allyl (4R,5S,E)-5-(((4R,5S,E)-5-hydroxy-4-(methoxymethoxy)hex-2-enoyl)oxy)-4-(methoxymethoxy)hex-2-enoate

allyl (4R,5S,E)-5-(((4R,5S,E)-5-(((S)-3-((tert-butyldimethylsilyl)oxy)butanoyl)oxy)-4-(methoxymethoxy)hex-2-enoyl)oxy)-4-(methoxymethoxy)hex-2-enoate

carbon monoxide

(3S)-3-<(p-methoxybenzyl)-oxy>-butanoic acid