Showing structure for 7-[(acetyloxy)methyl]-4,5-dihydroxy-3,11,11,14-tetramethyl-15-oxotetracyclo[7.5.1.0¹,⁵.0¹⁰,¹²]pentadeca-2,7-dien-6-yl (2e)-deca-2,4-dienoate