Showing structure for 3,11-dihydroxy-3',6',10,11b-tetramethyl-1,2,3,3'a,4,4',4a,5',6,6',6a,6b,7,7',7'a,8,11,11a-octadecahydro-3'h-spiro[cyclohexa[a]fluorene-9,2'-furo[3,2-b]pyridin]-5-one