[(Cp′OR)RuCl(PTA)2] (Cp′OR = η5-1-alkoxy-2,4-di-tert-butyl-3-neopentylcyclopentadienyl; R = Me, Et; PTA = 1,3,5-triaza-7-phosphaadamantane) are considerably more cytotoxic (ca. 2 orders of magnitude) than the cyclopentadienyl analogue [CpRuCl(PTA)2] (i.e., IC50 = 4−10 vs >1000 µM, depending on the cell line). The structure of [(Cp′OMe)RuCl(PTA)2] is reported, together with that of the precursor [(Cp′OEt)Ru(μ-Cl)]2
                                    水溶性配合物[(Cp'OR)的RuCl(
PTA)2 ](Cp'OR =η 5 -1-烷氧基-2,4-二-叔丁基-3-新戊基; R =甲基,乙基; 
PTA = 1,3,5-三氮杂-7-
磷酸金刚烷)比
环戊二烯基类似物[CpRuCl(
PTA)2 ]具有更大的细胞毒性(约2个数量级)(即IC 50 = 4-10 vs> 1000 µM,取决于
细胞系)。报告了[(Cp'OMe)RuCl(
PTA)2 ]的结构以及前体[(Cp'OEt)Ru(μ-Cl)] 2的结构。