协晶形成的计算预测:对28个组件的基准研究,比较从高通量到高级模型的五种方法
Robert Fox1, Joaquin Klug2, Damien Thompson3
1School of Chemical Sciences, Dublin City University, Dublin, Ireland.
Journal of computational chemistry
|July 3, 2024
概括
密度函数理论 (DFT) 模型在预测共晶格子热量时表现出不同的准确性. 较轻的DFTB模型产生不切实际的结果,突出了制药共晶研究中需要仔细选择模型的必要性.
科学领域:
- 材料科学 材料科学 材料科学
- 计算化学计算化学
- 晶体学 晶体学是指结晶学.
背景情况:
- 由多个分子通过非对应相互作用形成的共晶体,提供了改善的药物配方特性,如稳定性和可溶性.
- 活性药物成分 (API) 可以从辅助剂中受益,以增强其物理化学特性.
- 准确预测共晶格子度对于设计有效的药物配方至关重要.
研究的目的:
- 系统地比较各种密度函数理论 (DFT) 和密度函数紧密结合 (DFTB) 模型.
- 评估这些模型对药物相关共晶体的晶格度的预测能力.
- 确定可靠的计算方法,用于共同晶体设计.
主要方法:
- 使用了一系列DFT和DFTB计算模型.
- 计算了各种共同晶体的晶格度,包括具有各种共同成份的模型化合物 (4,4'-二氨酸,酸) 和API (阿司匹林,醇).
- 系统地分析了不同计算方法之间的协议和差异.
主要成果:
- DFT模型表明,对简单的共晶体存在普遍共识.
- 对含有API的共晶体的透预测高度依赖于使用的特定DFT模型.
- 尽管DFTB模型在计算上更轻,但即使对于简单的系统,也产生了不切实际的格子值.
结论:
- 选择DFT模型显著影响了对制药类共晶体的晶格热度预测的准确性.
- 在这种情况下,DFTB方法不适合用于可靠的网格电量计算.
- 精心选择计算方法对于成功开发新型共晶药物配方至关重要.
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