Two new photoaffinity reagents having photoreactive groups attached to C-6 of D-galactose have been prepared. 6-N-(6Azido-2-hydroxybenzoyl)-D-glucopyranosylamine and 6-N-(4-azido-2-hydroxybenzoyl)-D-galactopyranosylamine were synthesized by acylation of the protected amino sugars with 4-azidosalicoy
Stereoselective Synthesis of 3-Glycosyl-5-methoxycarbonylisoxazolides from D-Galactose and D-Glucose.
✍ Scribed by Pastora Borrachero; Francisca Cabrera-Escribano; Manuel Gomez-Guillen; M. Isabel Torres
- Publisher
- John Wiley and Sons
- Year
- 2004
- Weight
- 22 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
Abstract
For Abstract see ChemInform Abstract in Full Text.
📜 SIMILAR VOLUMES
## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract The rare and expensive __D__‐talose was conveniently synthesized from readily available __D__‐galactose in four steps with an overall yield of 58%. The key step was the inversion of equatorial 2‐OH of galactose to the axial one by S~N~2 reaction under the modified Lattrell‐Dax reaction
Although methylene acetals of sugars can be synthesized by reaction with formaldehyde in an acidic medium [1] or with dihalomethanes in an alkaline medium [2], they are far less popular than the isopropylidene, benzylidene, or ethylidene acetal derivatives [3]. This may be due to the higher resistan