(2S)-4-(2,5-Dimethoxy-3,4,6-trimethylphenyl)-2-hydroxy-2-methylbutansaeure-((1S)-1-(benzylcarbamoyl)-ethyl)ester

(2S)-4-(2,5-Dimethoxy-3,4,6-trimethylphenyl)-2-hydroxy-2-methylbutansaeure-[(1R,2S,3S,4S)-3-benzyl-1,7,7-trimethylbicyclo[2.2.1]hept-2-yl]ester

(2S)-4-(2,5-Dimethoxy-3,4,6-trimethylphenyl)-2-hydroxy-2-methylbutansaeure-[(1R,2S,5R)-5-methyl-2-(1-methyl-1-phenylethyl)cyclohexyl]ester

(2S,5S)-2-(tert.-Butyl)5-(2,5-dimethoxy-3,4,6-trimethylphenyl)ethyl)-1,3-dioxolan-4-on

(+)-(S)-2-Hydroxy-2-methyl-4-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dien-1-yl)butansaeure