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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Synthesis and cytotoxicity of 2-(2 '-pyridyl)benzimidazole complexes of palladium(II) and platinum(II)
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Synthesis and cytotoxicity of 2-(2 '-pyridyl)benzimidazole complexes of palladium(II) and platinum(II)

机译:钯(II)和铂(II)的2-(2'-吡啶基)苯并咪唑配合物的合成和细胞毒性

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摘要

Compounds of type [MX2(Hpben)] [M = Pd (X = Cl), Pt (X = Cl, 1); Hpben = 2-(2'-pyridyl)benzimidazole] were prepared and characterized, and the structures of the Pt derivatives were determined by X-ray crystallography. The crystals Of [PtI2(Hpben)] consist of discrete units in which the Pt atom is coordinated to two iodine atoms and to pyridine and imidazole N atoms in a distorted square planar arrangement. The structure of the chloro, derivative is similar, except that the [PtCl2(Hpben)] monomers are hydrogen-bonded in zig-zag chains. In assays of the interactions of the Pd and Pt chloro compounds with DNA, and of their in vitro cytotoxic activity against human cervical carcinoma cells (HeLa-229), human ovarian carcinoma cells (A2780) and a cisplatin-resistant mutant A2780 line (A2780cis), the only activity observed was modest cytotoxicity of the I'd derivative for A2780.
机译:[MX2(Hpben)]型化合物[M = Pd(X = Cl),Pt(X = Cl,1);制备并表征了Hpben = 2-(2'-吡啶基)苯并咪唑],并通过X射线晶体学确定了Pt衍生物的结构。 [PtI2(Hpben)]的晶体由离散的单元组成,其中Pt原子以扭曲的正方形平面排列与两个碘原子以及吡啶和咪唑N原子配位。氯代衍生物的结构相似,不同之处在于[PtCl2(Hpben)]单体在Z字形链中氢键合。在测定Pd和Pt含氯化合物与DNA的相互作用以及它们对人宫颈癌细胞(HeLa-229),人卵巢癌细胞(A2780)和对顺铂耐药的突变型A2780系(A2780cis)的体外细胞毒活性时),观察到的唯一活性是I'd衍生物对A2780的中等细胞毒性。

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