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<p>The scope of the Ugi four-center three-component reaction involving 145 oxocarboxylic acids, primary amines, and 220 isonitriles under parallel synthesis conditions was studied. Special attention was paid to the limitations of each starting material; in particular, the relative reactivity of various oxocarboxylic acid types was established. For a model validation library of 1000 members, an experimental synthesis success rate of 88% and median yield of 47% was achieved. The obtained results and established trends were used to generate a 363-million synthetically tractable virtual chemical space of γ- and δ-lactams. The distribution of physicochemical properties within this chemical space revealed that 43% of its members complied with the Lipinski rule-of-five, and a significant fraction of members (21.5 million) were lead-like. Furthermore, the chemical space showed low similarity to already existing compound collections and was enriched with disk-like molecules. Comparison with the ChEMBL database revealed that over 100 representatives generated had biological activity, with some exhibiting potency in the low nanomolar range.</p>

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Generating multimillion chemical space based on the Ugi four-center three-component reaction with oxocarboxylic acids

  • 期刊论文

  • 发表日期：

    2025年11月23日

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  • Evgen V. Govor,
  • Sofia Dymura,
  • Oleksandr Viniichuk,
  • Vasyl Naumchyk,
  • Anton Zhemera,
  • Dmytro S. Radchenko,
  • Oleksandr O. Grygorenko

摘要

The scope of the Ugi four-center three-component reaction involving 145 oxocarboxylic acids, primary amines, and 220 isonitriles under parallel synthesis conditions was studied. Special attention was paid to the limitations of each starting material; in particular, the relative reactivity of various oxocarboxylic acid types was established. For a model validation library of 1000 members, an experimental synthesis success rate of 88% and median yield of 47% was achieved. The obtained results and established trends were used to generate a 363-million synthetically tractable virtual chemical space of γ- and δ-lactams. The distribution of physicochemical properties within this chemical space revealed that 43% of its members complied with the Lipinski rule-of-five, and a significant fraction of members (21.5 million) were lead-like. Furthermore, the chemical space showed low similarity to already existing compound collections and was enriched with disk-like molecules. Comparison with the ChEMBL database revealed that over 100 representatives generated had biological activity, with some exhibiting potency in the low nanomolar range.