3-[5-(tert-butyl-dimethyl-silanyloxy)-2,4,6-trimethyl-hexadec-2-enoyl]-4-isopropyl-oxazolidin-2-one

11-(tert-butyl-dimethyl-silanyloxy)-2,4,6,8,10,12-hexamethyl-5-oxo-docosa-2,6,8-trienoic acid

11-(tert-butyl-dimethyl-silanyloxy)-2,4,6,8,10,12-hexamethyl-5-oxo-docosa-2,6,8-trienoic acid 3-carboxy-2,3-bis-(4-methoxy-benzyloxy)-1-(4-methoxy-benzyloxymethyl)-propyl ester

11-(tert-butyl-dimethyl-silanyloxy)-2,4,6,8,10,12-hexamethyl-5-oxo-docosa-2,6,8-trienoic acid 4-(tert-butyl-dimethyl-silanyloxy)-2,3-bis-(4-methoxy-benzyloxy)-1-(4-methoxy-benzyloxymethyl)-butyl ester