3,4-Disubstituted-1,2,3,4,5,6,7,8-octahydroquinazoline-2-thiones: Synthesis, Antimicrobial Evaluation and QSAR Investigations Using Hansch Analysis
作者:Maninder Minu、Ananda Thangadurai、Sharad R. Wakode、Shyam S. Agrawal、Balasubramanian Narasimhan
DOI:10.1002/ardp.200700153
日期:2008.4
studies by Hansch analysis applied to find out the correlation between physicochemical characteristics of synthesized compounds with antimicrobial activity demonstrated the contribution of electronic parameter, total energy (Te) and the topological parameter (valence second order molecular connectivity index (2χv)). Excellent statistically significant models were developed by Hansch approach (r2 = 0.828–0
合成了3,4-二取代-1,2,3,4,5,6,7,8-八氢喹唑啉-2-硫酮衍生物,并通过理化和光谱手段对其进行了表征,并对这些化合物的抗菌研究结果金黄色葡萄球菌、大肠杆菌和白色念珠菌通过试管稀释法表明 4-(4-氯苯基)-3-(4-硝基苯磺酰基)-1,2,3,4,5,6,7,8-八氢喹唑啉-2 -硫酮6和4-(4-氟苯基)-3-(4-硝基苯磺酰基)-1,2,3,4,5,6,7,8-八氢喹唑啉-2-硫酮12是最有潜力的。此外,Hansch 分析的 QSAR 研究用于找出合成化合物的理化特性与抗菌活性之间的相关性,证明了电子参数的贡献,总能量(Te)和拓扑参数(价二阶分子连接指数(2xv))。通过 Hansch 方法 (r2 = 0.828-0.898) 为所研究的三种微生物开发了具有统计学意义的优秀模型。交叉验证的 r2 (q2) 表明模型对所有案例的预测能力也非常好 (q2 = 0.776-0