(+)-(2E)-3-methyl-5-[(6R)-4-(tert-butyldimethylsilyloxy)-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]pent-2-en-4yn-1-ol

(2E,4E)-5-[(1'S,2'R,4'S)-4'-tert-butyldimethylsiloxy-1',2'-epoxy-2',6',6'-trimethylcyclohex-1'-yl]-3-ethoxycarbonylpenta-2,4-dienal

(3Z,5E)-6-[(1'S,2'R,4'S)-4'-tert-butyldimethylsiloxy-1',2'-epoxy-2',6',6'-trimethylcyclohex-1'-yl]-4-ethoxycarbonylhexa-3,5-dien-1-yne

(6S,7aR)-6-(tert-Butyl-dimethyl-silanyloxy)-4,4,7a-trimethyl-2,4,5,6,7,7a-hexahydro-benzofuran-2-ol

(6R,7aR)-6-hydroxy-4,4,7a-trimethyl-5,6,7,7a-tetrahydrobenzofuran-2(4H)-one