cefotaxime

Cefotaxime is an inhibitor of penicillin binding protein.

Cefotaxime is a third-generation cephalosporin antibiotic. Like other third-generation cephalosporins, it has broad spectrum activity against Gram positive and Gram negative bacteria. In most cases, it is considered to be equivalent to ceftriaxone in terms of safety and efficacy. Cefotaxime sodium (Cefotaxim sodium salt) is marketed under various trade names including Claforan (Sanofi-Aventis).

3-Desacetyl Cefotaxime lactone, the active metabolite of Cefotaxime, is derived from its sodium salt form, which is recognized as a third-generation cephalosporin antibiotic.

Desacetylcefotaxime, an in vivo metabolite of Cefotaxime (CTX), exhibits noteworthy in vitro antimicrobial efficacy, akin to its parent compound, against a broad spectrum of aerobic and anaerobic bacteria [1].

Desacetylcefotaxime is an active metabolite of the cephalosporin antibiotic cefotaxime .1It is active against 60 clinical isolates derived from patients with meningitis, includingH. influenzae,S. pneumoniae,S. agalactiae, andN. meningitidis(MIC90s = 0.008-0.12 μg/ml). 1.Jones, R.N.Cefotaxime and desacetylcefotaxime antimicrobial interactions. The clinical relevance of enhanced activity: A reviewDiagn. Microbiol. Infect. Dis.22(1-2)19-33(1995)

KPC-2-IN-2 (Compound 6c) is a potent Klebsiella pneumoniae carbapenemase (KPC-2) inhibitor with a Ki of 0.038 μM and can enhance the activity of cefotaxime in E. coli expressing KPC-2 [1].

KPC-2-IN-1, a boronic acid derivative, serves as an effective KPC-2 inhibitor with a K i of 0.032 μM, augmenting cefotaxime's efficacy against KPC-2 expressing E. coli. It demonstrates good tolerance in human HEK-293 cells, rendering it valuable for researching E. coli's resistance to β-lactam antibiotics [1] [2].

Desacetyl cefapirin is an active metabolite of the cephalosporin antibiotic cefapirin .1 Desacetyl cefapirin is active against E. coli, K. pneumoniae, P. mirabilis, and S. aureus with MIC values of 120, 24, 34, and 0.42 μg/ml, respectively.References1. Jones, R.N., and Packer, R.R. Cefotaxime, cephalothin, and cephapirin: Antimicrobial activity and synergy studies of cephalosporins with significant in vivo desacetyl metabolite concentrations. Diagn. Microbiol. Infect. Dis. 2(1), 65-68 (1984). Desacetyl cefapirin is an active metabolite of the cephalosporin antibiotic cefapirin .1 Desacetyl cefapirin is active against E. coli, K. pneumoniae, P. mirabilis, and S. aureus with MIC values of 120, 24, 34, and 0.42 μg/ml, respectively. References1. Jones, R.N., and Packer, R.R. Cefotaxime, cephalothin, and cephapirin: Antimicrobial activity and synergy studies of cephalosporins with significant in vivo desacetyl metabolite concentrations. Diagn. Microbiol. Infect. Dis. 2(1), 65-68 (1984).

Ceftizoxime, a third-generation cephalosporin effective against Gram-negative and Gram-positive bacteria, binds penicillin-binding proteins (PBPs) to inhibit the bacterial cell wall synthesis. It rather resembles cefotaxime in its properties but is not su