Bioisosteric replacement is a standard technique that is used in medicinal chemistry to design analogs of bioactive molecules with similar biological activity and with additional improved characteristics. Successful application of this technique relies on a good knowledge of physicochemical properties of common organic substituents and an efficient way to navigate their space. In this study the properties of the most common substituents present in bioactive molecules are analysed and a freely-available web tool https://bit.ly/craigplot that allows visualization, analysis and selection of bioisosteric substituents is presented.

中文翻译：

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Craig图2.0：取代基生物立体空间中的交互式导航

生物甾体置换是一种标准技术，用于药物化学中，以设计具有相似生物活性和其他改进特性的生物活性分子类似物。该技术的成功应用取决于对常见有机取代基的理化性质的了解，以及有效导航其空间的方法。在这项研究中，分析了生物活性分子中最常见取代基的性质，并提供了可免费使用的网络工具https://bit.ly/craigplot，该工具可可视化，分析和选择生物等位取代基。