Chemical Research in Chinese Universities ›› 2015, Vol. 31 ›› Issue (2): 228-234.doi: 10.1007/s40242-015-4348-3

• Articles • Previous Articles     Next Articles

Synthesis, Biological Activity and 3D-QSAR Study of Novel Pyrrolidine-2,4-dione Derivatives Containing N-Substituted Phenylhydrazine Moiety

ZHANG Lizhi1,3, REN Zhengjiao1,3, LU Aimin2,3, ZHAO Zheng2,3, XU Wenqin1,3, BAO Qianqian3, DING Weijie3, YANG Chunlong1,2,3   

  1. 1. Jiangsu Key Laboratory of Pesticide Science, Nanjing Agricultural University, Nanjing 210095, P. R. China;
    2. Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, P. R. China;
    3. College of Science, Nanjing Agricultural University, Nanjing 210095, P. R. China
  • Received:2014-09-19 Revised:2014-10-20 Online:2015-04-01 Published:2014-11-17
  • Contact: YANG Chunlong E-mail:ycl@njau.edu.cn
  • Supported by:

    Supported by the National High Technology Research and Development Program of China(No.2011AA10A206), the National Key Technologies R&D Program of China(No.2011BAE06B04), the Science & Technology Pillar Program of Jiangsu Province, China(No.BE2012371), the National Natural Science Foundation of China(No.31171889) and the Fundamental Research Funds for the Central Universities of China(No.KYZ201223).

Abstract:

Twenty-seven novel pyrrolidine-2,4-dione derivatives containing N-substituted phenylhydrazine moiety were synthesized. Their structures were confirmed by 1H NMR, 13C NMR and MS. The half effective concentration (EC50) values of the title compounds against the phytopathogenic fungi Rhizoctonia cerealis were evaluated. Compounds 6l and 6q displayed good bioactivity with EC50 values of 1.626 and 2.043 μg/mL, respectively. The 3D quantitative structure activity relationship(3D-QSAR) model of CoMFA was established with reliable cross-validated correlation coefficient q2 value of 0.585 and Noncross-validated correlation coefficient r2 value of 0.971. This model provided a tool for guiding further design and synthesis of novel pyrrolidine-2,4-dione derivatives with high fungicidal activity.

Key words: Pyrrolidine-2,4-dione, N-Substituted phenylhydrazine, Antifungal activity, 3D quantitative structure acti-vity relationship(3D-QSAR)