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Synthesis and Characterization of Functionalized Metal-organic Frameworks
Published on: September 5, 2014
Síntesis orientada a la diversidad de las olefinas tetrasubstituidas del tipo tamoxifeno
Kenichiro Itami1, Toshiyuki Kamei, Jun-ichi Yoshida
1Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.
Journal of the American Chemical Society
|December 4, 2003
Resumen
Un nuevo método catalizado por cobre permite la síntesis de olefinas tetrasubstituidas de tipo tamoxifeno. Este enfoque permite un control preciso de la estereoquímica y la introducción de diversos grupos arilo cruciales para la actividad antiestrogénica.
Área de la Ciencia:
- Química orgánica es la química orgánica.
- Química Medicinal La Química Medicinal es un campo de estudio de la química medicinal.
Sus antecedentes:
- El tamoxifeno es un medicamento crucial para el tratamiento del cáncer de mama receptor de estrógeno positivo.
- El desarrollo de rutas sintéticas eficientes para los análogos de tamoxifeno con propiedades sintonizables es esencial para el descubrimiento de fármacos.
Objetivo del estudio:
- Desarrollar una estrategia sintética novedosa y versátil para las olefinas tetrasubstituidas tipo tamoxifeno.
- Para permitir la fácil variación de los sustituyentes de arilo y el control de la estereoquímica para estudios de relación estructura-actividad.
Principales métodos:
- La carbomagnesiación catalizada por el cobre de los silanos de alquinyl ((2-piridil).
- Adición secuencial de yoduros de arilo para introducir diversos sustituyentes.
- Síntesis regioselectiva y estereoselectiva de las olefinas tetrasubstituidas.
Principales resultados:
- Se estableció un esquema sintético general para las olefinas tetrasubstituidas de tipo tamoxifeno.
- El método permite la preparación de una amplia gama de olefinas electrónicamente y estructuralmente diversas.
- Los grupos arilo clave, importantes para la actividad antiestrogénica, pueden variarse fácilmente de los yoduros de arilo fácilmente disponibles.
- Se puede acceder a los estereo- y regioisómeros alterando el orden de adición de yoduro de arilo.
Conclusiones:
- La carbomagnesia catalizada por Cu desarrollada ofrece un enfoque potente y flexible para sintetizar análogos del tamoxifeno.
- Este método facilita la síntesis orientada a la diversidad y la preparación de isómeros específicos para la evaluación farmacológica.
- La estrategia sintética es prometedora para el descubrimiento de nuevos compuestos anti-estrogénicos.
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