Synthesis of D-glycopyranosyl azides from 1,2-anhydrosugars using lithium azidohydridodiisobutylaluminate
作者:Goo Soo Lee、Hye Kyung Min、Bong Young Chung
DOI:10.1016/s0040-4039(98)02435-6
日期:1999.1
1,2-Anhydrosugars were transformed regio- and stereoselectively into the corresponding D-glycopyranosyl azides in high yield by treatment with lithium azidohydridodiisobutylaluminate in THE (C) 1998 Elsevier Science Ltd. All rights reserved.
Ceric Ammonium Nitrate-Catalyzed Azidation of 1,2-Anhydro Sugars: Application in the Synthesis of Structurally Diverse Sugar-Derived Morpholine 1,2,3-Triazoles and 1,4-Oxazin-2-ones
作者:Y. Suman Reddy、A. P. John Pal、Preeti Gupta、Alafia A. Ansari、Yashwant D. Vankar
DOI:10.1021/jo200260w
日期:2011.8.5
Azidation of 1,2-anhydro sugars with NaN3 in CH3CN by using a catalytic amount of ceric ammonium nitrate has been accomplished in a regio- and stereoselective manner. Various 1,2-anhydro sugars produced 2-hydroxy-1-azido sugars in good yields which, in turn, were converted to structurally diverse sugar-derived morpholine triazoles and sugar oxazin-2-ones. These sugar derivatives were tested against various commercially available glycosidases, and two of them were found to be active in the micromolar range.