IUPAC:methyl (2E)-5-[(1R,7S,8S,9R)-7-(acetyloxy)-4,9-dimethyl-11-oxo-10-oxatricyclo[6.3.2.0^{1,7}]tridec-3-en-9-yl]-2-methylpenta-2,4-dienoate
IUPAC:methyl (2E)-5-[(1R,7S,8S,9R)-7-(acetyloxy)-4,9-dimethyl-11-oxo-10-oxatricyclo[6.3.2.0^{1,7}]tridec-3-en-9-yl]-2-methylpenta-2,4-dienoate