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Upstream product

• 172751-32-5 5-O-(tert-butyldiphenylsilyl)-1,2-O-isopropylidene-β-D-threo-pentofuranose-3-ulose 
• 352541-83-4 5-O-tert-butyldiphenylsilyl-3-C-trichloromethyl-1,2-O-isopropylidene-β-D-lyxofuranose 
• 14223-45-1 p-tolyl isoselenocyanate 
• 1379002-57-9 3-amino-3-deoxy-5-O-tert-butyldiphenylsilyl-1,2-O-isopropylidene-3-C-methoxycarbonyl-β-D-arabinofuranose 

Relevant academic research and scientific papers

Synthesis of conformationally-constrained thio(seleno)hydantoins and α-triazolyl lactones from d-arabinose as potential glycosidase inhibitors

We have explored the rich structural diversity provided by an α-azido ester derived from d-arabinose as the source of sugar templates with reduced conformational flexibility. Using transient α-thioureido(selenoureido) esters we have prepared spiranic thio(seleno)hydantoins at the C-3 position of the sugar moiety. In this context, the first example of a stable spiranic α-lactam (or aziridinone) was isolated as a by-product in the hydrogenolysis of the starting α-azido ester. Furthermore, using copper(I)-catalyzed azido-alkyne cycloaddition (click chemistry), we have accessed bicyclic cis-fused α-triazolyl lactones fixed in the furanose form. Spiranic thiohydantoins turned out to be moderate, though selective, inhibitors of glycosidases, whereas their selenium isosters behaved as good free radical scavengers.