(R)-4-(tert-Butyl-dimethyl-silanyloxy)-2,6,6-trimethyl-cyclohex-1-enecarboxylic acid methyl ester

(-)-tert-butyldimethylsilyl (1R,3S,6R)-6-ethynyl-1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-3-yl ether

(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