| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1348733 | Tetrahedron: Asymmetry | 2010 | 6 Pages |
Abstract
A concise synthesis of a tetrasaccharide related to the cell-growth inhibitory triterpenoid saponin isolated from Schima noronhae is reported. A late stage 2,2,6,6-tetramethylpiperidinyloxy (TEMPO)-mediated oxidation of a primary hydroxyl group to carboxylic acid has been achieved under phase-transfer conditions. Stereoselective glycosylations were carried out using thioglycoside or glycosyl trichloroacetimidate activation using sulfuric acid immobilized on silica (H2SO4-silica) in conjunction with N-iodosuccinimide and alone, respectively.
Related Topics
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Authors
Priya Verma, Ritu Raj, Bimalendu Roy, Balaram Mukhopadhyay,