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. Author manuscript; available in PMC: 2017 Jan 1.
Published in final edited form as: Curr Drug Targets. 2016;17(9):1029–1050. doi: 10.2174/1389450116666151001105622

Figure 1.

Figure 1

Chemical structures of selected examples from six β-lactam structural categories. Examples include a penam (benzylpenicillin), clavam (clavulanic acid), penem (faropenem), carbapenem (imipenem), cephem (cefaclor), monobactam (aztreonam), and the γ-lactam avibactam. The core scaffold for each category is shown in bold.