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Desbloqueo P(V): reactivos para la síntesis de fosfato quiral
Kyle W Knouse1, Justine N deGruyter1, Michael A Schmidt2
1Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
Science (New York, N.Y.)
|August 4, 2018
Resumen
Los investigadores desarrollaron un nuevo método basado en el fósforo (V) para sintetizar nucleótidos fosforioatos, cruciales para las terapias de oligonucleótidos antisenso y la síntesis de dinucleótidos cíclicos. Este enfoque ofrece una alternativa estereocontrolada, eficiente y más simple a los métodos existentes de fósforo.
Área de la Ciencia:
- Química medicinal
- Síntesis orgánica
- Química de los ácidos nucleicos
Sus antecedentes:
- Los nucleótidos de fosforotioato son análogos vitales de los fosfodiésteros nativos con aplicaciones en terapias de oligonucleótidos antisenso (ASO) y en la síntesis de dinucleótidos cíclicos (CDN).
- Los métodos actuales para la síntesis estereocontrolada de los fosforioatos se basan en los reactivos de fósforo, lo que limita la eficiencia y el control.
Objetivo del estudio:
- Introducir una nueva plataforma de reactivos a base de fósforo para la síntesis estereocontrolada de nucleótidos de fosfato.
- Demostrar un método programable, sin rastros y diastereoselectivo para la incorporación de fósforo y azufre.
Principales métodos:
- Desarrollo de un nuevo sistema de reactivos basados en fósforo para la modificación de nucleósidos.
- Aplicación del sistema de reactivos a la síntesis de varias arquitecturas nucleotídicas, incluidas las ASO y las CDN.
- Análisis estereoquímico y validación de los compuestos sintetizados.
Principales resultados:
- Demostración exitosa de una plataforma basada en P (V) para la incorporación de fósforo y azufre programable, sin rastro y diastereoselectiva.
- Síntesis robusta y estereocontrolada de diversas estructuras nucleotídicas, incluidas las ASO y las CDN.
- El protocolo desarrollado es eficiente, económico y sencillo de operar.
Conclusiones:
- La nueva plataforma de reactivos basados en P (V) proporciona un avance significativo en la síntesis estereocontrolada de nucleótidos de fosfato.
- Este método supera las limitaciones de los enfoques basados en P (III), ofreciendo una ruta más accesible para el desarrollo terapéutico de oligonucleótidos y CDN.
- La eficiencia y simplicidad del protocolo facilitan aplicaciones más amplias en la investigación y el desarrollo farmacéuticos.
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