3,9-bis(tert-butyl-dimethyl-silanyloxy)-2,6-dimethyl-nona-4,6-dienal

1,1-dibromo-4,10-bis(tert-butyl-dimethyl-silanyloxy)-3,7-dimethyl-deca-1,5,7-triene

6-bromo-9,15-bis(tert-butyl-dimethyl-silanyloxy)-2,4,8,12-tetramethyl-pentadeca-2,4,6,10,12-pentaenoic acid 2-trimethylsilanyl-ethyl ester