methyl {(R)-5-[(E,E)-hexa-1,3-dienyl]-2,5-dimethyl-4-oxo-4,5-dihydrofuran-3-yl}carboxylate
(?)-graminin A
2,3-Dihydro-5-(4(E))-3-hydroxy-[4-methyl-6-(2,6,6-trimethylcyclohexenyl)-4-hexen-1-ynyl]-5-methyl-1,4-dioxepin
2,3-Dihydro-5-ethynyl-5-methyl-1,4-dioxepin