Synthesis of Novel G Factor or Chloroquine-Artemisinin Hybrids and Conjugates with Potent Antiplasmodial Activity
作者:Dionissia A. Pepe、Dimitra Toumpa、Christiane André-Barrès、Christophe Menendez、Elisabeth Mouray、Michel Baltas、Philippe Grellier、Dionissios Papaioannou、Constantinos M. Athanassopoulos
DOI:10.1021/acsmedchemlett.9b00669
日期:2020.5.14
A series of novel hybrids of artemisinin (ART) with either a phytormone endoperoxide G factor analogue (GMeP) or chloroquine (CQ) and conjugates of the same compounds with the polyamines (PAs), spermidine (Spd), and homospermidine (Hsd) were synthesized and their antiplasmodial activity was evaluated using the CQ-resistant P. falciparum FcB1/Colombia strain. The ART-GMeP hybrid 5 and compounds 9 and 10 which are conjugates of Spd and Hsd with two molecules of ART and one molecule of GMeP, were the most potent with IC50 values of 2.6, 8.4, and 10.6 nM, respectively. The same compounds also presented the highest selectivity indexes against the primary human fibroblast cell line AB943 ranging from 16 372 for the hybrid 5 to 983 for the conjugate 10 of Hsd.
Synthesis and antiplasmodial activity of streptocyanine/peroxide and streptocyanine/4-aminoquinoline hybrid dyes
Two series of streptocyanine dyes incorporating cyclic peroxide or 4-aminoquinoline moieties are prepared and X-ray diffraction structures for three compounds are determined. All hybrid dyes show good antiplasmodial activity (0.06 to 0.66 μM) and are not or are slightly cytotoxic, except 10a.
制备了两个系列的包含环状过氧化物或 4-氨基喹啉部分的链花青染料,并确定了三种化合物的 X 射线衍射结构。除 10a 外,所有杂合染料均表现出良好的抗疟原虫活性(0.06 至 0.66 μM),并且没有或有轻微细胞毒性。