Antimalarial Alkoxylated and Hydroxylated Chalones: Structure−Activity Relationship Analysis
作者:Mei Liu、Prapon Wilairat、Mei-Lin Go
DOI:10.1021/jm0101747
日期:2001.12.1
among the active compounds. Hydroxylated chalcones were less active than the corresponding alkoxylated analogues. When evaluated in vivo, 8 and 208 were comparable to chloroquine in extending the lifespan of infected mice. Multivariate data analysis showed that in vitro activity was mainly determined by the properties of ring B. Quantitative structure-activity relationship models with satisfactory predictive
合成在环B上具有2',3',4'-三甲氧基,2',4'-二甲氧基,4'-甲氧基,4'-乙氧基,2',4'-二羟基和4'-羟基的邻苯二甲酰并在[3H]次黄嘌呤摄取测定中针对恶性疟原虫(K1)进行了体外评估。另一个环A是具有不同亲脂性的给电子或吸电子取代基的喹啉,吡啶,萘或苯环。三甲氧基6和27,二甲氧基7,8,29和甲氧基31类似物具有良好的体外活性(IC(50)<5 microM)。在活性化合物中很好地代表了3-喹啉基环A衍生物。羟基查耳酮的活性低于相应的烷氧基化类似物。在体内评估时,8和208在延长被感染小鼠的寿命方面与氯喹相当。多变量数据分析表明,体外活性主要取决于环B的特性。使用对潜在结构的投影,获得了各种B环查耳酮具有令人满意的预测能力的定量构效关系模型。提出了一个具有良好可预测性的模型,用于19个活动查尔肯。尺寸和疏水性被确定为关键参数。