title: New syntheses of porphyrins and related tetrapyrroles.
mesh_terms: D002734:Chlorophyll / Q000096:biosynthesis; D011166:Porphyrins / Q000138:chemical synthesis*; D011758:Pyrroles / Q000138:chemical synthesis*; D013057:Spectrum Analysis
chemical_list: D011166:Porphyrins; D011758:Pyrroles; D002734:Chlorophyll