通过一种新的多分子碎片拦截方法对药物分子进行波振动频率模拟
Linjie Wang1, Pengtu Zhang1, Yali Geng1
1School of Chemical Engineering, Shandong Institute of Petroleum and Chemical Technology, Dongying 257061, China.
一种新的多分子碎片方法准确地模拟了菲纳斯特,拉米武丁和雷帕格林的振动频率. 这种计算方法为制药分析提供了比传统的单分子和中分子模型更好的准确性.
科学领域:
- 计算化学计算化学
- 分子建模分子建模
- 频谱学是一种光谱学.
背景情况:
- 精确模拟分子振动频率对于药物表征至关重要.
- 现有的计算方法经常与复杂的药物分子,特别是具有键的药物分子作斗争.
研究的目的:
- 开发和验证一种新的计算方法来模拟平衡几何和振动频率.
- 为了评估新方法的适应性,使用Finasteride,Lamivudine和Repaglinide作为模型分子.
主要方法:
- 使用的密度函数理论 (DFT) 与一般化梯度近似 (GGAs) 和PBE函数.
- 使用了Material Studio 8.0软件来构建和计算单分子,中分子和多分子碎片模型.
- 将理论振动频率与实验数据进行比较,以评估准确性.
主要成果:
- 单分子和中央分子模型显示了精度的局限性,后者提供了一些改进,但表现出不稳定.
- 新的多分子碎片拦截方法与实验振动频率有很好的一致性.
- 通过使用新方法实现了菲纳斯特,拉米武丁和雷帕格林的低平均绝对误差 (MAE) 和根平均平方误差 (RMSE).
结论:
- 多分子碎片拦截方法在模拟药品振动频率方面取得了重大进展.
- 这种方法提供了可靠和全面的振动频率数据,用于菲纳斯特,拉米武丁和Repaglinide.
- 这项研究为药物设计和分析提供了有价值的计算工具.
更多相关视频
09:35The Identification of Sea Lamprey Pheromones Using Bioassay-Guided Fractionation
Published on: July 17, 2018
08:54Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
Published on: January 25, 2020
相关概念视频
IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration
According to Hooke's law, the vibrational frequency is directly proportional to...
IR Spectroscopy: Molecular Vibration Overview
Stretching vibrations are vibrational motions that occur along the bond line, changing the bond length or distance between two bonded atoms. They are further distinguished as symmetric or asymmetric. In symmetric stretching, the...
Mass Spectrometry: Aromatic Compound Fragmentation
High-Resolution Mass Spectrometry (HRMS)
¹H NMR of Conformationally Flexible Molecules: Temporal Resolution
¹H NMR: Interpreting Distorted and Overlapping Signals
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
