(E)-6-[5-((2E,4E)-2,5-Dimethyl-nona-2,4-dienoyl)-4-hydroxy-1-methyl-6-oxo-1,6-dihydro-pyridin-2-yl]-hept-2-enoic acid methyl ester

(E)-6-[4-Hydroxy-5-((E)-3-hydroxy-2,5-dimethyl-non-4-enoyl)-6-oxo-6H-pyran-2-yl]-hept-2-enoic acid methyl ester

(E)-6-[5-((2E,4E)-2,5-Dimethyl-nona-2,4-dienoyl)-4-hydroxy-6-oxo-6H-pyran-2-yl]-hept-2-enoic acid methyl ester

4-{2-[5-((2E,4E)-2,5-Dimethyl-nona-2,4-dienoyl)-4-hydroxy-6-oxo-6H-pyran-2-yl]-propyl}-benzoic acid methyl ester

3-{2-[5-((2E,4E)-2,5-Dimethyl-nona-2,4-dienoyl)-4-hydroxy-6-oxo-6H-pyran-2-yl]-propyl}-benzoic acid methyl ester