代谢
米卡芬净通过芳基硫酸酯酶代谢为M-1(儿茶酚形式),随后通过儿茶酚-O-甲基转移酶进一步代谢为M-2(甲氧基形式)。M-5是通过细胞色素P450(CYP)同工酶催化的米卡芬净侧链(w-1位置)羟基化形成的。尽管米卡芬净在体外是CYP3A的底物并且是一个弱抑制剂,但在体内CYP3A催化的羟基化并不是米卡芬净代谢的主要途径。
Micafungin is metabolized to M-1 (catechol form) by arylsulfatase, with further metabolism to M-2 (methoxy form) by catechol-O-methyltransferase. M-5 is formed by hydroxylation at the side chain (w-1 position) of micafungin catalyzed by cytochrome P450 (CYP) isozymes. Even though micafungin is a substrate for and a weak inhibitor of CYP3A in vitro, hydroxylation by CYP3A is not a major pathway for micafungin metabolism in vivo.
来源:DrugBank