IUPAC:(3S,3aR,4S,4aR,7R,7aS,8R,9aR)-7-methoxy-3,4a,8-trimethyl-2,5-dioxo-dodecahydroazuleno[6,5-b]furan-4-yl (2Z)-2-methylbut-2-enoate
IUPAC:(3S,3aR,4S,4aR,7R,7aS,8R,9aR)-7-methoxy-3,4a,8-trimethyl-2,5-dioxo-dodecahydroazuleno[6,5-b]furan-4-yl (2Z)-2-methylbut-2-enoate