(3S,8aR)-3-[2-(2,5-Dimethoxy-3,4,6-trimethyl-phenyl)-ethyl]-3-methyl-tetrahydro-pyrrolo[2,1-c][1,4]oxazine-1,4-dione

(R)-4-(2,5-dihydroxy-3,4,6-trimethylphenyl)-2-hydroxy-2-methylbutanoic acid

(E)-4-(2,5-dimethoxy-3,4,6-trimethylphenyl)-2-methylbut-2-enoic acid

(E)-4-(2,5-dimethoxy-3,4,6-trimethylphenyl)-2-methylbut-2-enoyl chloride

(R,E)-1-(4-(2,5-dimethoxy-3,4,6-trimethylphenyl)-2-methylbut-2-enoyl)pyrrolidine-2-carboxylic acid