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Inhibition of beta-lactamase II of Bacillus cereus by penamaldic derivatives of penicillins. 2004
Pilar Gutiérrez Navarro, and
Bartolomé Quintero Osso, and
Raquel García Ortiz, and
Pedro J Martínez De Las Parras, and
María I Martínez Puentedura, and
M Carmen Cabeza González
Department of Physical Chemistry, School of Pharmacy, University of Granada, E-18071 Granada, Spain. mpgn@platon.ugr.es
The penamaldic derivatives of amoxicillin, ampicillin, and penicillins G and V, stabilized with Zn(2+), were obtained from a methanolic medium. The enzymatic kinetic results show that the these derivatives elicit reversible inhibition of the enzyme metallo-beta-lactamase from Bacillus cereus, with inhibition constant values determined at pH 7.0 and 25 degrees C.
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