[Pt(en)(C2H4(NMeCSNMe2)2-S,S')](2+) | 202281-39-8

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: [Pt(en)(C2H4(NMeCSNMe2)2-S,S')](2+)
• CAS: 202281-39-8
• 化学式: C₁₂H₃₀N₆PtS₂
• 分子量: 517.622
• InChiKey: BTXCNYFKLLRRBS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  bis[chloro(1,2-ethanediamine-κ(2)N,N')platinum(II)]-μ-[1,1,3-trimethyl-3-(2-(1,3,3-trimethylthioureido)ethyl)thiourea-.kappa(2)S,S'](2+) dinitrate 以 重水 为溶剂， 生成 乙二胺氯化铂(II) 、 [Pt(en)(C2H4(NMeCSNMe2)2-S,S')](2+)
  参考文献：
  名称：

  Modification of Platinum(II) Antitumor Complexes with Sulfur Ligands. 2. Reactivity and Nucleotide Binding Properties of Cationic Complexes of the Types [PtCl(diamine)(L)]NO₃ and [{PtCl(diamine)}₂(L-L)](NO₃)₂ (L = Monofunctional Thiourea Derivative; L-L = Bifunctional Thiourea Derivative) in Relation to Their Cytotoxicity

  摘要：

  The reactions of [PtCl(en)(tmtu)]NO3 (1) and [PtCl(dach)(tmtu)]NO3 (2) (en = 1,2-ethanediamine, dach = racemic trans-1,2-cyclohexanediamine, tmtu = 1,1,3,3-tetramethylthiourea) and [{Pt(en)Cl}(2){mu-C2H4(NMeCSNMe2)(2)-S,S}](NO3)(2) (3) and [{Pt(en)Cl}(2){mu-C6H12(NMeCSNMe2)(2-)S,S'}](NO3)(2) . 0.5EtOH (4) with 5'-GMP and r(GpG) and their chemistry in aqueous solution have been investigated by H-1 and Pt-195 NMR spectroscopy. 1 and 2 only form the monofunctional adducts [Pt(en)(5'-GMP-N7)(tmtu)] (I) and [Pt(dach)(5'-GMP-NT)(tmtu)] (II), irrespective of an excess of free nucleotide. Pt-195 NMR chemical shifts of -3003 and -2982 ppm, respectively, confirm a [N3S] mixed-donor environment of platinum. The bulky tmtu ligand in 1 and 2 decreases the rate of hydrolysis of the Pt-Cl bond and the rate of nucleotide binding compared to analogous reactions for cisplatin and structural analogues. The dinuclear complexes 3 and 4 exhibit an unusual rapid intramolecular disproportionation in solution (t(1/2) = 2.5 and 12 h, respectively) which yields [PtCl2(en)] and [Pt(en)(L-L)](2+) (L-L = chelating bifunctional thiourea derivative; delta(Pt) -3454 with L-L = C2H4(NMeCSNMe2)(2)). Accordingly, 3 forms the mononuclear adducts [Pt(en)(5'-GMP-N7)(2)] (III) and [Pt(en){r(GpG)-N7(1),N7(2)}] (IV). Due to the considerably slower rate of decomposition, I gives both the dinuclear adduct [{Pt(en)}(2){mu-C6H12(NMeCSNMe2)(2)}{mu-r(GpG)-N7(1),N7(2)}] (V) (70%) and IV (30%). The 5' sugar residue of r(GpG) in IV exhibits an N-type conformation, as commonly observed in bifunctional adducts that are formed between Pt(II) antitumor complexes and dinucleotides. The absence of this structural feature in V supports the formation of a conformationally less restricted macrochelate. Cytotoxicity data for 1-4 in L1210 leukemia are in accordance with the nucleotide-binding properties of 1 and 2 and the aqueous solution chemistry of the dinuclear compounds 3 and 4. The results indicate that structurally modified thiourea ligands may be interesting for their use as alternative, strongly coordinating carrier groups in platinum(II) antitumor complexes.

  DOI：

  10.1021/ic970421q