Estimation of the hydrophobicity of 2,4-diphenyl-1,3-oxazoline analogs and QSAR analysis of their ovicidal activity against Tetranycus urticae
作者:Chieka Minakuchi、Junji Suzuki、Kazuya Toda、Miki Akamatsu、Yoshiaki Nakagawa
DOI:10.1016/j.bmcl.2006.04.089
日期:2006.8
2-(substituted phenyl)-1,3-oxazoline analogs were empirically estimated from the corresponding substituted benzamides. The ovicidal activity of 2-(substituted phenyl)-4-phenyl-1,3-oxazoline analogs against the two-spotted spider mite Tetranychus [corrected] urticae was quantitatively analyzed using the classical QSAR (Hansch-Fujita) method. Results showed that ovicidal activity increases with hydrophobicity
六个包含2-I,2-NO2、2-CF3、2,6-(CH3)2、2,6-F2和2-F-6-Cl的2-苯基-1,3-恶唑啉同类物的分配系数使用摇瓶摇动法在1-辛醇/水系统中测量苯基部分的取代基。对2-苯基-1,3-恶唑啉的苯基部分上的取代基的疏水性(LogP)的影响与苯甲酰胺同类物线性相关。从相应的取代的苯甲酰胺凭经验估计其他2-(取代的苯基)-1,3-恶唑啉类似物的logP值。使用经典的QSAR(Hansch-Fujita)方法定量分析了2-(取代的苯基)-4-苯基-1,3-恶唑啉类似物对两斑叶螨Tetranychus [校正的]荨麻疹的杀卵活性。结果表明,杀卵活性随疏水性的增加而增加。在邻位引入吸电子基团增加了杀卵活性,但增加空间位阻是不利的。在间位或对位处的取代对杀螨活性是有害的。