((S)-5-{(2R,6R)-6-[4-(4-Methoxy-benzyloxy)-but-2-ynyl]-3,6-dihydro-2H-pyran-2-yl}-4-methyl-2-methylene-pentyl)-trimethyl-silane

(1R,3S,7S,8R,10S,12S,18R)-7-(tert-Butyl-dimethyl-silanyloxy)-12-[(E)-(S)-1-(tert-butyl-dimethyl-silanyloxy)-3-((S)-4-methyl-3,6-dihydro-2H-pyran-2-yl)-allyl]-3-methyl-5-methylene-9,13,22-trioxa-tricyclo[16.3.1.08,10]docos-19-en-15-yn-14-one

3-(tert-butyl-dimethyl-silanyloxy)-1-[3-(1-(tert-butyl-dimethyl-silanyloxy)-3-{3-[6-(4-hydroxy-but-2-ynyl)-3,6-dihydro-2H-pyran-2-yl]-2-methyl-propyl}-but-3-enyl)-oxiranyl]-5-(4-methyl-3,6-dihydro-2H-pyran-2-yl)-pent-4-en-2-ol

4-{6-[4-(2-(tert-butyl-dimethyl-silanyloxy)-2-{3-[3-(tert-butyl-dimethyl-silanyloxy)-2-hydroxy-5-(4-methyl-3,6-dihydro-2H-pyran-2-yl)-pent-4-enyl]-oxiranyl}-ethyl)-2-methyl-pent-4-enyl]-5,6-dihydro-2H-pyran-2-yl}-but-2-ynoic acid

1-{3-[3-(tert-butyl-dimethyl-silanyloxy)-2-(4-methoxy-benzyloxy)-5-(4-methyl-3,6-dihydro-2H-pyran-2-yl)-pent-4-enyl]-oxiranyl}-3-(3-{6-[4-(4-methoxy-benzyloxy)-but-2-ynyl]-3,6-dihydro-2H-pyran-2-yl}-2-methyl-propyl)-but-3-en-1-ol