IUPAC:(3aR,15aS)-6,14-dimethyl-3-methylidene-2-oxo-2H,3H,3aH,4H,5H,8H,9H,12H,13H,15aH-cyclotetradeca[b]furan-10-carboxylic acid
IUPAC:(3aR,15aS)-6,14-dimethyl-3-methylidene-2-oxo-2H,3H,3aH,4H,5H,8H,9H,12H,13H,15aH-cyclotetradeca[b]furan-10-carboxylic acid