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

(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

(2S,3S,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-ol

(2R,3S,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-ol

(2R,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