Preparation, Characterization, DNA Binding, and <i>in Vitro</i> Cytotoxicity of the Enantiomers of the Platinum(II) Complexes <i>N</i>-Methyl-, <i>N</i>-Ethyl- and <i>N</i>,<i>N</i>-Dimethyl-(<i>R</i>)- and -(<i>S</i>)-3-aminohexahydroazepinedichloroplatinum(II)
作者:Evonne M. Rezler、Ronald R. Fenton、Warren J. Esdale、Mark J. McKeage、Pamela J. Russell、Trevor W. Hambley
DOI:10.1021/jm960854n
日期:1997.10.1
A series of chiral diaminedichloroplatinum(II) complexes derived from [Pt(ahaz)Cl2] (ahaz = 3-aminohexahydroazepine) have been synthesized and tested for cytotoxic activity. Novel synthetic pathways were developed to produce the structural derivatives of the ahaz ligand, with alkyl substituents on the exocyclic nitrogen atom. The platinum(II) complexes of these ligands were synthesized and characterized
合成了一系列衍生自[Pt(ahaz)Cl2](ahaz = 3-aminohexahydroazepine)的手性二胺二氯铂(II)配合物,并测试了其细胞毒活性。开发了新的合成途径以产生ahaz配体的结构衍生物,在环外氮原子上具有烷基取代基。合成了这些配体的铂(II)配合物,并通过NMR和CD光谱进行了表征,确认了异构体和对映体的纯度。这些复合物中的三种,[Pt(S-meahaz)-Cl2],[Pt(R-etahaz)Cl2]和[Pt(S-dimeahaz)Cl2]的晶体结构(meahaz = N-甲基ahaz,etahaz = N (2-乙基ahaz,dimeahaz = N,N-二甲基ahaz),已确定在氮供体原子上确定质子和烷基取代基的取向。复合物的细胞毒性活性的体外测定显示出显着且可重现的对映选择性趋势,其中在所有细胞系中,R-对映体比S-对映体更具活性。发现增加胺基上的空间体积对活性仅具有适度的影响。在R-和S-