Abstract
An intramolecular Ugi reaction of 3-carboxy tethered sugar aldehyde with aryl amines and isocyanides has been accomplished to produce a novel class of carbohydrate derivatives, 3-oxo-4-aryl-octahydrofuro[2,3-f][1,4]oxazepine-5-carboxamides in good yields. The stereochemistry of the products was assigned by NMR studies. This is the first report on intramolecular Ugi reaction of 3-carboxy tethered sugar aldehyde, aryl amine, and isonitrile.
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