4-(1-benzyloxy-allyl)-5-methoxy-2,2-dimethyl-[1,3]dioxane

5-benzyloxy-3-methoxy-4-oxo-hept-6-enoic acid methyl ester

5-benzyloxy-4-hydroxy-3-methoxy-hept-6-enoic acid methyl ester

methyl (3R,4S,5S)-5-benzyloxy-3-methoxy-4-(4-methoxybenzyloxy)hept-6-enoate

(S)-hept-6-en-2-yl (3R,5S)-5-benzyloxy-3-methoxy-4-oxohept-6-enoate