Synthesis and radiolabelling of Re(CO)3-β-elemene derivatives as potential therapeutic radiopharmaceuticals

Autor: Guifeng Liu, Yu-Mei Shen, Yanhong Sun, Yunfeng Ren, Kangmin Cheng
Rok vydání: 2009
Předmět:
Zdroj: Journal of Labelled Compounds and Radiopharmaceuticals. 52:139-145
ISSN: 1099-1344
0362-4803
Popis: β-Elemene, (1S, 2S, 4R)-(−)-(1-methy-1-vinyl-2,4-diisopropenyl cyclohexane) is an anticancer agent from the Traditional Chinese Herb Medicinal. Three novel Re(CO)3-β-elemene derivatives including their radioactive conjugates containing N,N,N tridentate ligands and tricarbonyl rhenium (complex 12, 13, 14) were synthesized. Their structures were characterized by infrared (IR), 1H-NMR and HRMS. Good radioactive yield (above 90%) and radioactive chemical purity with Re-188 (above 95%) were obtained for all of the three derivatives (complex 15, 16, 17). The antiproliferative activity of non-radioactive β-elemene-Re(CO)3 derivatives on Lewis lung cancer cells and HeLa cell lines were evaluated by WST-1 methods. The result shows substantial decrease in IC50 values compared with the parent compound β-elemene. The synthesis and radiosynthesis of β-elemene tricarbonyl rhenium conjugates provide the possibility to find a new kind of potential radiopharmaceuticals on β-elemene. Copyright © 2009 John Wiley & Sons, Ltd.
Databáze: OpenAIRE