Abstract

Novel 2-aminopyrimidine derivatives were prepared from acyclic starting materials, benzylidene acetones and ammonium thiocyanates, via 5 steps, including ring closure, aromatization, S-methylation, oxidation to methylsulfonyl compounds, and formation of guanidines with suitable amines. The prepared compounds differ from each other by the substitutions of their amino group and of their phenyl ring. The 2-aminopyrimidines were tested by use of microplate assays for their in vitro activities against a causative organism of sleeping sickness, Trypanosoma brucei rhodesiense, as well as against a causative organism of malaria, Plasmodium falciparum NF54. Their cytotoxic properties were determined with L-6 cells (rat skeletal myoblasts). Some of the compounds exhibited quite good antitrypanosomal activity, and others showed excellent antiplasmodial activity. The influence of the structural modifications on these activities is discussed.

Graphic abstract

中文翻译：

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新的2-氨基嘧啶衍生物及其抗锥虫和抗疟原虫活性

摘要

由无环起始原料，亚苄基丙酮和硫氰酸铵通过5个步骤制备新的2-氨基嘧啶衍生物，包括闭环，芳构化，S-甲基化，氧化成甲基磺酰基化合物以及与合适的胺形成胍。制备的化合物彼此不同之处在于其氨基和其苯环的取代。通过使用微孔板检测法测试了2-氨基嘧啶类药物对睡眠病病原体Trypanosoma brucei rhodesiense以及疟疾病原体恶性疟原虫的体外活性。NF54。用L-6细胞（大鼠骨骼肌成肌细胞）测定其细胞毒性。一些化合物表现出相当好的抗锥虫活性，而另一些则表现出出色的抗血浆活性。讨论了结构修改对这些活动的影响。

图形摘要