Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, United States.
J Inorg Biochem. 2010 Nov;104(11):1205-13. doi: 10.1016/j.jinorgbio.2010.07.010. Epub 2010 Jul 23.
An investigation of the reaction of Pd(II) complexes with proflavine (3,6-diaminoacridine) resulted in the isolation of the compounds Pd(terpy)(proflavine)(HSO(4))*3H(2)O, 1, (terpy = 2,2':6',2″-terpyridine), Pd(en)(proflavineH))(SO(4)), 2, (en = ethylenediamine), and Pd(proflavineH)Cl(2)(0.5)*H(2)O, 3. They have been isolated and characterized by NMR, IR, and electro-spray ionization mass spectrometry techniques and by elemental analyses. The proflavine was bonded to the Pd(II) through the endocyclic nitrogen in 1, but through the proflavine NH(2) in 2. Compound 3 appeared to be polymeric in the solid state with a 1:1 mole ratio of Pd(II):proflavine. Upon solution of 3 in DMSO, two unique species were formed. In one species the Pd(II) was bonded to two proflavines through the endocyclic nitrogen (1:2 mole ratio) and in the other species, a Pd(II) was bonded to each NH(2) group of a single proflavine (2:1 mole ratio). Molecular modeling of the equilibrium geometry by Spartan 8 produced structures which were consistent with the experimental data on the solutions of the three compounds. In vitro cytotoxicity testing against two breast cancer cell lines and one ovarian cancer cell line showed that compounds 1 and 3 had significant activity.
钯（II）配合物与吖啶黄素（3,6-二氨基吖啶）的反应研究导致了化合物[Pd（terpy）（吖啶黄素）]（NO 3 ）（HSO 4 ）*3H 2 O，1，（terpy = 2,2':6',2″-三联吡啶），[Pd（en）（吖啶黄素 H）]（NO 3 ）（SO 4 ），2，（en = 乙二胺）和[Pd（吖啶黄素 H）Cl（2 ）]（SO 4 ）（0.5）*H 2 O，3 的分离和鉴定。它们已通过 NMR、IR 和电喷雾电离质谱技术以及元素分析进行了分离和鉴定。吖啶黄素通过 1 中的内环氮与 Pd（II）键合，但通过 2 中的吖啶黄素 NH 2 键合。化合物 3 在固态中似乎是聚合的，Pd（II）：吖啶黄素的摩尔比为 1:1。当 3 在 DMSO 中溶解时，形成了两种独特的物种。在一种物种中，Pd（II）通过内环氮与两个吖啶黄素键合（1:2 摩尔比），在另一种物种中，Pd（II）与单个吖啶黄素的每个 NH 2 基团键合（2:1 摩尔比）。 Spartan 8 通过分子建模计算出的平衡几何结构与三种化合物溶液的实验数据一致。对两种乳腺癌细胞系和一种卵巢癌细胞系的体外细胞毒性测试表明，化合物 1 和 3 具有显著的活性。
