3-hydroxy-4,5-dimethoxybenzaldehyde
4-(5-formyl-2,3-dimethoxy-phenoxy)-benzoic acid methyl ester
2,3-Dimethoxy-5-(trans-2-nitro-vinyl)-phenol
4-(5-formyl-2,3-dimethoxy-phenoxy)-benzoic acid
4-[5-(2-amino-ethyl)-2,3-dimethoxy-phenoxy]-benzoic acid