(E)-(S)-5-(tert-Butyl-diphenyl-silanyloxy)-8-oxo-oct-6-enoic acid methyl ester

(6E,8Z)-(S)-5-(tert-Butyl-diphenyl-silanyloxy)-11-hydroxy-undeca-6,8-dienoic acid methyl ester

(6E,8Z)-(S)-5-(tert-Butyl-diphenyl-silanyloxy)-11-(tetrahydro-pyran-2-yloxy)-undeca-6,8-dienoic acid methyl ester

(6E,8Z)-(S)-5-(tert-Butyl-diphenyl-silanyloxy)-11-(toluene-4-sulfonyloxy)-undeca-6,8-dienoic acid methyl ester

(6E,8Z,11Z)-(S)-5-(tert-Butyl-diphenyl-silanyloxy)-20-[5-((3aR,6S,6aS)-2-oxo-hexahydro-thieno[3,4-d]imidazol-6-yl)-pentanoylamino]-icosa-6,8,11-trienoic acid methyl ester