Showing structure for (1s,3r,5r,6as,7s,8s,9r,10r,10as)-1,3,9-tris(acetyloxy)-10-hydroxy-7,8-dimethyl-7-[(2z)-3-methylpenta-2,4-dien-1-yl]-1h,3h,5h,6h,6ah,8h,9h,10h-naphtho[1,8a-c]furan-5-yl 3-methylbutanoate