(+/-)-tetrahydrofuro[2,3-b]furan-2-one

(3R,5R)-(5-isopropenyl-2,3-dimethylcyclohex-1-enyloxy)trimethylsilane

(+/-)-2-methoxyhexahydrofuro[2,3-b]furan

(5R,6R,2'S,3a'R,6a'S)-6-(hexahydrofuro[2,3-b]furan-2'-yl)-5,6-dimethylcyclohex-2-enone

(2R,3R,5R)-2-[(2R,3aS,6aR)-2,3,3a,4,5,6a-hexahydrofluoro[2,3-b]furan-2-yl]-5-isopropenyl-2,3-dimethylcyclohexanone