(4'aR,4'bR,8'R,8'aR,10'aR)-1',1',4'a,7',8',8'a-hexamethyl-3',4',4'a,4'b,5',8',8'a,9',10',10'a-decahydro-1'H-spiro[1,3-dioxolane-2,2'-phenanthrene]-8'-ol

(+)-(4aR,4bR,8R,8aR,10aR)-8-hydroxy-1,1,4a,8a-tetramethyl-3,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydrophenanthren-2(1H)-one

(-)-(4aR,4bR,8aR,10aR)-7,7-ethylenedioxy-4b,8,8,10a-tetramethyl-3,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydrophenanthren-1(2H)-one