(2'R,3'S)-4-[3'-(tert-butyldimethylsiloxy)tetrahydropyran-2'-yl]-2-buten-1-ol

(2R,3S,2'S)-3-(tert-butyldimethylsiloxy)-2-(2'-methoxy-methoxy-but-3'-enyl)-tetrahydropyran

Acetic acid (2S,3R)-2-[(Z)-2-((4aR,8aS)-2-methoxy-3-oxo-octahydro-pyrano[3,2-b]pyran-2-yl)-vinyl]-tetrahydro-pyran-3-yl ester

(3S,4aR,8aS)-3-Benzyloxy-hexahydro-pyrano[3,2-b]pyran-2-one

(2S,4aR,8aS,4'aR,8'aS)-spiro(2,4a,6,7,8,8a)-hexahydropyrano[3,2-b]pyrane-2,2'-octahydropyrano[3,2-b]pyran-3'-one

(3S,4aR,8aS)-2-(((2R,3S)-3-((tert-butyldimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)ethynyl)-3-(methoxymethoxy)octahydropyrano[3,2-b]pyran-2-ol

(2R,3S,2'R,2''S,4''aR,8''aS)-2-[2'-(2'',4''a,6'',7'',8'',8''a)-(hexahydropyrano[3,2-b]pyran-2''yl)-2'-hydroxyethyl]tetrahydropyran-3-ol