related isomers. Poor solubility of the mixture made the separation and purification impossible. To overcome the separation problem, new and facile unambiguous syntheses of the two active components were reported. The new synthetic methods facilitate the synthesis of not only the active components, but also their derivatives. To search for compounds with good oral efficacy, a series of carbamate derivatives
WR182393是一种通过肌内注射具有有效的因果预防性抗疟疾活性的
胍基
咪唑烷二酮衍
生物,以前是通过处理
氯丙胍和
草酸二乙酯制备的,产生两种密切相关的异构体的混合物。混合物的溶解性差使得不可能进行分离和纯化。为了克服分离问题,报道了两种活性成分的新的和容易的明确合成。新的合成方法不仅促进了活性成分的合成,还促进了其衍
生物的合成。为了寻找具有良好口服功效的化合物,通过该新方法制备了一系列活性成分的
氨基甲酸酯衍
生物,其中许多通过口服显示对小鼠约氏疟原虫具有深远的因果预防性抗疟活性。