Click chemistry assembly of G-quadruplex ligands incorporating a diarylurea scaffold and triazole linkers
作者:William C. Drewe、Stephen Neidle
DOI:10.1039/b814576h
日期:——
A series of diarylurea ligands were designed to interact selectively with G-quadruplexes and were synthesised using copper(I) catalysed ‘click’ chemistry to incorporate the 1,4-substituted 1,2,3-triazole ring into the core of the ligands; the optimal ligands demonstrate a high degree of selective telomeric G-quadruplex stabilisation and are not cytotoxic in several cancer cell lines.
[EN] The invention concerns compounds of Formula (I) or a salt, solvate or pro-drug thereof. The compounds may be used in therapy, particularly anti-cancer therapy. [FR] L'invention concerne des composés de la formule (I) ou un sel, un solvate ou un promédicament de ces derniers. Les composés précités peuvent être utilisés en thérapie, en particulier dans la thérapie anticancéreuse.
Synthesis and characterization of 1H-phenanthro[9,10-d]imidazole derivatives as multifunctional agents for treatment of Alzheimer's disease
Besides, compound 9g exhibited cholinesterase inhibitory activity, with its IC50 values of 0.86 μM and 0.51 μM for acetylcholinesterase and butyrylcholinesterase, respectively. In addition, compound 9g showed good anti-oxidation effect with oxygen radical absorbance capacity (ORAC) value of 2.29. Conclusions Compound 9g was found to be a potentmulti-target-directed agent for Alzheimer'sdisease. General
背景 阿尔茨海默氏病(AD)是一种进行性神经退行性脑部疾病,其特征在于痴呆,认知障碍和记忆力减退。不同的因素都与AD的发展,如增加的水平β淀粉样蛋白(β),乙酰胆碱,金属离子解除管制,超磷酸化的tau蛋白,和氧化应激。 方法 使用了下列方法:1的有机合成ħ -phenanthro [9,10- d ]咪唑衍生物,抑制自介导的和金属诱导A的β 1-42聚集,乙酰胆碱酯酶和丁酰胆碱酯酶抑制研究,抗氧化活性研究,CD,MTT分析,透射电子显微镜,斑点图分析,凝胶电泳,蛋白质印迹和分子对接研究。 结果 我们合成并表征了一种新型的1 H-菲[9,10- d ]咪唑衍生物作为AD治疗的多功能剂。我们的研究结果表明,大多数这些衍生物表现出强烈的一个β聚集抑制作用。化合物9克有74%A β 1-42聚集抑制在10μM浓度的效果,其IC 50为自感应甲μM6.5的值β 1-42聚集。该化合物还显示的金属介导的(铜很好的抑制作用2
Stabilization of G-Quadruplex DNA by Highly Selective Ligands via Click Chemistry
作者:Adam D. Moorhouse、Ana Mafalda Santos、Mekala Gunaratnam、Michael Moore、Stephen Neidle、John E. Moses
DOI:10.1021/ja0661919
日期:2006.12.1
A series of G-quadruplex stabilizing compounds have been prepared via click chemistry employing the Cu(I)-catalyzed Huisgen reaction. These compounds were shown to bind tightly to G-quadruplex DNA even in the presence of competing high concentrations of duplex DNA. Furthermore, a modified TRAP assay has shown that some of these compounds also inhibit telomerase at low micromolar concentration.