from those responsible for the resistance of Leishmania to Sb(OH)3. In the case of the complexes with PhSbCl2, our data supports the model that both ligand and metal contributed to the overall activity of the complex. Furthermore, among the complexes with SbCl3, only bipy showed an improved activity upon complexation. Cytotoxicity evaluations of these compounds against murine peritoneal macrophages showed
具有氮供体杂环
配体2,2'-联吡啶(bipy),1,10-
菲咯啉(phen)或二
吡啶[3,2-d:2',3'-f]
喹喔啉(dpq)的新型三价
锑配合物具有通过与SbCl 3或PhSbCl 2反应而合成。确定了[Sb(phen)Cl 3 ]和[PhSb(phen)Cl 2 ] CH 3 COOH的晶体结构,并证明它们采用了具有五坐标Sb中心的扭曲方锥几何形状。出人意料的是,所有配合物,
配体和PhSbCl 2都显示出很高的抗菌活性,IC 50在纳摩尔浓度范围内对Sb III敏感和耐药的婴儿利什曼原虫(同种。利什曼原虫(Leishmania chagasi)和亚马逊利什曼原虫(Leishmania amazonensis)菌株。与旧的三价药物
酒石酸锑基
钾盐相比,这些化合物对这些利什曼原虫菌株具有更高的活性。发现[PhSb(phen)Cl 2 ] CH 3 COOH络合物是最活泼的化合物,而PhSbCl