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Synthesis and characterization of complexes of the {ReO}3+ core with SNS and S donor ligands

机译:{ReO} 3+核与SNS和S供体配体的配合物的合成与表征

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摘要

The reaction of [ReOCl3(PPh3)2] with N,N-bis(2-mercaptoethyl)benzylamine and 4-bromobenzenethiol allowed for the isolation of [ReO{η3-(SCH2CH2)2N(CH2C6H5)}-(η1-C6H4Br-4-S)] (>1). The reaction of [ReOCl3(PPh3)2] with [(HSCH2CH2)2N(CH2C5H4N)] and the appropriate thiol in chloroform treated with triethylamine has led to the isolation of a series of neutral rhenium complexes of the type [ReO{η3-(SCH2CH2)2N(CH2C5H4N)}(η1-C6H4X-4-S)] (X = Br (>2), Cl (>3), F (>4), and OCH3 (>5)) and [ReO{η3-(SCH2CH2)2N(CH2C5H4N)}(η1-C6H4OCH3-4-CH2S)] (>6). Likewise, under similar reaction conditions, the use of the related tridentate ligand, [(HSCH2CH2)2N(CH2CH2C5H4N)], has led to the isolation of a series of rhenium complexes of the type [ReO{η3-(SCH2CH2)2N(CH2CH2C5H4N)}(η1-C6H4X-4-S)] (X=Br (>7), Cl (>8), OCH3 (>9)), as well as [ReO{η3-(SCH2CH2)2N(CH2CH2C5H4N)}(η1-C6H4Cl-4-CH2S)]·0.5CH3(CH2)4CH3 (>10). These compounds are extensions of the ‘3+1’ approach to the synthesis of materials with the {MO}3+ core (M=Tc and Re), which have applications in nuclear medicine. The ligands chosen allow systematic exploration of the consequences of para-substitution on the monodentate thiolate ligand [S] and of derivatization of the substituent R on the tridentate aminodithiol ligand [SNS] of the type (HSCH2CH2)2NR. Such modifications can influence lipophilicity, charge, size and molecular weight of the complex and consequently the biodistribution.
机译:[ReOCl3(PPh3)2]与N,N-双(2-巯基乙基)苄胺和4-溴苯硫醇的反应可分离[ReO {η 3 -(SCH2CH2)2N(CH2C6H5) )}-(η 1 -C6H4Br-4-S)](> 1 )。 [ReOCl3(PPh3)2]与[(HSCH2CH2) 2 N(CH 2 C 5 H 4 N)]和三乙胺处理的氯仿中适当的硫醇导致分离出一系列[ReO {η 3 -(SCH 2 CH 2 2 N(CH 2 C 5 H 4 N )}(η 1 -C 6 H 4 X-4-S)](X = Br(> 2 ),Cl(> 3 ),F(> 4 )和OCH 3 (> 5 ))和[ ReO {η 3 -(SCH 2 CH 2 2 N(CH 2 C 5 H 4 N)}(η 1 -C 6 H 4 OCH 3 -4-CH 2 S)](> 6 )。同样,在相似的反应条件下,使用相关的三齿配体[[HSCH 2 CH 2 ] 2 N(CH 2 CH 2 C 5 H 4 N)],导致分离出一系列这种类型的rh配合物[ReO {η 3 -(SCH 2 CH 2 2 N(CH 2 CH 2 C 5 H 4 N)}(η 1 -C 6 H 4 X-4-S)](X = Br(> 7 ),Cl(> 8 ),OCH 3 (> 9 )),以及[ReO {η 3 -(SCH 2 CH 2 2 N(CH 2 CH 2 C 5 H 4 N) }(η 1 -C 6 H 4 Cl-4-CH 2 S)]·0.5CH < sub> 3 (CH 2 4 CH 3 (> 10 )。这些化合物是“ 3 + 1”方法的扩展,用于合成具有{MO} 3 + 核(M = Tc和Re)的材料,已在核医学中得到应用。选择的配体可以系统地研究单齿硫醇盐配体[S]上对位取代的后果以及三齿氨基二硫醇配体[SNS](HSCH 2 CH)类型上取代基R的衍生化 2 2 NR。这样的修饰可影响复合物的亲脂性,电荷,大小和分子量,并因此影响生物分布。

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