title: Synthesis of disulfide analogs of penicillins.
mesh_terms: D004220:Disulfides / Q000138:chemical synthesis*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010406:Penicillins / Q000138:chemical synthesis*; D013055:Spectrophotometry, Infrared
chemical_list: D004220:Disulfides; D010406:Penicillins