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Síntesis enantioselectiva de (-) -esclerofitina A por medio de una hidrólisis estereoconvergente de epóxido

Bin Wang¹, Armando P Ramirez, Justin J Slade

¹Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States.

Journal of the American Chemical Society

|October 30, 2010

Resumen

La síntesis total de la citotóxica (-) -esclerofitina A se logró en 13 pasos. Los pasos clave incluyeron reacciones estereoselectivas y una nueva hidrólisis de epoxido para una construcción eficiente.

Área de la Ciencia:

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

Sus antecedentes:

(-) - esclerofitina A es un producto natural citotóxico.
Su compleja estructura presenta un desafío sintético significativo.

Objetivo del estudio:

Desarrollar una síntesis total concisa y eficiente de la (-) -esclerofitina A.
Explorar nuevas metodologías sintéticas para la construcción de moléculas complejas.

Principales métodos:

Síntesis total desde el geranial.
Se utilizó la reacción estereoselectiva Oshima-Utimoto.
Empleado Shibata-Baba indio-promovió la ciclización radical.
Desarrolló una nueva hidrólisis de epóxido estereoconvergente.

Principales resultados:

Se sintetizó con éxito (-) - esclerofitina A en 13 pasos.
Demostró la utilidad de las reacciones clave en la construcción de la molécula objetivo.
Logró un alto control estéreo a lo largo de la síntesis.

Conclusiones:

La vía sintética desarrollada proporciona un acceso eficiente a la (-) -esclerofitina A.
La nueva hidrólisis de epóxido es una valiosa adición a la química orgánica sintética.
Esta síntesis destaca los avances en las metodologías estereoselectivas.

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