Benzoic acid (3S,3aS,3bR,7aR)-2,2,3b-trimethyl-7-oxo-2,3,3a,3b,4,5,7,7a-octahydro-1H-cyclopenta[a]pentalen-3-yl ester

Benzoic acid (3R,3aR,3bS,7R,7aS)-7-acetoxy-2,2,3b-trimethyl-5-oxo-2,3,3a,3b,4,5,7,7a-octahydro-1H-cyclopenta[a]pentalen-3-yl ester