title: Studies related to penicillins. VI. The conversion of penicillin V and 6-aminopenicillanic acid into cepham derivatives.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D008722:Methods; D010404:Penicillin V; D010406:Penicillins
chemical_list: D010406:Penicillins; D010404:Penicillin V