代谢
福斯坦马替尼在肠道中被碱性磷酸酶代谢为活性代谢物R406。R406进一步被CYP3A4氧化并由UGT1A9葡萄糖醛酸化。在血浆中发现的代谢物包括O-葡萄糖醛酸苷、N-葡萄糖醛酸苷、O-去甲基代谢物和硫酸盐结合物。在肠道细菌的作用下,O-去甲基代谢物转化为3,5-苯二酚代谢物,并随粪便排出。
Fostamatinib is metabolized in the gut by alkaline phosphatase to the active metabolite R406. R406 is further oxidized by CYP3A4 and glucuronidated by UGT1A9. Plasma metabolites found include an O-glucuronide conjugate, an N-glucuronide conjugate, an O-desmethyl metabolite, and a sulfate conjugate. A 3,5 benzene diol metabolite forms in the feces via processing of the O-desmethyl metabolite by gut bacteria.
来源:DrugBank