(7R)-7-[(2S)-hex-4-yn-2-yl]-2,2,3,3,10-pentamethyl-9,9-bis(propan-2-yl)-4,8-dioxa-3,9-disilaundecane

(2S,3R,4R,Z)-3-((tert-butyldimethylsilyl)oxy)-8-((4-methoxybenzyl)oxy)-2,4-dimethyloct-6-enal