Showing structure for (1r,5r,5as,9as,9bs)-1,9b-dihydroxy-6,6,9a-trimethyl-1h,3h,5h,5ah,7h,8h,9h-naphtho[1,2-c]furan-5-yl (2e,4e,6e)-octa-2,4,6-trienoate