title: Transformation of penicillin. A new route to 2,2-dimethyl-6beta-phenylacetamidopenam-3alpha-ol S-oxide and its esters; O-nitrobenzoate as a protecting group for alcohols and phenols.
mesh_terms: D000438:Alcohols; D001565:Benzoates; D003499:Cyclic S-Oxides / Q000138:chemical synthesis; D003653:Decarboxylation; D008722:Methods; D009574:Nitro Compounds; D010406:Penicillins / Q000138:chemical synthesis*; D010636:Phenols; D013329:Structure-Activity Relationship
chemical_list: D000438:Alcohols; D001565:Benzoates; D003499:Cyclic S-Oxides; D009574:Nitro Compounds; D010406:Penicillins; D010636:Phenols