Showing structure for (1r,2r,6s,10s,11r,13s,14r,15r)-13-(acetyloxy)-1-hydroxy-8-(hydroxymethyl)-4,12,12,15-tetramethyl-5-oxotetracyclo[8.5.0.0²,⁶.0¹¹,¹³]pentadeca-3,8-dien-14-yl (4e)-octa-2,4-dienoate