Synthesis of Dibenzoylmethane Derivaives and Inhibition of Mutagenicity in Salmonella typhimurium.
作者:Tominari CHOSHI、Shigenori HORIMOTO、Ching Y. WANG、Hisamitsu NAGASE、Masataka ICHIKAWA、Eiichi SUGINO、Satoshi HIBINO
DOI:10.1248/cpb.40.1047
日期:——
Twenty dibenzoylmethanes with methyl, methoxy, bromo, chloro, or fluoro substitution on either one or both benzene rings were synthesized and assayed for inhibition of the mutagenicity of 2-nitrofluorene in S. typhimurium TA98. 2, 2-Dimethoxy, 3, 3-dimethoxy and 3, 3, 4, 4-tetramethoxydibenzoylmethane was as active as dibenzoylmethane. None of the halogen-substituted dibenzoylmethanes were active. These results demonstrate that dibenzoylmethanes can inhibit the mutagenicity of 2-nitrofluorene, and that modifications made on the benzene rings of dibenzoylmethane cannot enhance the antimutagencity of this parent compound.
合成了20种二苯甲酰甲烷,它们在一个或两个苯环上分别带有甲基、甲氧基、溴、氯或氟取代基,并测定了它们对S. typhimurium TA98株2-硝基芴致突变性的抑制作用。2,2-二甲氧基、3,3-二甲氧基和3,3,4,4-四甲氧基二苯甲酰甲烷与二苯甲酰甲烷同样有效。所有含卤素取代的二苯甲酰甲烷均无效。这些结果表明二苯甲酰甲烷能抑制2-硝基芴的致突变性,在二苯甲酰甲烷的苯环上作修饰并不能增强其母体化合物的抗致突变性。