Gram Scale Production of 1-azido-β-d-glucose Enzyme Catalysis for the Synthesis of 1,2,3-triazole-glucosides
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The production of analytical amounts of azido sugars is used as a means of verifying catalytic acid/base mutations of retaining glycosidase, but application of this process to preparative synthesis has not been reported. The catalytic acid/base mutant of GH116 β-glucosidase, GH116D593A, catalyzed the gram scale production of 1-azido-β-d-glucose (1) from -nitropheyl-β-d-glucopyranoside (NPGlc) and azide a transglucosylation reaction. Overnight reaction of the enzyme with NPGlc and NaN in aqueous MES buffer (pH 5.5) at 55 °C produced 1 (3.27 g), which was isolated as a white foamy solid in 96% yield. This 1 was successfully utilized for the synthesis of fifteen 1,2,3-triazole-β-d-glucosyl derivatives (2-16) containing a variety of functional groups, click chemistry.
Gorantla J, Maniganda S, Pengthaisong S, Ngiwsara L, Sawangareetrakul P, Chokchaisiri S ACS Omega. 2021; 6(39):25710-25719.
PMID: 34632227 PMC: 8495876. DOI: 10.1021/acsomega.1c03928.