代谢
体外和体内数据显示,阿莫达非尼经历水解脱酰胺、S-氧化和芳香环羟基化,随后将羟基化产物与葡萄糖醛酸结合。酰胺水解是最主要的代谢途径,其次是由细胞色素P450(CYP)3A4/5形成的磺酰化物。其他氧化产物在体外形成得太慢,无法确定负责的酶。只有两种代谢物在血浆中达到可观的浓度(即R-莫达非尼酸和莫达非尼磺酰化物)。具体针对阿莫达非尼处置的数据不可用。
In vitro and in vivo data show that armodafinil undergoes hydrolytic deamidation, S-oxidation, and aromatic ring hydroxylation, with subsequent glucuronide conjugation of the hydroxylated products. Amide hydrolysis is the single most prominent metabolic pathway, with sulfone formation by cytochrome P450 (CYP) 3A4/5 being next in importance. The other oxidative products are formed too slowly in vitro to enable identification of the enzyme(s) responsible. Only two metabolites reach appreciable concentrations in plasma (i.e., R-modafinil acid and modafinil sulfone). Data specific to armodafinil disposition are not available.
来源:DrugBank