Microsomal metabolism of 2-(methylseleno)benzanilide
- 1 May 1990
- journal article
- research article
- Published by American Chemical Society (ACS) in Chemical Research in Toxicology
- Vol. 3 (3) , 199-203
- https://doi.org/10.1021/tx00015a003
Abstract
2-(Methylseleno)benzanilide, a metabolite of ebselen, was oxidatively demethylated by rat liver microsomes to regenerate the parent compound, ebselen. The rate of this novel reaction exceeds that of ring hydroxylation, and it was inhibitable with metyrapone. The sulfur analogue, 2-(methylthio)benzanilide, was oxidized to the corresponding sulfoxide. The regeneration of ebselen from 2-(methylseleno)benzanilide is suggested to result from an intermediate selenoxide and hydrolysis with formation of methanol, since only very small amounts of labeled formaldehyde were detected in incubations using 2-[(14C)methylseleno]benzanilide. In an analogous reaction, 2-(benzylseleno)benzaldehyde yielded ebselen upon oxidation with hydrogen peroxide and, as detected by gas-liquid chromatography, benzyl alcohol.This publication has 6 references indexed in Scilit:
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