title: Rearrangements of penicillin sulfoxides.
mesh_terms: D002511:Cephalosporins / Q000138:chemical synthesis; D055598:Chemical Phenomena; D002621:Chemistry; D010406:Penicillins; D013454:Sulfoxides
chemical_list: D002511:Cephalosporins; D010406:Penicillins; D013454:Sulfoxides