Synthesis of a constrained polyfunctional bicyclic iminocyclitol scaffold from l-sorbose via a tandem sequence including stereoselective intramolecular Huisgen cycloaddition
作者:Ciaran O’Reilly、Colin O’Brien、Paul V. Murphy
DOI:10.1016/j.tetlet.2009.05.060
日期:2009.8
The synthesis of a functionalized (azido, amino, and hydroxy) 8-oxa-3-azabicyclo[3.2.1]octane framework and its conversion into a protected sugar amino acid and a tricyclic framework is described. The sequence includes a one-pot Huisgen 1,3-dipolar cycloaddition, with decomposition to an aziridine and subsequent ringopening by azide. The stereoselectivity observed in the Huisgen cycloaddition reaction