Structure activity relationship studies on rhodanines and derived enethiol inhibitors of metallo-ß-lactamases.
Bioorg Med Chem
; 26(11): 2928-2936, 2018 07 15.
Article
em En
| MEDLINE
| ID: mdl-29655609
ABSTRACT
Metallo-ß-lactamases (MBLs) enable bacterial resistance to almost all classes of ß-lactam antibiotics. We report studies on enethiol containing MBL inhibitors, which were prepared by rhodanine hydrolysis. The enethiols inhibit MBLs from different subclasses. Crystallographic analyses reveal that the enethiol sulphur displaces the di-Zn(II) ion bridging 'hydrolytic' water. In some, but not all, cases biophysical analyses provide evidence that rhodanine/enethiol inhibition involves formation of a ternary MBL enethiol rhodanine complex. The results demonstrate how low molecular weight active site Zn(II) chelating compounds can inhibit a range of clinically relevant MBLs and provide additional evidence for the potential of rhodanines to be hydrolysed to potent inhibitors of MBL protein fold and, maybe, other metallo-enzymes, perhaps contributing to the complex biological effects of rhodanines. The results imply that any medicinal chemistry studies employing rhodanines (and related scaffolds) as inhibitors should as a matter of course include testing of their hydrolysis products.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Rodanina
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Compostos de Sulfidrila
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Beta-Lactamases
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Inibidores de beta-Lactamases
Idioma:
En
Revista:
Bioorg Med Chem
Ano de publicação:
2018
Tipo de documento:
Article