active clusters, which encouraged us to synthesize further dibenzyl-α-diphenyl-OPP derivatives that elicited pronounced cell killing. Further structure–activity relationships showed the relevance of hydrophobicity and the position of substituents on the main benzene ring as determinants of toxicity. The most active analogs proved to be equally, or even more toxic to the multidrug resistant (MDR) cell line
我们合成了取代的
苯甲醛衍生的α-羟基
膦酸酯(αOHP),α-羟基
膦酸(αOHPA)和α-膦酰氧基
膦酸酯(α
OPP),并表征了它们对一组癌
细胞系的细胞毒性。使用基于荧光的细胞毒性试验,针对Mes-Sa亲本和Mes-Sa / Dx5多药耐药子宫肉瘤
细胞系筛选了包含56个类似物的文库。细胞毒性筛选显示,二苄基-αOHP和二甲基-α
-二苯基-OPP是最活跃的簇,这鼓励我们合成进一步的二苄基-α
-二苯基-OPP衍
生物,引起明显的细胞杀伤作用。进一步的结构-活性关系显示疏
水性和主苯环上取代基的位置与毒性有关。事实证明,最活跃的类似物是同等的,