl-dimethyl-silanyloxy)-2-phenyl-ethyl]-5-hydroxy-5,6-dihydro-pyran-2-one

(2R,3R,3aR,7aS)-3-(benzyloxy)-2-phenyl-3,3a-dihydro-2H-furo[3,2-b]pyran-5(7aH)-one

(2R,3R,3aS,6S,7R,7aS)-3-Benzyloxy-6,7-dihydroxy-2-phenyl-hexahydro-furo[3,2-b]pyran-5-one

Toluene-4-sulfonic acid (2S,3R)-2-[(1S,2R)-1-benzyloxy-2-(tert-butyl-dimethyl-silanyloxy)-2-phenyl-ethyl]-6-oxo-3,6-dihydro-2H-pyran-3-yl ester

(2R,3R,3aS,7R,7aS)-3-(benzyloxy)-7-hydroxy-2-phenyltetrahydro-2H-furo[3,2-b]pyran-5(6H)-one