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

5-hydroxy-1,2-dimethyl-cyclohex-3-enecarboxylic acid lactone

1,2-dimethyl-5-oxo-cyclohex-3-enecarboxylic acid methyl ester

(1R,2R,5S)-5-Hydroxy-1,2-dimethyl-cyclohex-3-enecarboxylic acid methyl ester

(1R,2R,4S,5S)-4-Iodo-1,2-dimethyl-6-oxa-bicyclo[3.2.1]octan-7-one