Synthesis and Anti-<i>Plasmodium</i>Activity of Benzimidazole Analogues Structurally Related to Astemizole
作者:Gheorghe Roman、Ian E. Crandall、Walter A. Szarek
DOI:10.1002/cmdc.201300172
日期:2013.11
A series of compounds structurally related to astemizole were designed and synthesized with the goal of determining their anti‐Plasmodium activity. Several modifications of the astemizole structure, namely the removal of the 4‐fluorobenzyl and/or 4‐methoxyphenethyl moieties, substitution of the benzene ring of the benzimidazole scaffold, replacement of the fluorine atom in the 4‐fluorobenzyl group
设计和合成了一系列与阿司咪唑有关的化合物,目的是确定它们的抗疟原虫活性。阿斯咪唑结构的几种修饰,即除去4-氟苄基和/或4-甲氧基苯乙基部分,取代苯并咪唑支架的苯环,取代4-氟苄基中的氟原子,以及改变4探索了氨基哌啶部分。使用ItG菌株体外评估这些化合物的抗疟原虫活性表明,阿斯咪唑及其某些结构相似的衍生物具有IC 50 值在纳摩尔范围内,并且对中国卵巢仓鼠(CHO)细胞表现出对寄生虫的毒性,选择性高达200。苯并咪唑部分中第2位存在仲环胺并在4和5位被氯取代有两种修饰可以产生基于阿斯咪唑的有效和选择性抗疟药。