The Synthesis of Waltherione F and Its Analogues with Modifications at the 2- and 3-Positions as Potential Antitrypanosomal Agents
作者:Victor Zdorichenko、Romain Paumier、Thomas Whitmarsh-Everiss、Mark Roe、Brian Cox
DOI:10.1002/chem.201804061
日期:2019.1.24
caused by Trypanosoma cruzi, which is transmitted by the blood‐sucking insect vectors called triatomine bugs. Quinoline alkaloids from the root extract of Waltheria indica are known to possess antitrypanosomal activity. Waltherione F, one of those alkaloids, was synthesised in 5 steps in 11 % overall yield. We report here the first X‐ray crystallographic confirmation of the structure of Waltherione
恰加斯氏病也被称为美洲锥虫病(AT)是南美特有的一种热带寄生虫病,是由克鲁氏锥虫引起的,锥虫是由吸血昆虫媒介(称为Triatomine bug)传播的。已知来自印度Wal的根提取物的喹啉生物碱具有抗锥虫活性。这些生物碱之一Waltherione F以5个步骤合成,总收率为11%。我们在这里报告Waltherione F 3的结构的第一个X射线晶体学证实。序列中的关键步骤是利用Conrad–Limpach合成方法形成喹啉4(1 H一环系统。我们的合成策略旨在改变支架的2位和3位,从而生成多样化的类似物库,以支持我们正在进行的药物化学计划,该计划正在寻找新的药物来应对这种破坏性疾病。