代谢
奥利司他在肠壁中被水解。在肥胖患者中进行的一项放射性标记奥利司他质量平衡研究中,确定了两种代谢物。第一种代谢物,M1,是奥利司他β-内酰胺环水解产物。第二种代谢物,M3,是由M1的N-甲酰亮氨酸侧链断裂产生的。这两种代谢物大约占总血浆放射活性的42%。M1和M3都被认为是药理学上不活跃的。
Orlistat is hydrolyzed in the intestinal wall. In a radiolabeled orlistat mass balance study in obese patients, two metabolites were identified. The first metabolite, M1, was the hydrolyzed β-lactone ring product of orlistat. The second metabolite, M3, was produced from M1’s cleavage of the N-formyl leucine side-chain. Both metabolites accounted for about 42% of total plasma radioactivity. Both M1 and M3 are considered pharmacologically inactive.
来源:DrugBank