Synthesis, In Silico and In Vitro Cytostatic Activity of New Lipophilic Derivatives of Hydroxyurea

Recent Patents on Anti-cancer Drug Discovery
Zeynab KhansefidMahdi Fasihi

Abstract

Hydroxyurea (HU) is used to treat cancer. HU has a short half-life due to its small molecular weight and high polarity, therefore a high dosage of the drug should be used which introduces side effects and more rapid development of resistance. The objective of the current study is to design new lipophilic analogues of hydroxyurea with higher stability and better cell penetration. The designed compounds were synthesized and then evaluated in terms of their cytostatic activities against two human cell lines. The synthesis of designed ligands was achieved via two-step procedure. Detail of the synthesis and chemical characterization of the analogs are described. The cytotoxic activity of the designed ligands was evaluated in vitro against two different cancer cell lines at 24 and 48h using MTT test. Based on the IC50 values, all the designed and prepared compounds were more potent than hydroxyurea at 24 and 48h on both cell lines that the cytostatic activity at 48h was more than 24h. Drug-receptor interactions study indicated compound 7 as the most potent ligand, tightly bonded to surrounding amino acids in the active site of receptor via two strong hydrogen bonds and some hydrophobic interactions. Compound 7 with the suitable volum...Continue Reading

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