3-tert-butyl-1,2-dimethyl-cyclohexanecarboxylic acid methyl ester

1,2,8,8-tetramethyl-4-oxo-1,2,3,4,6,7,8,8a-octahydro-naphthalene-2-carboxylic acid methyl ester

(1R,2R,3S)-3-(1,1-Dimethyl-pent-4-enyl)-1,2-dimethyl-5-oxo-cyclohexanecarboxylic acid methyl ester