A versatile strategy for the synthesis of N-linked glycoamino acids from glycals
作者:Vipin Kumar、Namakkal G. Ramesh
DOI:10.1039/b712841j
日期:——
readily available glycals is reported. A variety of glycals possessing different carbohydrate templates (mono-, di- and trisaccharide glycals) were shown to undergo a novel iodine catalyzed stereoselective diamination reaction with chloramine-T. Taking advantage of the difference in the reactivity between the anomeric and C2 sulfonamido groups of these diamines 7, 13, 15, 17 and 19, they could be protected
Iodine catalyzed one-pot diamination of glycals with chloramine-T: a new approach to 2-amino-β-glycosylamines for applications in N-glycopeptide synthesis
作者:Vipin Kumar、Namakkal G. Ramesh
DOI:10.1039/b612151a
日期:——
Iodine catalyzes a facile one-pot direct diamination of glycals with chloramine-T to afford stereoselectively 2-amino-beta-glycosylamine derivatives that serve as convenient precursors for the synthesis of N-linked glycopeptides.
Design and synthesis of new amino-modified iminocyclitols: selective inhibitors of α-galactosidase
作者:Muthupandian Ganesan、Rekhawar V. Madhukarrao、Namakkal G. Ramesh
DOI:10.1039/b926123k
日期:——
A new and short synthesis of hitherto unreported stereo analogue of amino-modified five-membered iminocyclitols from readily available tri-O-benzyl-D-glucal is described. Significantly, glycosidase inhibition studies of alkylamino substituted iminocyclitols display a high degree of selectivity towards α-galactosidase.