Letter: A rearrangement of penicillin sulfoxides to 3-methylenecephams via sulfinyl intermediates.
D002511:Cephalosporins / Q000138:chemical synthesis*; D055598:Chemical Phenomena; D002621:Chemistry; D003500:Cyclization; D010406:Penicillins; D013441:Sulfinic Acids; D013454:Sulfoxides
D002511:Cephalosporins; D010406:Penicillins; D013441:Sulfinic Acids; D013454:Sulfoxides