Inhibitors of adenosine consuming parasites through polymer-assisted solution phase synthesis of lipophilic 5′-amido-5′-deoxyadenosine derivatives
作者:Philipp Heidler、Vida Zohrabi-Kalantari、Marcel Kaiser、Reto Brun、Thomas Emmrich、Andreas Link
DOI:10.1016/j.bmc.2009.01.026
日期:2009.2
should allow the molecules to diffuse across parasite membranes. Starting from readily available inosine, the new compounds were prepared as single isomers using a polymer-assisted acylation protocol enabling the straightforward isolation of the target compounds in pure form. Heterocyclic ring systems were synthesized on-bead on Kenner’s safety-catch linker prior to acylation of the scaffold in solution
鉴于多药耐药性疟原虫在全球范围内或多或少地扩散,迫切需要开发用于治疗疟疾的化学治疗剂的结构上不同的起点。因此,制备了一系列在N 6位具有大亲脂性取代基的20个腺苷衍生物,以评估其在体外抑制耐氯喹的恶性疟原虫菌株K1的潜力。合成这些结构的基本原理是与多个腺苷相关靶标相互作用的可能性很高,并且假定疏水性大的N 6-(4-苯氧基)苄基取代应使分子在整个寄生虫膜上扩散。从容易获得的肌苷开始,使用聚合物辅助的酰化方案将新化合物制备为单一异构体,从而可以直接分离纯净形式的目标化合物。在溶液中的支架被酰化之前,在Kenner的安全捕捉接头上的珠子上合成了杂环系统。大多数高纯度化合物在低微摩尔甚至亚微摩尔浓度范围内均显示出抗疟原虫活性。