(2R,3S)-2-Hydroxy-3-methyl-pent-4-ynoic acid methyl ester

t-butyldimethylsilyl verrucarinolactone

(R*,S*)-α-(benzyloxy)-β-methyl-δ-valerolactone

methyl (2R,3S)-2-(benzyloxy)-3-methylpent-4-enoate

(R)-5-Benzyloxy-3-methyl-pentanoic acid benzyl ester