The reaction of the five-membered C,N-palladacycle [(L)PdCl]2, where LH = 1-methyl-5-phenyl-1H-1,4-benzodiazepin-2(3H)-one, with 1,2-ethanebis(diphenylphosphine), dppe, leads to the formation of the bridged palladacycle. [Pd2L2(μ-dppe)Cl2] 3, which was characterised in solution by 1H and 31P NMR spectroscopy and in the solid state by X-ray crystallography. Complex 3 was tested in vitro against a number of cell lines. For example, it inhibited K562 leukaemia cells with an IC50 value of 4.3 μM (1 h exposure) and displayed cathepsin B inhibitory action with an IC50 value of 3 μM.
五元 C,N-
钯环 [(L)PdCl]2(其中 LH = 1-甲基-5-苯基-1H-1,4-苯二氮卓-2(3H)-一)与 1,2 的反应-
乙烷双(
二苯基膦),dppe,导致桥联
钯环的形成。 [Pd2
L2(μ-dppe)C
L2] 3,其在溶液中通过 1H 和 31P NMR 光谱进行表征,在固态中通过 X 射线晶体学进行表征。复合物 3 针对多种
细胞系进行了体外测试。例如,它抑制 K562 白血病细胞,IC50 值为 4.3 μM(暴露 1 小时),并显示组织
蛋白酶 B 抑制作用,IC50 值为 3 μM。