title: Synthesis and reactions of alpha-thioformyl dipeptides, possible biogenetic precursors of penicillin.
mesh_terms: D003500:Cyclization; D004151:Dipeptides / Q000138:chemical synthesis* / Q000528:radiation effects; D005557:Formaldehyde / Q000138:chemical synthesis / Q000528:radiation effects; D007769:Lactams / Q000138:chemical synthesis; D008722:Methods; D010406:Penicillins; D010782:Photolysis; D011830:Radiation Effects; D013696:Temperature; D013871:Thiones / Q000138:chemical synthesis / Q000528:radiation effects; D014466:Ultraviolet Rays
chemical_list: D004151:Dipeptides; D007769:Lactams; D010406:Penicillins; D013871:Thiones; D005557:Formaldehyde