title: Synthesis of valsarin and 5,7-dichloroemodin.
mesh_terms: D000880:Anthraquinones / Q000138:chemical synthesis*; D002400:Cathartics / Q000138:chemical synthesis*; D002713:Chlorine; D006900:Hydroxylation; D008722:Methods; D008745:Methylation
chemical_list: D000880:Anthraquinones; D002400:Cathartics; D002713:Chlorine