(Z)-2-[(2R,3S,4S,5R)-4,5-Bis-(tert-butyl-dimethyl-silanyloxy)-3-(4-methoxy-benzyloxy)-tetrahydro-pyran-2-yloxymethyl]-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)-(1R,4S,5R,9R,11S,12S)-5-Isopropyl-1-methoxy-8,12-dimethyl-11-[(E)-3-(1-methyl-1H-imidazol-4-yl)-acryloyloxy]-15-oxa-tricyclo[10.2.1.04,9]pentadeca-2,7,13-triene-2-carboxylic acid