efficacy, the latter mainly due to the emergence of drug-resistant parasites, which makes discovery of novel, safe, and efficacious antileishmanial drugs mandatory. The present work reports the synthesis, characterization by ESI-MS, 1H and 13C NMR, and FTIR techniques as well as in vitro and in vivo evaluation of leishmanicidal activity of guanidines derivatives presenting lower toxicity. Among ten investigated
利什曼病是一组从该属引起的原生动物寄生虫疾病利什曼原虫。如果不及时治疗,每年估计有130万新病例,每年的死亡率为20,000-30,000。当前可用的
化学治疗药物具有高毒性和低功效,后者主要归因于耐药性寄生虫的出现,这使得发现新颖,安全和有效的抗衰老药物成为必不可少的。本工作报告了ESI-MS,1 H和13 C NMR和FTIR技术以及体外和体内的合成,表征评估具有较低毒性的
胍衍
生物的杀菌活性。在十种被研究的化合物中,所有都是含有苯甲酰基,苄基和取代的苯基部分的
胍,LQOF-G2(IC 50-ama 5.6μM ; SI = 131.8)和LQOF-G7(IC 50-ama 7.1μM ; SI = 87.1)对马氏乳杆菌胞内鞭毛虫最有活性,根据它们的选择性指数,对宿主细胞显示出低细胞毒性。最有希望的化合物LQOF-G2在体内得到了进一步评估并能以0.25 mg / kg /天的剂量减少足