Synthesis, characterization and cytotoxic activity of palladium (II) carbohydrate complexes
作者:S BHAVYA DEEPTHI、RAJIV TRIVEDI、P SUJITHA、C GANESH KUMAR、B SRIDHAR、SURESH K BHARGAVA
DOI:10.1007/s12039-012-0340-3
日期:2012.11
Carbohydrate containing pyridyl triazole ligands, 5-deoxy-1,2-O-isopropylidene-5-(4-(2-pyridyl)-1H-1,2,3-triazole-1-yl)-α-D-xylofuranose (2a), 3-O-Benzyl-5-deoxy-1,2-O-isopropylidene-5-(4-(2-pyridyl)-1H-1,2,3-triazol-1-yl)-α-D-xylofuranose (2b), methyl-5-deoxy-2,3-O-isopropylidene-5-(4-(2-pyridyl)-1H-1,2,3-triazol-1-yl)-β-D-ribofuranoside, (2c) and 6-deoxy-1,2:3,4-di-O-isopropylidene-6-(4-(2-pyridyl)-1H-1,2,3-triazol-1-yl)-α-D-galactopyranose (2d) were prepared by the ‘click’ reaction of 2-ethynyl pyridine with the corresponding azides. The palladium complexes were synthesised by the reaction of pyridyl triazole ligands with [Pd(COD)Cl2] in dichloromethane. All the compounds were characterised by NMR, IR, mass and elemental analysis. Structural characterization of the ligand 2a was done by X-ray crystallography. The ligands and complexes were tested for their cytotoxic activity on different cell lines like A549 (human alveolar adenocarcinoma cells), Neuro2a (mouse neuroblastoma cells), HeLa (cervical carcinoma cancer cells), MDA-MB-231 (human breast adenocarcinoma cells) and MCF7 (human breast adenocarcinoma cells). The complexes showed considerable cytotoxicity while the ligands were non-toxic on the tested cell lines.
含有碳水化合物的吡啶基三氮唑配体,5-脱氧-1,2-O-异亚丙基-5-(4-(2-吡啶基)-1H-1,2,3-三氮唑-1-基)-α-D-木呋喃糖(2a),3-O-苄基-5-脱氧-1,2-O-异亚丙基-5-(4-(2-吡啶基)-1H-1,2,3-三氮唑-1-基)-α-D-木呋喃糖(2b),甲基-5-脱氧-2,3-O-异亚丙基-5-(4-(2-吡啶基)-1H-1,2,3-三氮唑-1-基)-β-D-核呋喃糖苷(2c)和6-脱氧-1,2:3,4-二-O-异亚丙基-6-(4-(2-吡啶基)-1H-1,2,3-三氮唑-1-基)-α-D-半乳吡喃糖(2d),通过2-乙炔基吡啶与相应的叠氮化物进行“点击”反应制备。通过吡啶基三氮唑配体与[Pd(COD)Cl2]在二氯甲烷中的反应合成了钯配合物。所有化合物均通过NMR、IR、质谱和元素分析进行了表征。配体2a的结构通过X射线晶体学进行了表征。测试了配体和配合物对不同的细胞系的细胞毒活性,如A549(人肺泡腺癌细胞)、Neuro2a(小鼠神经母细胞瘤细胞)、HeLa(宫颈癌癌细胞)、MDA-MB-231(人乳腺癌腺癌细胞)和MCF7(人乳腺癌腺癌细胞)。配合物显示出相当的细胞毒性,而配体在对测试的细胞系中无毒。