与模型系统结合的单价离子和宏循环脱类,emodepside
Govindan Subramanian1, Kanika Manchanda2, Yirong Mo3
1Architect Therapeutics Inc., San Diego, California, USA.
Journal of computational chemistry
|June 26, 2024
概括
本研究使用计算方法探索了与 (K+) 离子复杂的emodepside构造. 一个稳定的,状结构被确定为K+结合最有利的能量安排.
科学领域:
- 计算化学计算化学
- 分子建模分子建模
- 量子化学 是一个量子化学.
背景情况:
- 埃莫德普赛德是一种具有潜在生物活性的循环脱类.
- 了解离子结合对于药物设计和分子识别至关重要.
- 离子 (K+) 在生物系统中起着至关重要的作用.
研究的目的:
- 系统地研究与单价 (K+) 离子结合的模体构造.
- 描述这些复合物的结构,能量和结合性质.
- 阐明控制K+离子与emodepside结合的因素.
主要方法:
- 密度函数理论 (DFT) 在M06-2X/6-31+G(d,p) 层面的计算.
- 描述了九个emodepside-K+对应物作为静止点.
- 自然键轨道 (NBO) 和块局部波函数 (BLW) 能量分解分析.
- 隐式溶剂模型 (水,DMSO) 的模拟.
主要成果:
- 确定了九种不同的emodepside-K+符合者.
- 一个稳定的,洞形状的 (CC) 结构成为最有利的能源.
- NBO和BLW分析了对离子结合的量化结合和能量贡献.
- 评估了溶剂对复合体稳定性的影响.
结论:
- 形状的形状是K+与emodepside的关键结合动机.
- 计算方法提供了对离子-连接体相互作用的详细见解.
- 了解这些相互作用可以为具有特定离子结合特性的新分子的设计提供信息.
更多相关视频
相关概念视频
Complexation Equilibria: The Chelate Effect
498
In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
498
EDTA: Chemistry and Properties
1.9K
Polydentate ligands are most widely used in complexometric titrations because they form more stable complexes with the metal ions than mono- or bidentate ligands due to the chelate effect. Examples of polydentate ligands are ethylenediaminetetraacetic acid (EDTA), crown ethers, and cryptands. The most important feature of optimal polydentate ligands is the ability to form 1:1 complexes in a single-step process. Amino carboxylic acid derivatives are frequently used as complexing agents. EDTA is...
1.9K


