title: [Calculations of quantum chemistry for the relationship between 6 beta-amido and antibacterial activity in penicillins].
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D008968:Molecular Conformation; D010406:Penicillins / Q000494:pharmacology*; D013329:Structure-Activity Relationship
chemical_list: D010406:Penicillins