In vitro activity of Bay v 3522, a new cephalosporin, compared with activities of other agents.

Abstract:

:The in vitro activity of Bay v 3522, a new aminobenzothiazol cephem, was compared with those of other oral beta-lactams. Bay v 3522 displayed high activity against Staphylococcus spp. (MICs for 90% of strains tested [MIC90S], 0.5 micrograms/ml), Streptococcus pneumoniae (MIC90, 0.06 micrograms/ml), and Haemophilus influenzae and Branhamella catarrhalis (MIC90S, 2 micrograms/ml). There was limited activity against members of the family Enterobacteriaceae, with the MIC90S being between 4 and greater than 128 micrograms/ml. The stability of Bay v 3522 to hydrolysis by the SHV-1 and TEM-1 enzymes was intermediate to those of cephalexin (least hydrolyzed) and cefaclor, but it was markedly more stable than amoxicillin. There was high affinity to the chromosomally mediated P99 enzyme. The protein binding of Bay v 3522 was 45%. The primary target of Bay v 3522 was penicillin-binding protein 3.

authors

Wise R,Andrews JM,Ashby JP,Thornber D

doi

10.1128/aac.34.5.813

subject

Has Abstract

pub_date

1990-05-01 00:00:00

pages

813-8

issue

5

eissn

0066-4804

issn

1098-6596

journal_volume

34

pub_type

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