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9.
Appl Microbiol ; 17(3): 339-43, 1969 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-5780394

RESUMEN

The antibacterial activities of a number of amide derivatives of penicillin against both penicillin-sensitive and penicillin-resistant cultures were determined. Several of them were found to possess significant inhibitory activity against certain gram-positive bacteria. The amides, although resistant to the destructive action of beta-lactamase, did not protect G in competitive experiments. One derivative, the O-benzylhydroxamide of penicillin G, was active against six or eight penicillin-resistant strains of Staphylococcus aureus (minimal inhibitory concentration, 0.2 mug/ml or less), but was found to have only a minimal in vivo activity against mouse Streptococcus infections.


Asunto(s)
Resistencia a las Penicilinas , Penicilinas , Amidas/farmacología , Ampicilina/síntesis química , Ampicilina/farmacología , Animales , Bacterias/efectos de los fármacos , Cloxacilina/uso terapéutico , Ratones , Oxacilina/farmacología , Penicilina G/síntesis química , Penicilina G/farmacología , Penicilina G/uso terapéutico , Penicilinasa , Penicilinas/farmacología , Staphylococcus/efectos de los fármacos , Infecciones Estreptocócicas/tratamiento farmacológico
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