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LY173013 and LY186826 are bicyclic pyrazolidinones containing a novel aza-gamma-lactam ring structure. The antibacterial properties of these compounds appear to be related to those of beta-lactam antibiotics in that both classes of compounds share certain common binding molecules such as beta-lactamases and penicillin-binding proteins.
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Allen et al. (1990) studied this question.
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