title: Studies on lactams. Part 45. Some carbocyclic analogues of cephalosporin.
mesh_terms: D002511:Cephalosporins / Q000138:chemical synthesis*; D007769:Lactams / Q000138:chemical synthesis; D008826:Microbial Sensitivity Tests; D011083:Polycyclic Compounds / Q000138:chemical synthesis
chemical_list: D002511:Cephalosporins; D007769:Lactams; D011083:Polycyclic Compounds