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handle: 10261/31605
[EN]The invention relates to a method of preparing a wide range of hydroxytyrosol esters. According to the invention, the compounds are synthesised by reacting synthetic hydroxytyrosol or natural hydroxytyrosol compounds, oleuropein or oleuropein aglycones (which are found in olive oil, vegetable water, olive marc or olive leaves) with an acylating agent which is a compound containing at least one acylic group R, wherein R is H, an alkyl radical with between 1 and 31 linear, branched or cyclic carbon atoms, an alkenyl radical with up to 31 linear, branched or cyclic carbon atoms or an aryl group. The invention also relates to the esters prepared with the inventive method, which can be used as an additive in food and cosmetic products as well as in pharmaceutical preparations. [ES]El objeto de la presente invención es un procedimiento para la preparación de una amplia gama de ésteres de hidroxitirosol. La síntesis de los compuestos se lleva a cabo por reacción de hidroxitirosol sintético o de los compuestos naturales hidroxitirosol, oleuropeína o aglucones de la oleuropeína (que se encuentran en el aceite de oliva, alpechín, orujo de oliva u hojas de olivo) con un agente acilante que es un compuesto que contiene al menos un grupo acílico de resto R, donde R es H, un radical alquilo de entre 1 y 31 átomos de carbono, sea lineal, ramificado o cíclico, un radical alquenilo de hasta 31 átomos de carbono también lineal, ramificado o cíclico ó un grupo arilo. Los ésteres preparados mediante el procedimiento son también objeto de la invención y pueden utilizarse como aditivo en productos alimenticios y cosméticos, así como en preparaciones farmaceúticas.
Fecha de solicitud: 2.07.2003.- Tiulares: Consejo Superior de Investigaciones Científicas (CSIC).- Universidad de Sevilla.
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