(2R,3S)-2-(2',2'-dibromovinyl)-3-(tert-butyldimethylsiloxy)-tetrahydropyran

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

(2S,4aR,4a'S,8aS,8a'R)-4,4a,4a',6,7,7',8,8a,8',8a'-decahydro-3H,6'H-2,2'-spirobi[pyrano[3,2-b]pyran]-3-one

(4aS,6S,9aR)-6-(3-Benzyloxy-propyl)-3,4,4a,9a-tetrahydro-2H-1,5-dioxa-benzocyclohepten-7-one

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

acetic acid 2-[2-(3-hydroxy-2-methoxytetrahydropyran-2-yl)vinyl]tetrahydropyran-3-yl ester

(Z)-3-[(2R,3S)-3-(tert-Butyl-dimethyl-silanyloxy)-tetrahydro-pyran-2-yl]-prop-2-en-1-ol

acetic acid 2-[2-(2-methoxy-3-oxotetrahydropyran-2-yl)vinyl]tetrahydropyran-3-yl ester

(4aS,9aR)-6-(3-Benzyloxy-propyl)-3,4,4a,6,7,9a-hexahydro-2H-1,5-dioxa-benzocyclohepten-7-ol

(4aR,5aS,6aR,10aS,11aR,13aS)-5a,11a-Dimethoxy-3,4,4a,5a,6,6a,8,9,10,10a,11a,13a-dodecahydro-2H-1,5,7,11-tetraoxa-benzo[4,5]cyclohepta[1,2-b]naphthalene