(1S,5R,6S)-methyl 5-(hexanoyloxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate

methyl (1S,3S,4S,6S,9R)-9-hydroxy-3,4-dimethoxy-3,4-dimethyl-7-oxo-2,5-dioxabicyclo[4.4.0]decane-9-carboxylate

methyl (4S,5R)-4,5-[(2S,3S)-2,3-dimethoxybutan-2,3-dioxy]-3-oxo-cyclohex-1-en-1-carboxylate

methyl (1S,5R,6S)-5-(hexanoyloxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate

methyl DL-(1,3/2)-2,3-di-O-acetyl-2,3-dihydroxy-4-cyclohexene-1-carboxylate