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Síntesis simplificada de C ((sp³) -Heterospirociclos ricos en N habilitados por fotocatálisis mediada por luz visible

Nils J Flodén¹, Aaron Trowbridge¹, Darren Willcox¹

¹Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , U.K.

Journal of the American Chemical Society

|May 11, 2019

Resumen

Este estudio introduce un nuevo método de luz visible para crear espirociclos complejos que contienen nitrógeno a partir de materiales de partida simples. Esta síntesis eficiente es valiosa para descubrir nuevas pistas de drogas.

Área de la Ciencia:

Química orgánica
Química sintética
Fotocatálisis

Sus antecedentes:

Los N-heterospirociclos son andamios importantes en la química medicinal.
La síntesis eficiente de estructuras complejas ricas en C ((sp3) sigue siendo un desafío.

Objetivo del estudio:

Desarrollar una estrategia general mediada por la luz visible para la síntesis de N-heterospirociclos complejos ricos en C ((sp3).
Proporcionar una ruta simplificada a nuevos compuestos espirocíclicos para el descubrimiento de fármacos.

Principales métodos:

Fotocatálisis con luz visible utilizando un fotocatalizador de iridio (Ir) de alta reducción.
Reacción de cetonas alifáticas y aldehídos con aminas secundarias que contienen alceno.
Utilizando el 1,4-ciclohexadieno y el éster de Hantzsch como reactivos clave.

Principales resultados:

Construcción exitosa de diversos N-heterospirociclos ricos en C ((sp3).
Se ha demostrado una amplia gama de sustratos con varias cetonas, aldehídos y aminas.
La metodología ofrece un enfoque sintético simplificado y eficiente.

Conclusiones:

La estrategia de luz visible desarrollada proporciona un acceso eficiente a los complejos N-heterospirociclos.
Este método es relevante para la identificación de plomo basada en fragmentos en el descubrimiento de medicamentos.
El enfoque destaca la utilidad de la catálisis fotorredóxica en la construcción de arquitecturas moleculares intrincadas.

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