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

(6R,7R)-7-[(2R,3aS,6aR)-hexahydrofuro[2,3-b]furan-2-yl]-6,7-dimethyl-4,5,6,7-tetrahydrobenzo[d]isoxazole

(3R,4S,4aS,8R,8aS,2'S,3a'R,6a'S)-8a-(tert-butyldimethylsilanyloxymethyl)-4-(hexahydrofuro[2,3-b]furan-2'-yl)-3,4-dimethyloctahydro-8-vinylnaphthalen-1-one

(1S,3R,4S,4aS,8R,8aS,2'S,3a'R,6a'S)-acetic acid 1-acetoxydecahydro-4-(hexahydrofuro[2,3-b]furan-2'-yl)-3,4-dimethyl-8-vinylnaphthalen-8a-ylmethyl ester

(1S,3R,4S,4aS,8S,8aS,2'S,3a'R,6a'S)-acetic acid 1-acetoxy-8-bromo-8-formyldecahydro-4-(hexahydrofuro[2,3-b]furan-2'-yl)-3,4-dimethylnaphthalen-8a-ylmethyl ester

(2R,3R)-2-[(2R,3aS,6aR)-hexahydrofuro[b]furan-2-yl]-2,3-dimethylcyclohexanone

(4aS,6R,7S,7aR,11aR,2'S,3a'R,6a'S)-7-(hexahydrofuro[2,3-b]furan-2'-yl)-3,3,6,7-tetramethyl-11-methyleneoctahydronaphtho[1,8a-d][1,3]dioxine

(3R,4S,5R,2'S,3a'R,6a'S)-4-(hexahydrofuro[2,3-b]furan-2'-yl)-4,5-dimethyl-3-(pent-4-enyl)cyclohexanone

(4aS,6R,7S,7aR,11R,2'S,3a'R,6a'S)-7-(hexahydrofuro[2,3-b]furan-2'-yl)-3,3,6,7-tetramethyloctahydro-11-vinylnaphtho[1,8a-d][1,3]dioxine

(2R,3R)-2-[(2R,3aS,6aR)-hexahydrofuro[b]furan-2-yl]-2,3-dimethyl-5-cyclohexenone

methyl 2-(2-oxooxolan-3-yl)acetate

(4aS,6R,7S,7aR,11S,2'S,3a'R,6a'S)-7-(hexahydrofuro[2,3-b]furan-2'-yl)-3,3,6,7-tetramethyloctahydronaphtho[1,8a-d][1,3]dioxine-11-carbaldehyde

(1S,3R,4R,6S)-[(2R,3aS,6aR)-hexahydrofuro[2,3-b]furan-2-yl]-6-isopropenyl-3,4-dimethyl-2-oxo-1-(3-oxo-butyl)-cyclohexanecarbonitrile

(2R,3R)-2-[(2R,3aS,6aR)-hexahydrofuro[b]furan-2-yl]-6-hydroxymethylene-2,3-dimethylcyclohexanone

(1S,3R,4R)-3-[(2R,3aS,6aR)-hexahydrofuro[2,3-b]furan-2-yl]-3,4-dimethyl-2-oxo-cyclohexanecarbonitrile