European journal of medicinal chemistry · 2014
Gold(I) complexes with alkylated PTA (1,3,5-triaza-7-phosphaadamantane) phosphanes as anticancer metallodrugs.
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García-Moreno Elena, Gascón Sonia, Atrián-Blasco Elena, Rodriguez-Yoldi M Jesus, Cerrada Elena, Laguna Mariano
Аннотация
New stable thiolate gold(I) derivatives containing the alkylated phosphanes [PTA-CH2Ph]Br and [PTA-CH2COOMe]Br derived from 1,3,5-triaza-7-phosphaadamantane (PTA) have been prepared by different routes of synthesis. By the use of basic media to deprotonate the corresponding thiol in the former and by transmetallation reactions from tin (IV) complexes, in the later, thus avoiding side reactions on the phosphane. Strong antiproliferative effects are observed for most of the compounds, including the chloro- and bromo precursors with the series of phosphanes derived from PTA, in human colon cancer cell lines (Caco-2, PD7 and TC7 clones). Apoptosis-induced cell death is found for all compounds, being the thiolate derivatives with [PTA-CH2Ph]Br the most effective, as shown by an annexin-V/propidium iodide double-staining assay.