(-)-(4aR,8S,8aS,10aS)-(4aα,8α,8aα,10aβ)-8-acetoxy-3,4,4a,6,7,8,8a,9,10,10a-decahydro-1,1,4a,8a-tetramethylphenanthren-2(1H)-one

(-)-(4aR,8S,8aS,10aS)-(4aα,8α,8aα,10aβ)-8-acetoxy-4,4a,7,8,8a,9,10,10a-octahydro-1,1,4a,8a-tetramethylphenanthrene-2,6(1H,3H)-dione