代谢
tafenoquine的激活需要CYP 2D6肝微粒体酶的活性。这个激活步骤产生了代谢物5,6-邻醌tafenoquine。这种代谢物被寄生虫内化,并通过ferredoxin-NADP+还原酶和二黄素还原酶酶还原为自由基。在人身上,tafenoquine通过包括O-脱甲基化、N-脱烷基化、N-氧化和氧化脱氨以及8-氨基烷基氨基侧链的C-羟基化在内的多种代谢途径进行代谢。
The activation of tafenoquine needs the activity of CYP 2D6 liver microsomal enzyme. This activation step produces the metabolite 5,6 ortho quinone tafenoquine. This metabolite is internalized by the parasite and reduced to radicals by ferredoxin-NADP+ reductase and diflavin reductase enzymes. In the human, tafenoquine is metabolized by several metabolic pathways including O-demethylation, N-dealkylation, N-oxidation and oxidative deamination as well as C-hydroxylation of the 8-aminoalkylamino side chain.
来源:DrugBank