Hepatic metabolism of the new antipsychotic agent, mazapertine, in rat--API-MS/MS identification of metabolites.
Eur J Drug Metab Pharmacokinet
; 28(4): 279-86, 2003.
Article
em En
| MEDLINE
| ID: mdl-14743969
ABSTRACT
The In vitro biotransformation of the antipsychotic agent, mazapertine was studied after incubation with rat hepatic S9 fraction in the presence of an NADPH-generating system. Unchanged mazapertine (42% of the sample) plus 12 metabolites were profiled, quantified, and tentatively identified on the basis of API (ionspray)-MS/MS data. The proposed metabolic pathways for mazapertine are proposed, and the 6 metabolic pathways are (1) phenylhydroxylation, (2) piperidyl oxidation, (3) O-dealkylation, (4) N-dephenylation, (5) oxidative N-debenzylation, and (6) dehydration. Pathways 1 to 3 formed 4-OH-phenyl (M1, 10%) and 4-OH-piperidyl (M2, 9%)-mazapertine, O-desisopropyl mazapertine (M3, 17%), and N-desbenzoylpiperidine-mazapertine (M8, 14%) as 4 major metabolites. Mazapertine is extensively metabolized in rat hepatic S9 fraction.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Piperazinas
/
Antipsicóticos
/
Fígado
Tipo de estudo:
Diagnostic_studies
Limite:
Animals
Idioma:
En
Revista:
Eur J Drug Metab Pharmacokinet
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Estados Unidos