1S,4R,5S,8R,9R-12-noralliacol

(S)-1-(tert-Butyl-dimethyl-silanyloxy)-7-furan-3-yl-2,2,5-trimethyl-heptan-3-one

3-(5',7'-bis-tert-butyldimethylsiloxy-6',6'-dimethyl-3'-(S)-methyl-4'-heptenyl)furan