4-[(2S,3S)-3-((1E,3E,5Z,7E)-(S)-9-Hydroxy-tetradeca-1,3,5,7-tetraenyl)-oxiranyl]-butyric acid ethyl ester

4-{(2S,3S)-3-[(1E,3E,5Z,7E)-(S)-9-(tert-Butyl-diphenyl-silanyloxy)-tetradeca-1,3,5,7-tetraenyl]-oxiranyl}-butyric acid ethyl ester