New Amide Derivatives of Quinoxaline 1,4-di-N-Oxide with Leishmanicidal and Antiplasmodial Activities
作者:Carlos Barea、Adriana Pabón、Silvia Pérez-Silanes、Silvia Galiano、German Gonzalez、Antonio Monge、Eric Deharo、Ignacio Aldana
DOI:10.3390/molecules18044718
日期:——
Malaria and leishmaniasis are two of the World’s most important tropical parasitic diseases. Continuing with our efforts to identify new compounds active against malaria and leishmaniasis, twelve new 1,4-di-N-oxide quinoxaline derivatives were synthesized and evaluated for their in vitro antimalarial and antileishmanial activity against Plasmodium falciparum FCR-3 strain, Leishmania infantum and Leishmania amazonensis. Their toxicity against VERO cells (normal monkey kidney cells) was also assessed. The results obtained indicate that a cyclopentyl derivative had the best antiplasmodial activity (2.9 µM), while a cyclohexyl derivative (2.5 µM) showed the best activity against L. amazonensis, and a 3-chloropropyl derivative (0.7 µM) showed the best results against L. infantum. All these compounds also have a Cl substituent in the R7 position.
疟疾和利什曼病是世界上最重要的两种热带寄生虫病。为了继续寻找对疟疾和利什曼病有活性的新化合物,我们合成了 12 种新的 1,4- 二-N-氧化喹喔啉衍生物,并评估了它们对恶性疟原虫 FCR-3 株、婴儿利什曼原虫和亚马逊利什曼原虫的体外抗疟和抗利什曼活性。此外,还评估了它们对 VERO 细胞(正常猴肾细胞)的毒性。结果表明,环戊基衍生物的抗疟活性最好(2.9 µM),环己基衍生物对亚马逊利什曼病的活性最好(2.5 µM),3-氯丙基衍生物对婴儿利什曼病的活性最好(0.7 µM)。所有这些化合物的 R7 位都有一个 Cl 取代基。