Synthesis and SAR studies of potent HIV protease inhibitors containing novel dimethylphenoxyl acetates as P 2 ligands
作者:Xiaoqi Chen、Dale J. Kempf、Lin Li、Hing L. Sham、Sudthida Vasavanonda、Norman E. Wideburg、Ayda Saldivar、Kennan C. Marsh、Edith McDonald、Daniel W. Norbeck
DOI:10.1016/j.bmcl.2003.08.043
日期:2003.11
combination of ligands were investigated. Preliminary pharmacokinetic studies in rats indicated rapid elimination of the inhibitors from the blood, and the plasma levels were not significantly enhanced by coadministration with ritonavir. However, the novel structural features and the high intrinsic antiviral potency of this series provides potential for the future exploration of prodrug strategies.
异丙基取代的4-thioazolyl缬氨酸侧链是高度优化的P(2)-P(3)配体,用于基于C2对称性的HIV蛋白酶抑制剂,如药物利托那韦的例子。用构象约束的六氢呋喃呋喃基氧基P(2)配体与利托那韦核心二胺另一端的二甲基苯氧基乙酸酯结合,取代侧链,产生了高效的HIV蛋白酶抑制剂。与利托那韦相比,在不存在和存在50%人血清的情况下,MT4细胞中的体外抗病毒活性分别提高了10倍和20倍。研究了抑制剂系列与这种配体组合的构效关系。在大鼠中进行的初步药代动力学研究表明,该抑制剂可从血液中快速清除,与利托那韦合用不会显着提高血浆水平。然而,该系列的新颖结构特征和高内在抗病毒效力为前药策略的未来探索提供了潜力。