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Org Biomol Chem ; 19(3): 605-618, 2021 01 28.
Artigo em Inglês | MEDLINE | ID: mdl-33355586

RESUMO

Coupling reactions of O-peracylated 2,6-anhydro-aldose tosylhydrazones (C-(ß-d-glycopyranosyl)formaldehyde tosylhydrazones) with tetrazoles were studied under metal-free conditions using thermic or microwave activation in the presence of different bases. The reactions proved highly regioselective and gave the corresponding, up-to-now unknown 2-ß-d-glycopyranosylmethyl-2H-tetrazoles in 7-67% yields. The method can be applied to get new types of disaccharide mimetics, 5-glycosyl-2-glycopyranosylmethyl-2H-tetrazoles, as well. Galectin binding studies with C-(ß-d-galactopyranosyl)formaldehyde tosylhydrazone and 2-(ß-d-galactopyranosylmethyl)-5-phenyl-2H-tetrazole revealed no significant inhibition of any of these lectins.

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