title: [N-heterocyclics of bis-chromonyl derivatives].
mesh_terms: D002867:Chromones / Q000138:chemical synthesis*; D006571:Heterocyclic Compounds / Q000138:chemical synthesis
chemical_list: D002867:Chromones; D006571:Heterocyclic Compounds
vernacular_title: N-Heterocyclen aus Bischromonyl-Derivaten.