作者:Mine Yarim、Meric Koksal、Dirk Schepmann、Bernard Wünsch
DOI:10.1111/j.1747-0285.2011.01215.x
日期:2011.11
To investigate the molecular features involved in sigma (σ) receptors binding, a series of compounds based on indole scaffolds were synthesized and their chemical structures were confirmed by 1H‐NMR, IR, and elemental analysis. Their affinity toward σ1 and σ2 receptor subtypes was evaluated. 1‐[4‐(2‐phenylethyl)piperazin‐1‐yl]methyl}‐3‐methyl‐1H‐indole 3b had a high affinity to σ1 receptors, while three compounds, 1‐3‐[4‐(substitutedphenyl)piperazin‐1‐yl]propyl}‐1H‐indole derivatives 4a–c had shown high affinity and selectivity for σ2 receptors. Cytotoxicity of the compounds was demonstrated on cancer cell lines from liver (HUH7), breast (MCF7), and colon (HCT‐116) cancer cell lines. Compound 1c (3‐[4‐(3,4‐dichlorobenzyl)piperazin‐1‐yl]methyl}‐1H‐indole) showed significant cell growth inhibitory activity on the selected cancer cell lines.