(E)-4-{(1R,2S,4S)-2-[(E)-(S)-6-(tert-Butyl-dimethyl-silanyloxy)-hept-1-enyl]-4-methoxymethoxy-cyclopentyl}-4-(tetrahydro-pyran-2-yloxy)-but-2-enoic acid ethyl ester

(+)-epibrefeldin A