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Ivorenolide A, un macrólido inmunosupresor sin precedentes de Khaya ivorensis: aclaración estructural y síntesis

Bo Zhang¹, Yao Wang, Sheng-Ping Yang

¹State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, P. R. China.

Journal of the American Chemical Society

|December 11, 2012

Resumen

Ivorenolide A, un nuevo macrolide de Khaya ivorensis, fue sintetizado y caracterizado. Este compuesto y su enantiómero demostraron una actividad inmunosupresora potente y selectiva, ofreciendo potenciales aplicaciones terapéuticas.

Área de la Ciencia:

Química de Productos Naturales Química de Productos Naturales
Síntesis orgánica La síntesis orgánica.
Inmunología Inmunología.

Sus antecedentes:

Khaya ivorensis es una fuente de productos naturales bioactivos.
Los macrolidos son una clase de compuestos con diversas actividades biológicas.
Los agentes inmunosupresores son cruciales para el tratamiento de enfermedades autoinmunes y la prevención del rechazo del trasplante.

Objetivo del estudio:

Para aislar y dilucidar la estructura de un nuevo macrolido de Khaya ivorensis.
Para lograr la síntesis total del macrolido aislado.
Evaluar el potencial inmunosupresor del producto natural y su enantiómero.

Principales métodos:

Aislamiento y purificación de productos naturales.
Análisis espectroscópico (NMR, MS) para la determinación estructural.
Difracción de rayos X de un solo cristal.
Síntesis total bioinspirada. síntesis total bioinspirada.
Ensayos in vitro para la actividad inmunosupresora.

Principales resultados:

Aislamiento de Ivorenolide A (1), un macrolido de 18 miembros con enlaces acetilénicos conjugados y cinco centros quirales.
Elucidación estructural completa de Ivorenolide A. Elucidación estructural completa de Ivorenolide A. Elucidación estructural completa de Ivorenolide A.
El éxito bioinspirado de la síntesis total de Ivorenolide A.
Demostración de actividad inmunosupresora potente y selectiva tanto para Ivorenolide A como para su enantiómero sintético (2).

Conclusiones:

Ivorenolide A es un nuevo macrolide con un motivo estructural único.
La síntesis total valida la estructura propuesta y proporciona acceso a análogos.
Ivorenolide A y su enantiómero representan perspectivas prometedoras para el desarrollo de nuevas terapias inmunosupresoras.

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