(2S,3R)-3-(tert-butyl-dimethyl-silanyloxy)-2-methyl-4-{2-[(2S,3S,6R)-3-methyl-6-((E)-2-oxopent-3-enyl)tetrahydro-pyran-2-yl]-acetylamino}-butyric acid triisopropylsilyl ester

{(E)-(1S,4S)-6-[(2S,6S,8R,9S)-8-(3-benzyloxy-propyl)-9-methyl-1,7-dioxa-spiro[5.5]undec-2-yl]-1,2,4-trimethyl-hex-2-enyloxy}-tert-butyl-dimethyl-silane

[(2E,9Z)-(1S,4S,7R)-10-[(2R,5S,6R)-6-(3-benzyloxypropyl)-2-methoxy-5-methyl-tetrahydro-pyran-2-yl]-7-(4-methoxybenzyloxy)-1,2,4-trimethyl-deca-2,9-dienyloxy](tert-butyl)(dimethyl)silane