(3Z,5S,6S,7S,8Z,11S,12R,13R,14S,15S,16Z)-6,12-bis((tert-butyldimethylsilyl)oxy)-14-((4-methoxybenzyl)oxy)-5,7,9,11,13,15-hexamethylnonadeca-3,8,16,18-tetraen-2-one

(2R,3R,4S,Z)-3-((tert-butyldimethylsilyl)oxy)-7-((4-methoxybenzyl)oxy)-2,4-dimethylhept-5-enal