(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

((4aS,6R,7S,7aR,11S,11aR)-7-(2S,3aR,6aS)-Hexahydro-furo[2,3-b]furan-2-yl-3,3,6,7-tetramethyl-octahydro-naphtho[1,8a-d][1,3]dioxin-11-yl)-methanol

(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

lupulin C

(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