波谱学杂志 ›› 2007, Vol. 24 ›› Issue (4): 519-525.

• 祝贺邬学文先生八十华诞(专辑) • 上一篇    下一篇

AT1受体拮抗剂V8、V12和BZI8结构的量子化学研究

张会婷1,2*,王琳1,2,危佳1,2,何宏庆1,杨明晖1   

  1. 1.波谱与原子分子物理国家重点实验室(中国科学院 武汉物理与数学研究所), 湖北 武汉 430071; 
    2.中国科学院 研究生院, 北京 100049
  • 收稿日期:2007-05-09 修回日期:2007-07-11 出版日期:2007-12-05 发布日期:2007-12-05
  • 作者简介:张会婷(1982-),女,河南禹州人,硕士研究生,无线电物理专业,E-mail:zhanght@wipm.ac.cn.*通讯联系人.

Quantum Chemical Investigation of the Structure and Chemical Shifts of AT1 Antagonists V8, V12 and BZI8

ZHANG Hui-ting1,2*, WANG Lin1,2, WEI Jia1,2, HE Hong-qing1, YANG Ming-hui1   

  1. 1.State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics (Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences), Wuhan 430071, China;
    2.Graduate School of the Chinese Academy Sciences Beijing 100049, China
  • Received:2007-05-09 Revised:2007-07-11 Online:2007-12-05 Published:2007-12-05
  • About author:*Corresponding author:Zhang Hui-ting,E-mail:zhanght@wipm.ac.cn.

摘要:

基于Mavromoustakos等人的分子动力学和蒙特卡罗方法结果,本文利用量子化学计算的方法研究了SARTANS(沙坦)类的3种AT1受体拮抗剂(V8、V12和BZI8). 在B3LYP/6-31G(d)方法下计算得到了3种药物分子的平衡几何结构,并且采用B3LYP-GIAO/6-311G(dp)方法计算了这些药物分子中的质子化学位移. 通过研究结果可以看出,本文采用量子化学方法计算得到的3种分子的结构与Mavromoustakos等人通过分子动力学和蒙特卡罗方法得到的结果比较接近,计算结果与核磁共振实验的ROE数据和1H谱相比吻合得较好,说明所获得的结构较为合理. 另外通过对所获得分子结构进行叠合分析发现,同属SARTANS类的3种分子在联苯咪唑环区域具有很大的相似性.

关键词: 量子化学, 化学位移, 密度泛函, AT1受体拮抗剂

Abstract:

Starting from the structures of Mavromoustakos´ molecular dynamics and Monte Carlo simulations, the equilibrium geometry structures and the vibrational frequencies of the SARTANS group AT1 antagonists V8, V12 and BZI8 were calculated at the B3LYP/6-31G(d) level, and the chemical shifts of the protons were calculated by B3LYP-GIAO method with the basis set of 6-311G(d, p). The computational results were found in reasonable agreement with the NMR experimental data of ROE and the 1H spectrum. Few differences were found between the structures of Mavromoustakos´s and ours´. It is postulated that both the structures obtained are reasonable. With superimposition of the optimized structure, there is similarity in the biphenyl imidazole rings of the three molecules belonging to SARTANS group.

Key words: quantum chemical calculation, chemical shift, DFT, AT1 antagonists

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