Kempene-2

5β-Acetoxy-2,2a,4aα,5,6,7,7aα,8,10bβ,10c-decahydro-2aβ,7α,10,10cβ-tetramethylnaphtho[2,1,8-cde]azulene-3(4H)-one

(2aS)-5β-Acetoxy-2a,7α,10,10cβ-tetramethyl-2,4,4aα,5,6,7,7aα,8,10bβ,10c-decahydronaphth[2,1,8-cde]azulen-3(2aH)-one