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Evolución de una síntesis total de (-) -kendomicina que explota una estrategia de reordenamiento

Amos B Smith¹, Eugen F Mesaros, Emmanuel A Meyer

¹Department of Chemistry, Monell Chemical Senses Center, and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. smithab@sas.upenn.edu

Journal of the American Chemical Society

|April 13, 2006

Resumen

Los investigadores lograron una síntesis total estereocontrolada de (-) -kendomicina, un producto natural complejo. Esta síntesis de 21 pasos utilizó tácticas novedosas para construir características estructurales clave, lo que permite una producción eficiente de este valioso compuesto.

Área de la Ciencia:

Química orgánica es la química orgánica.
Química sintética de la química sintética.
Síntesis de Productos Naturales.

Sus antecedentes:

(-) La kendomicina es un producto natural complejo con actividades biológicas potenciales.
La síntesis total proporciona acceso a moléculas complejas para su posterior estudio y desarrollo.
El desarrollo de rutas sintéticas eficientes y estereocontroladas es crucial en la química orgánica.

Objetivo del estudio:

Para lograr una síntesis total convergente y estereocontrolada de (-) -kendomicina.
Para establecer una ruta sintética eficiente con un número manejable de pasos.
Emplear estrategias sintéticas innovadoras para construir los complejos motivos estructurales de la molécula.

Principales métodos:

Estrategia de síntesis convergente. estrategia de síntesis convergente.
La unión/reorganización de Petasis-Ferrier para la construcción de anillos de tetrahidropirano.
Metátesis de cierre de anillo para la formación de macrociclos.
Epoxidación/desoxigenación para la isomerización de las olefinas.
Ensamblaje biomimético de quinona-metida-lactol.

Principales resultados:

Finalización exitosa de la síntesis total de la (-) -kendomicina.
La secuencia lineal más larga de la síntesis fue de 21 pasos.
Las principales características estructurales, incluidos el anillo de tetrahidropirano y el macrociclo, se construyeron de manera eficiente.
El control estereoquímico se mantuvo durante toda la síntesis.

Conclusiones:

La vía sintética desarrollada es efectiva para producir (-) -kendomicina.
Las estrategias sintéticas empleadas son aplicables a otros productos naturales complejos.
Este trabajo proporciona una valiosa base para futuras investigaciones sobre las propiedades y aplicaciones de la kendomicina.

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