General synthesis and biological evaluation of alpha-1-C-substituted derivatives of fagomine (2-deoxynojirimycin-alpha-C-glycosides) |
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Authors: | Goujon Jean-Yves Gueyrard David Compain Philippe Martin Olivier R Ikeda Kyoko Kato Atsushi Asano Naoki |
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Institution: | Institut de Chimie Organique et Analytique, CNRS, Université d'Orléans, rue de Chartres, BP 6759, 45067 Orléans, France. |
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Abstract: | A general synthesis of alpha-1-C-substituted derivatives of fagomine (2-deoxynojirimycin-alpha-C-glycosides) by ring-opening reactions of an aziridine with various heteroatomic nucleophiles, including thiol, amine, alcohol, carboxylate and phosphate, is described. The nine-step reaction sequence proceeded in an overall yield of 14-28% from tri-O-benzyl-D-glucal. Biological evaluation of alpha-1-C-substituted derivatives of fagomine, of the 2-deoxy analog of alpha-homonojirimycin 19 and its 1,N-anhydro derivative 22 as glycosidase inhibitors is reported. The glycosyl phosphate mimetic 15k was found to display no inhibitory activity towards glycogen phosphorylase b and phosphoglucomutase. |
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