Semisynthesis of ω-Hydroxyalkylcarbonate Derivatives of Hydroxytyrosol as Antitrypanosome Agents

Journal of Natural Products
Ignacio Fernandez-PastorAndres Parra

Abstract

Several lipophilic ω-hydroxyalkylcarbonate hydroxytyrosol derivatives and also their corresponding dimeric derivatives have been synthesized, coupling the primary hydroxy group of this phenolic compound with several terminal diols of different chain lengths, by the use of a carbonate linker. The trypanocidal activity and cytotoxicity of these ω-hydroxyalkylcarbonate derivatives of hydroxytyrosol and known alkylcarbonate derivatives of hydroxytyrosol were assessed. Three of the hydroxytyrosol alkylcarbonate derivatives were active against Trypanosoma brucei: two with an alkyl chain of average size (0.2 and 0.5 μM) and another with a double bond in the alkyl chain (0.4 μM). These values suggest an increase in activity with respect to hydroxytyrosol (264-, 90-, and 116-fold, respectively). Furthermore, these compounds showed high selectivity indices against MRC-5, a nontumor human cell line (62, 71, and 39, respectively). Some other ω-hydroxyalkylcarbonate and alkylcarbonate derivatives of hydroxytyrosol were also active against T. brucei within a low micromolar range (about 1 μM).

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Citations

May 30, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Ana Karković MarkovićCvijeta Jakobušić Brala

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