(Z)-2-Hydroxymethyl-3-[(1S,2R,6R)-6-isopropyl-3-methyl-2-((2S,3S)-3-methyl-2,3-bis-triethylsilanyloxy-pent-4-ynyl)-cyclohex-3-enyl]-propenal

(E)-2-Cyano-3-[(1S,2R,6R)-6-isopropyl-3-methyl-2-((2S,3S)-3-methyl-2,3-bis-triethylsilanyloxy-pent-4-ynyl)-cyclohex-3-enyl]-acrylic acid ethyl ester