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Síntesis de los oligosacáridos de heparina
Jinq-Chyi Lee1, Xin-An Lu, Suvarn S Kulkarni
1Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan.
Journal of the American Chemical Society
|January 15, 2004
Resumen
Los investigadores desarrollaron un nuevo método de 5 pasos para sintetizar un bloque de construcción de azúcar raro, 2-O-benzoyl-3-O-benzyl-1,6-anhydro-beta-l-idopyranose. Este intermediario clave permitió la síntesis total de varias longitudes de oligosacáridos de heparina.
Área de la Ciencia:
- Química de los carbohidratos Química de los carbohidratos
- Síntesis orgánica La síntesis orgánica.
- La glicosciencia es la ciencia de la glucosa.
Sus antecedentes:
- Los oligosacáridos de heparina son cruciales para los procesos biológicos.
- La síntesis eficiente de estructuras complejas de heparina es un desafío.
- Es difícil obtener un intermediario clave para la síntesis de heparina.
Objetivo del estudio:
- Desarrollar una ruta sintética eficiente para un bloque de construcción de heparina rara.
- Para utilizar este bloque de construcción para la síntesis total de heparina oligosacáridos.
Principales métodos:
- Preparación de la 2-O-benzoil-3-O-benzil-1,6-anhidro-beta-l-idopyranosa a partir de la diacetona alfa-d-glucosa en cinco pasos. el proceso de preparación de la 2-O-benzoil-3-O-benzil-1,6-anhidro-beta-l-idopyranosa se lleva a cabo en cinco pasos.
- Síntesis total de oligosacáridos de heparina de diferentes longitudes (3, 5, 7 y 9 unidades de azúcar).
Principales resultados:
- Se logró una síntesis eficiente de cinco pasos del bloque de construcción objetivo.
- El intermediario clave se empleó con éxito en la síntesis de oligosacáridos de heparina.
- Se sintetizaron varias longitudes de oligosacáridos de heparina.
Conclusiones:
- El método descrito proporciona una ruta eficiente a un valioso precursor de la heparina.
- Este enfoque facilita la síntesis de oligosacáridos de heparina estructuralmente definidos.
- La metodología es aplicable a la generación de diversas estructuras relacionadas con la heparina.
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