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取代芳烃对剑尾鱼和稀有鮈鲫的生物活性模型
The Bioactivity Models of Substituted Aromatics to Sword Fish (Xiphophorus Felleri) and Rare Minnow(Gobiocypris)
【摘要】 非氢原子的原子参数(gi)定义为:gi=(ni-1)0.5.mi.(tcti)αi-(-1)hi+ki(1+k2i)hβii.基于gi建构新的拓扑指数mL,并研究了含有Cl、OH、NO2、烷基等基团的取代芳烃急性毒性的定量构效关系(QSAR).这些化合物对剑尾鱼、稀有鲫的半数致死浓度(-lgLC50)与0阶指数(0L)的线性方程分别为:-lgLC50=-0.949 9+0.030 60L,-lgLC50′=-1.165 8+0.035 40L,它们的计算值与相应实验值颇为接近.
【Abstract】 An atomic parameter(gi) for non-hydrogen atom i is defined as:gi=(ni-1)0.5·mi·(tcti)αi-((-1)hi+ki(1+k2i)hβii.)A novel topological index(mL) is built up with(gi)in this paper.The quantitative structure-activity relationships(QSAR) studies are performed in relation to the acute toxicitiea and 0L of substituted aromatic compounds(with substituents(Cl)(),(OH)(),(NO2)() and alkyl).The linear regression models between the 96h-LC50 and 0L of the compounds to aquatic organisms are proposed as follows:(1) sword fist-lg LC50=-0.949 9+(0.0306 0L,R=0.977 4;)(2) rare minnow-lg LC50′=-1.165 8+0.035 40L,R=0.995 4.The values calculated by the models are basically true as the experiment values.
【Key words】 quantitative structure-activity relationship; substituted aromatic; acute toxicity; sword fish; rare minnow;
- 【文献出处】 吉首大学学报(自然科学版) ,Journal of Jishou University(Natural Sciences Edition) , 编辑部邮箱 ,2006年05期
- 【分类号】X174
- 【被引频次】4
- 【下载频次】147