(3aR,6R,6aS)-ethyl 6-hydroxy-2,2-dimethyl-6,6a-dihydro-3aH-cyclopenta[1,3]dioxole-4-carboxylate

(E)-ethyl (4R,5R)-4,5-dihydroxy-6-(4-methoxybenzyloxy)hex-2-enoate

(E)-ethyl 3-[(4R,5R)-5-(4-methoxybenzyloxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl]prop-2-enoate

(E)-ethyl (4R,5R)-4,5-bis(tert-butyldimethylsiloxy)-6-hydroxyhex-2-enoate

(E)-ethyl (4R,5R)-4,5-bis(tert-butyldimethylsiloxy)-6-(4-methoxybenzyloxy)hex-2-enoate