Giferolide

Diversolide C

3β-(3-Methyl-2-butenoyloxy)-4β-(benzoyloxy)-3,6,9-trimethyl-2,3,3aβ,4,5,7,9aα,9bβ-octahydroazuleno[4,5-b]furan-2,7-dione

3-Methyl-2-butenoic acid [[(3S)-4β-(benzoyloxy)-2,3,3aβ,4,5,7,9aα,9bβ-octahydro-3,6,9-trimethyl-2,7-dioxoazuleno[4,5-b]furan]-3β-yl] ester