5-(3,4-dimethoxybenzyl)-2,2,5-trimethyl-1,3-dioxane-4,6-dione

5-[(3,4-dimethoxyphenyl)methyl]-2,2-dimethyl-1,3-dioxane-4,6-dione

5,6-dimethoxy-2-methyl-1H-inden-1-one

3-Chlor-1-hydroxy-5,6-dimethoxy-2-methyl-inden

1,1'-(5,6-dimethoxy-2-methyl-indene-1,3-diyl)-bis-piperidine