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