(E)-3-(1-Methyl-1H-imidazol-4-yl)-acrylic acid (Z)-(1S,2S,4R,8R,9S,12R)-8-isopropyl-12-methoxy-1,5-dimethyl-11-triisopropylsilanyloxymethyl-15-oxa-tricyclo[10.2.1.04,9]pentadeca-5,10,13-trien-2-yl ester

(E)-3-(1-Methyl-1H-imidazol-4-yl)-acrylic acid (Z)-(1S,2S,4R,8R,9S,12R)-11-hydroxymethyl-8-isopropyl-12-methoxy-1,5-dimethyl-15-oxa-tricyclo[10.2.1.04,9]pentadeca-5,10-dien-2-yl ester

(E)-3-(1-Methyl-1H-imidazol-4-yl)-acrylic acid (Z)-(1S,2S,4R,8R,9S,12R)-8-isopropyl-12-methoxy-1,5-dimethyl-11-triisopropylsilanyloxymethyl-15-oxa-tricyclo[10.2.1.04,9]pentadeca-5,10-dien-2-yl ester

Acetic acid (2R,3S,4S,5R)-4,5-bis-(tert-butyl-dimethyl-silanyloxy)-2-((Z)-(1R,4S,5R,9R,11S,12S)-1,11-dihydroxy-5-isopropyl-8,12-dimethyl-15-oxa-tricyclo[10.2.1.04,9]pentadeca-2,7,13-trien-2-ylmethoxy)-tetrahydro-pyran-3-yl ester