Efficient synthesis of oligosaccharyl 1,2-O-orthoesters from n-pentenyl glycosides and application to the pentaarabinofuranoside of the mycobacterial cell surface

Autor: Srinivas Hotha, Shivaji A. Thadke
Rok vydání: 2014
Předmět:
Zdroj: Org. Biomol. Chem.. 12:9914-9920
ISSN: 1477-0539
1477-0520
DOI: 10.1039/c4ob01395f
Popis: Complex oligosaccharide syntheses employ the use of more than one glycosyl donor and hence, methods for the interconversion of glycosyl donors are highly valuable for the overall synthesis plan. Herein, n-pentenyl glycosides are efficiently converted to glycosyl 1,2-O-orthoesters in the presence of both acid and base sensitive functional groups. The identified protocol was found to be suitable for the synthesis of trisaccharyl and tetrasaccharyl 1,2-O-orthoester as well. Furthermore, an iterative synthesis of pentaarabinofuranoside present on the Mycobacterium tuberculosis cell surface was accomplished using this method.
Databáze: OpenAIRE