Balsamo A, Barontini S, Calvani F, Gentili D, Macchia M, Rossello A, Di Modugno E, Felici A. New N-substituted 7-aminocephalosporanic acid derivatives as potential agents against Streptococcus pneumoniae. Synthesis and in vitro activity.
Bioorg Med Chem Lett 1999;
9:1035-40. [PMID:
10230635 DOI:
10.1016/s0960-894x(99)00127-4]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The synthesis and the antimicrobial properties of a new series of cephalosporinic beta-lactam antibiotics is described. The data reported in the present paper show the potential of this type of substituted cephalosporins as new anti Gram-positive antibiotic drugs. In fact, all compounds tested showed a good in vitro antibacterial activity against the most relevant Gram-positive pathogens including resistant species that currently represent unmet medical need. On the contrary, the new synthesized compounds were found to be completely devoid of any activity on Gram-negative bacteria up to a concentration of the single agent of 128 microg/ml.
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