Studies on chemical carcinogens. XXI. Quantitative structure-mutagenicity relationship among substituted styrene oxides.
作者:NOBUYA TAMURA、KAZUHIKO TAKAHASHI、NAOHIRO SHIRAI、YUTAKA KAWAZOE
DOI:10.1248/cpb.30.1393
日期:——
The quantitative structure-mutagenicity relationship among 8 substituted styrene oxides, p-methyl-, p-butyl, p-phenyl, p-chloro, m-chloro, p-cyano, p-nitro, and the parent styrene oxide, was examined. Mutagenic and cytocidal activities were correlated with the reactivity of the epoxide (Hammett's σ), the van der Waals volume of the molecule (VW), and/or the partition parameter (π). Multiple regression analyses revealed that mutagenic capacity could be well described by a linear combination of σ and log VW and that cytocidal capacity depended only on π of the derivatives, as already reported by Sugiura et al.
对8种取代苯乙烯氧化物(对甲基、对丁基、对苯基、对氯、间氯、对氰基、对硝基及母体苯乙烯氧化物)的定量结构-诱变性关系进行了研究。诱变活性及细胞杀伤活性与环氧化物的反应性(Hammett's σ值)、分子范德华体积(VW)以及/或者分配参数(π)相关联。多重回归分析揭示,诱变能力可以良好地用σ和log VW的线性组合来描述,而细胞杀伤能力仅依赖于衍生物的π值,这一结论已由Sugiura等人报道。