title: Photochemical conversion of beta,beta,beta-trichloroethyl 6-diazopenicillanate into 6beta-thiolpenicillin derivatives.
mesh_terms: D010397:Penicillanic Acid / Q000528:radiation effects*; D010406:Penicillins / Q000138:chemical synthesis*; D010777:Photochemistry; D013237:Stereoisomerism; D013438:Sulfhydryl Compounds
chemical_list: D010406:Penicillins; D013438:Sulfhydryl Compounds; D010397:Penicillanic Acid