Methoxytetrahydropyrans. A new series of selective and orally potent 5-lipoxygenase inhibitors
作者:Graham C. Crawley、Robert I. Dowell、Philip N. Edwards、Stephen J. Foster、Rodger M. McMillan、Edward R. H. Walker、David Waterson、T. Geoffrey C. Bird、Pierre Bruneau、Jean Marc Girodeau
DOI:10.1021/jm00092a010
日期:1992.7
the lead (methoxyalkyl)thiazole 1-[3-(naphth-2-ylmethoxy)phenyl]-1-thiazol-2-ylprop yl methyl ether (1, ICI 211965) led to the methoxytetrahydropyrans, a new series of 5-lipoxygenase (5-LPO) inhibitors exemplified by the parent compound 4-[3-(naphth-2-ylmethoxy)phenyl]-4- methoxy-3,4,5,6-tetrahydro-2H-pyran (4f). In vitro 4f inhibited leukotriene C4 (LTC4) synthesis in zymosan-stimulated plasma-free
对(甲氧基烷基)噻唑1- [3-(萘-2-基甲氧基)苯基] -1-噻唑-2-基丙基甲基醚(1,ICI 211965)的SAR的研究导致了新系列的甲氧基四氢吡喃母体化合物4- [3-(萘-2-基甲氧基)苯基] -4-甲氧基-3,4,5,6-四氢-2H-吡喃(4f)为代表的5-脂氧合酶(5-LPO)抑制剂的制备。体外4f抑制了酵母聚糖刺激的无血浆小鼠巨噬细胞中白三烯C4(LTC4)的合成,以及A-23187刺激的人全血中的LTB4合成(IC50分别为0.5 nM和0.07 microM)。在大鼠中,在每个系统口服10 mg / kg后3小时,ED 4抑制了离体血液和经酵母聚糖发炎的空气囊渗出液中LTB4的合成,时间为ED50。在寻求更有效的口服活性化合物时,在4f同类产品中探索了在不牺牲效能的情况下降低亲脂性的策略。例如,用各种氮杂和氧杂环代用品取代4f的2-萘基,得到的化合物的log P降低了1