(2R,4R,6R,8R)-8-allyl-2-(4-(3-(benzyloxy)phenyl)butyl)-11,11-dimethyl-1,7-dioxaspiro[5.5]undecan-4-yl (3R,4R)-4-(benzyloxy)-3-((4-methoxybenzyl)oxy)pentanoate

(2R,4R,6R,8R)-8-allyl-2-(4-(3-(benzyloxy)phenyl)butyl)-11,11-dimethyl-1,7-dioxaspiro[5.5]undecan-4-yl (3R,4R)-4-(benzyloxy)-3-hydroxypentanoate