individual, non-hybridized compounds. Furthermore, these hybrids were stronger β-haematin inhibitors than the corresponding molecules from which they were derived. The most effective antimalarial hybrid showed an IC50 value of 0.45 nM against the CQS strain. At the same time this hybrid also showed effective activity against the CQR strain, with an IC50 value of 0.42 nM and an RI value of 0.93. With the
合成了
青蒿琥酯-
吲哚[2,3- b ]
喹啉,–indolo [3,2- c ]
喹啉和–indolo [3,2- b ]
喹啉的杂种,并筛选了它们对两种不同疟疾菌株的抗疟原虫活性(
CQS和
CQR)及其对正常细胞的细胞毒活性进行了评估。相对于单独的非杂交化合物,所有合成的杂种均显示出降低的细胞毒性和增强的抗疟活性。此外,这些杂种比它们衍生自的相应分子是更强的β-血红素
抑制剂。最有效的抗疟杂种表现出IC 50
CQS菌株的0.45 nM值。同时,该杂种还显示出对
CQR菌株的有效活性,IC 50值为0.42 nM,RI值为0.93。将
青蒿琥酯-
吲哚并[2,3- b ]
喹啉的剂量设定为连续10天每天连续10天,剂量为10 mg kg -1时,第4天的寄生虫血症显着降低,抗寄生虫活性为89.6%,平均小鼠存活时间为7.7天。