过渡状态强力场对不对称的反氧-继电器背部反应
Anthony R Rosales1, Sean P Ross2, Paul Helquist1
1Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States.
Journal of the American Chemical Society
|April 7, 2020
概括
一个新的过渡状态力场 (TSFF) 准确地预测了对抗选择性赫克反应的立体选择性. 这种计算方法加速了复杂有机反应的绝对立体化学的确定.
科学领域:
- 有机化学
- 计算化学
- 化学物理
背景情况:
- 对于合成性分子而言,酶选择性氧化还原继电Heck反应至关重要.
- 预测这些反应的立体化学结果是具有挑战性的.
- 需要精确的计算模型来指导反应优化.
研究的目的:
- 开发和验证一个过渡状态力场 (TSFF) 的固态测定步骤的enantioselective氧化还原继电Heck反应.
- 根据实验数据评估TSFF的预测能力.
- 探索TSFF的新应用,包括虚拟连接体查.
主要方法:
- 使用量子导向分子力学 (Q2MM) 方法开发 TSFF.
- 针对151个实验确定立体选择性的TSFF的外部验证.
- 将TSFF结果与DFT计算进行比较,以确定力场的限制.
- 应用TSFF用于预测体和进行虚拟体选.
主要成果:
- 该TSFF的预测精度高,R2为0.89和MUE为1.8kJ/mol.
- 对于31个病例的TSFF预测显示出与已公布的抗体差异,后来通过实验证实了这一点.
- 虚拟连接体查显示TSFF与分子相关性方法相比,但具有增强的实用性.
结论:
- 开发的TSFF是一种可靠的工具,用于预测选择性赫克反应的绝对立体化学.
- TSFF提供了一个快速而准确的方法来确定立体化学结果.
- 在反应设计和催化剂发现方面,TSFF具有显著的应用潜力.
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