(S)-(+)-3,4,8,8a-四氢-8a-甲基-1,6-(2H,7H)-萘醌

2-甲基-1,3-环己二酮

3-(2,5-dimethyl-6-oxocyclohexen-1-yl)propanoic acid

6-hydroxy-1,6-dimethylbicyclo[3.3.1]nonane-2,9-dione