Quaternary salts of 4,3' and 4,4' bis-pyridinium monooximes: synthesis and biological activity.
Bioorg Med Chem Lett
; 15(12): 3076-80, 2005 Jun 15.
Article
en En
| MEDLINE
| ID: mdl-15908205
ABSTRACT
Six unsymmetrical bis-quaternary monooximes viz. dibromides of 1-(4-hydroxyiminomethyl pyridinium)-3-(3/4-carbamoyl pyridinium)propane, 1-(4-hydroxyiminomethyl pyridinium)-4-(3/4-carbamoyl pyridinium) butane, 1-(4-hydroxyiminomethyl pyridinium)-5-(3/4-carbamoyl pyridinium)pentane were synthesized and characterized by spectral data. Their ability to reactivate tetraethyl pyrophosphate inhibited mouse total brain cholinesterase was investigated and compared with 2-pyridine aldoxime chloride (2-PAM). All the compounds were found to be more effective acetylcholinesterase reactivators when compared with the conventional oxime, 2-PAM, except the compound (5a) with pentylene bridge and carbamoyl group present at fourth position. The bis-pyridinium monooximes with 3-carbamoyl group were more potent reactivators than the corresponding 4-carbamoyl compounds and bis-oximes tested.
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Bases de datos:
MEDLINE
Asunto principal:
Oximas
/
Acetilcolinesterasa
/
Compuestos de Piridinio
/
Reactivadores de la Colinesterasa
Límite:
Animals
Idioma:
En
Revista:
Bioorg Med Chem Lett
Asunto de la revista:
BIOQUIMICA
/
QUIMICA
Año:
2005
Tipo del documento:
Article
País de afiliación:
India