(2R,3S,4S)-2-(tert-Butyl-dimethyl-silanyloxy)-3-hydroxy-4-methyl-1-[(2S,5R)-2-methyl-5-((E)-(S)-1,1,4-trimethyl-hexa-2,5-dienyl)-tetrahydro-furan-2-yl]-hept-6-en-1-one

(1S,2R,3S,4S)-4-Methyl-1-[(2S,5R)-2-methyl-5-((E)-(S)-1,1,4-trimethyl-hexa-2,5-dienyl)-tetrahydro-furan-2-yl]-1,3-bis-triethylsilanyloxy-hept-6-en-2-ol