A 1,2,4-triazole motif is present in numerous commercialized and investigational bioactive molecules. Despite its importance for medicinal chemistry, there is a lack of convenient combinatorial approaches toward this molecular core. Herein, we present a synthetic strategy suitable for the quick preparation of a library of structurally diverse 1,2,4-triazoles in a one-pot setting. The key steps include the formation of thioureas followed by S-alkylation using 1,3-propane sultone and consecutive ring closure leading to the desired 1,2,4-triazoles. Parallel synthesis yields thousands of 1,2,4-triazoles in a cost- and time-efficient manner from commercially available chemicals.

中文翻译：

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轻松地一锅平行合成3-氨基-1,2,4-三唑

1,2,4-三唑基序存在于许多商业化和研究性的生物活性分子中。尽管它对药物化学很重要，但缺乏针对该分子核心的便捷组合方法。在这里，我们提出了一种合成策略，适合在一锅设置中快速制备结构多样的1,2,4-三唑库。关键步骤包括形成硫脲，然后使用1,3-丙烷磺酸内酯进行S-烷基化和连续闭环，从而得到所需的1,2,4-三唑。平行合成可从市售化学品中以节省成本和时间的方式产生数千个1,2,4-三唑。