Deacylation of N-Formylanilines and N-Acetylanilines by Rat Liver Formamidase

Autor:	Shigeru Ohta, Osamu Ueda, Kazumi Sugihara, Shigeyuki Kitamura
Rok vydání:	2003
Předmět:	Chemistry Stereochemistry Health Toxicology and Mutagenesis Metabolite Sulfanilamide Toxicology chemistry.chemical_compound Cytosol Aniline Biochemistry Acetylation medicine Diisopropyl fluorophosphate Formamidase Acetanilide medicine.drug
Zdroj:	Journal of Health Science. 49:501-508
ISSN:	1347-5207 1344-9702
Popis:	The deacylation of N-formylanilines and N-acetylanilines to aniline derivatives was examined in rat liver preparations. When N4-formylsulfanilamide or N4-acetylsulfanilamide was incubated with rat liver cytosol, the deacylated metabolite, sulfanilamide, was formed. These deacylating activities were inhibited by paraoxone and diisopropyl fluorophosphate, inhibitors of formamidase. N4-Formylsulfanilamide and N4-acetylsulfanilamide were deacylated by formamidase purified from rat liver cytosol. N-Acetyl- or N-formylanilines bearing an electron-withdrawing group at the para position were deacylated to anilines by formamidase. In contrast, anilines bearing an electron-donating group at the para position were formylated to N-formylanilines in the presence of N-formyl-L-kynurenine. Formamidase catalyzed both N-formylation of aniline derivatives, and deacylation of N-formylanilines and N-acetylanilines.
Databáze:	OpenAIRE
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