Computational approach to drug design for oxazolidinones as antibacterial agents.
A three dimensional Quantitative Structure Activity Relationship (3D-QSAR) model for a series of (S)-3-Aryl-5-substituted oxazolidinones was developed to gain insights into the design for potential new antibacterial agents. It was found that the Comparative Molecular Field Analysis (CoMFA) method yielded good results while the Comparative Molecular Similarity Indices Analysis (CoMSIA) was less satisfactory. The CoMFA method yielded a cross-validated correlation coefficient q(2) = 0.681, non-cross-validated R(2) = 0.991, SE (Standard Error ) = 0.054, and the value of statistical significance measure F = 266.98. The relative steric and electrostatic contributions are 0.542 and 0.458, respectively. These results indicate that the model possesses a high predictivity. Guided by this model, three new compounds were synthesized. All these compounds exhibit inhibitory activity; two of them were shown having high activity (MIC = 1.0 microg/ml). The activity observed by experiments was in good agreement with the theoretical one. It is anticipated that the present model would be of value in facilitating design of new potent antibacterial agents.
Li
Yun
Y
College of Life Sciences and Biotechnology, Shanghai Jiaotong University, 800 Donglin Road, Minhang District, Shanghai 200030, China.
Wei
Dong-Qing
DQ
Gao
Wei-Na
WN
Gao
Hui
H
Liu
Bing-Ni
BN
Huang
Chang-Jiang
CJ
Xu
Wei-Ren
WR
Liu
Deng-Ke
DK
Chen
Hai-Feng
HF
Chou
Kuo-Chen
KC
D000900:Anti-Bacterial Agents / Q000737:chemistry*; D015195:Drug Design; D008826:Microbial Sensitivity Tests; D008958:Models, Molecular; D008968:Molecular Conformation; D023303:Oxazolidinones / Q000737:chemistry* / Q000494:pharmacology; D021281:Quantitative Structure-Activity Relationship; D055672:Static Electricity
D000900:Anti-Bacterial Agents; D023303:Oxazolidinones