Synthesis, Characterization, and Antimalarial Activity of the Glucuronides of the Hydroxylated Metabolites of Arteether
作者:Kumar Ramu、John K. Baker
DOI:10.1021/jm00011a011
日期:1995.5
The hydroxylatedmetabolites (log P 2.6-2.7) of beta-arteether (1) in rat liver microsomes that retain their endoperoxide moiety showed comparable in vitro antimalarial activity to that of the parent drug arteether (log P = 3.89). The search for analogs of artemisinin (7) more suitable for intravenous use led to the synthesis of the glucuronide conjugates of the phase I hydroxylatedmetabolites of arteether
在保留其内过氧化物部分的大鼠肝微粒体中,β-蒿甲醚 (1) 的羟基化代谢物 (log P 2.6-2.7) 显示出与母体药物蒿甲醚相当的体外抗疟活性 (log P = 3.89)。寻找更适合静脉内使用的青蒿素类似物 (7) 导致合成了蒿乙醚 I 相羟基化代谢物的葡糖苷酸结合物,发现其具有良好的水溶性,但仍保持适度的亲脂性(log P = 0.6-1.8 )。虽然在葡萄糖醛酸苷、I 相代谢物和母体化合物的 log P 值之间观察到很强的相关性,但发现 9 β-羟基蒿甲醚葡萄糖醛酸苷 (26) 是最活跃和极性最强的 (log P = 0.61)的葡萄糖醛酸。而体外抗疟活性为 26 (IC50 = 89.