Several 5-ethyl-6-methyl-4-cycloalkyloxy-pyridin-2(1H)-ones were synthesized and evaluated for their anti HIV-1 activities against wild-type virus and clinically relevant mutant strains. A racemic mixture (10) with methyl substituents at positions 3 and 5 of the cyclohexyloxy moiety had potent antiviral activity against wild-type HIV-1. Subsequent stereoselective synthesis of a stereoisomer displaying
合成了几个5-乙基-6-甲基-4-环烷氧基-
吡啶-2(1 H)-1 ,并评估了它们对野生型病毒和临床相关突变株的抗HIV-1活性。在环己氧基部分的3和5位带有甲基取代基的外消旋混合物(10)对野生型HIV-1具有有效的抗病毒活性。随后的立体异构体的立体选择性合成显示出两个赤道位置上的甲基均被发现具有最佳的
EC 50值。集中在
吡啶酮环的位置3上的进一步调节改善了对突变病毒株的抗病毒活性。带有3-乙基(22)或3-异丙基(23)对野生型HIV-1具有最高的活性,并且对几种临床相关的突变株显示出低纳摩尔效价。