methyl (2E,4E,6E)-7-((4R,5S)-5-(((4-methoxybenzyl)oxy)methyl)-2,2-dimethyl-1,3-dioxolan-4-yl)-6-methylhepta-2,4,6-trienoate

methyl (2E,4E,6E,8R,9S)-10-((4-methoxybenzyl)oxy)-6-methyl-8,9-bis((triethylsilyl)oxy)deca-2,4,6-trienoate