Novel fluoropeptidomimetics: synthesis, stability studies and protease inhibition
作者:Subhash C. Annedi、Kanchana Majumder、Lianhu Wei、Catherine E. Oyiliagu、Sheeba Samson、Lakshmi P. Kotra
DOI:10.1016/j.bmc.2005.02.011
日期:2005.4
Designer fluoropeptidomimetics as protease inhibitors are revealed. The key peptidomimetic region in the inhibitors contains a '-CHF-S-' moiety and is designed to mimic the tetrahedral oxyanion species during the hydrolysis of a peptide bond. Designed fluoropeptidomimetics in aqueous methanol slowly (in several hours to days) yielded the corresponding methyl ether and/or the oxazole derivatives after
揭示了设计者氟肽模拟物作为蛋白酶抑制剂。抑制剂中的关键拟肽区包含一个“ -CHF-S-”部分,旨在模拟肽键水解过程中的四面体含氧阴离子。在甲醇水溶液中缓慢地(数小时至数天)设计的氟肽模拟物在环化后产生相应的甲醚和/或恶唑衍生物。在C-2位的烷基取代表现出增强的水稳定性。详细公开了“ -CHF-S-”部分的性质和各种氟肽模拟物在水溶液中的稳定性。在P1处含有大量取代基的氟肽模拟物(例如化合物15和16)表现出对胰凝乳蛋白酶的时间依赖性活性损失,Ki分别为63和120 microM时高达[校正的] 67%和79%,分别。氟肽模拟物是一类新型的蛋白酶抑制剂,下一代氟肽模拟物应具有增强的稳定性。