代谢
多非利特主要经CYP3A介导的肝脏代谢。多非利特的初始代谢涉及N-脱丁基化,形成N-脱丁基多非利特,该代谢物保留母化合物1/10至1/3的药理活性。N-脱丁基多非利特可以通过O-脱烷基化进一步代谢为酚多非利特,通过氧化脱氨作用代谢为丙酸多非利特。多非利特还可以通过CYP2D6代谢形成苯并呋喃-羟基多非利特。其他可检测到的代谢物包括C-脱烷基多非利特和二丁基胺-羟基多非利特,以及具有未确定化学结构的其他少量下游代谢物。
Dronedarone predominantly undergoes CYP3A-mediated hepatic metabolism. Initial metabolism of dronedarone involves N-debutylation to form the N-debutyl-dronedarone, which retains 1/10 to 1/3 of pharmacological activity of the parent compound. N-debutyl-dronedarone can be further metabolized to phenol-dronedarone via O-dealkylation and propanoic acid-dronedarone via oxidative deamination. Dronedarone can also be metabolized by CYP2D6 to form benzofuran-hydroxyl-dronedarone. Other detectable metabolites include C-dealkyl-dronedarone and dibutylamine-hydroxyl-dronedarone, along with other minor downstream metabolites with undetermined chemical structures.
来源:DrugBank