title: Pyrroles and related compounds. 27. Syntheses of porphyrins with a nuclear carboxy-group.
mesh_terms: D002264:Carboxylic Acids / Q000138:chemical synthesis; D008722:Methods; D011166:Porphyrins / Q000138:chemical synthesis*; D011758:Pyrroles
chemical_list: D002264:Carboxylic Acids; D011166:Porphyrins; D011758:Pyrroles