(2E,6E,8E)-(4R,5S,10S,11S,12S)-5-Hydroxy-11-(4-methoxy-benzyloxy)-2,4,6,8,10,12-hexamethyl-docosa-2,6,8-trienoic acid ethyl ester

(4E,6E)-(2S,3S,8S,9S,10S)-9-(4-Methoxy-benzyloxy)-2,4,6,8,10-pentamethyl-3-triethylsilanyloxy-icosa-4,6-dienethioic acid S-ethyl ester

(2E,6E,8E)-(4R,5S,10S,11S,12S)-11-(4-Methoxy-benzyloxy)-2,4,6,8,10,12-hexamethyl-5-triethylsilanyloxy-docosa-2,6,8-trienoic acid ethyl ester