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Structure of the classical cephalosporins. The cephalosporins (sg. / ˌ s ɛ f ə l ə ˈ s p ɔːr ɪ n, ˌ k ɛ-,-l oʊ-/ [1] [2]) are a class of β-lactam antibiotics originally derived from the fungus Acremonium, which was previously known as Cephalosporium. [3] Together with cephamycins, they constitute a subgroup of β-lactam antibiotics ...
The core of the basic cephalosporin molecule consists of a two ring system which includes a β-lactam ring condensed with dihydrothiazine ring. The core itself can also be referred to as 7-aminocephalosporanic acid which can be derived by hydrolysis from the natural compound cephalosporin C.
In the context of medical pharmacology, penicillins, cephalosporins, and carbapenems, while all have the β-lactam ring that serves as the fundamental structure, also have an auxiliary ring that carries a carboxylate group that is positioned on the same side as the carbonyl group within the β-lactam ring, and, as such, this structural ...
Cefaclor, sold under the trade name Ceclor among others, is a second-generation cephalosporin antibiotic used to treat certain bacterial infections such as pneumonia and infections of the ear, lung, skin, throat, and urinary tract. It is also available from other manufacturers as a generic.
Ceftriaxone, sold under the brand name Rocephin, is a third-generation cephalosporin antibiotic used for the treatment of a number of bacterial infections. [4] These include middle ear infections, endocarditis, meningitis, pneumonia, bone and joint infections, intra-abdominal infections, skin infections, urinary tract infections, gonorrhea, and pelvic inflammatory disease. [4]
Cefuroxime, sold under the brand name Zinacef among others, is a second-generation cephalosporin [3] antibiotic used to treat and prevent a number of bacterial infections. [4] These include pneumonia , meningitis , otitis media , sepsis , urinary tract infections , and Lyme disease . [ 5 ]
Cefixime is a broad spectrum cephalosporin antibiotic and is commonly used to treat bacterial infections of the ear, urinary tract, and upper respiratory tract. The following represents MIC susceptibility data for a few medically significant microorganisms: [15] Escherichia coli: 0.015 μg/mL – 4 μg/mL
Cephalosporin C is an antibiotic of the cephalosporin class. It was isolated from a fungus of the genus Acremonium and first characterized in 1961. [ 1 ] Although not a very active antibiotic itself, synthetic analogs of cephalosporin C, such as cefalotin , became some of the first marketed cephalosporin antibiotic drugs.