Showing structure for 3-[5-(1,2,4a,5-tetramethyl-2,3,4,7,8,8a-hexahydronaphthalen-1-yl)-3-methylpent-2-en-1-yl]-3,3a,6-trihydroxy-dihydro-5h-furo[3,2-b]furan-2-one