6,7-dimethoxy-2-methyl-3,4-dihydro-1H-isophosphinoline 2-oxide

5,6-dimethoxy-3-oxo-1H-2-benzofuran-1-carboxylic acid

1-(3,4-dimethoxyphenyl)-3-(2-hydroxyphenyl)propane-1,3-dione

4,5-dimethoxyphthalaldehyde

1-(3,4-dimethoxyphenyl)-2-nitroethanone