667923-76-4

Upstream product

• 721924-31-8 3-amino-3-N-benzyl-3-C-cyano-3-deoxy-1,2-O-isopropylidene-3-N-methanesulfonyl-5-O-trityl-α-D-ribofuranose 
• 332366-77-5 3-amino-5-O-benzoyl-3-C-cyano-3-deoxy-1,2-O-isopropylidene-3-N-methanesulfonyl-α-D-ribofuranose 
• 302582-03-2 3-amino-3-C-cyano-3-deoxy-5-O-trityl-1,2-O-isopropylidene-α-D-xylofuranose 
• 302582-11-2 3-amino-5-O-benzoyl-3-C-cyano-3-deoxy-1,2-O-isopropylidene-α-D-ribofuranose 
• 6698-46-0 5-O-benzoyl-1,2-O-isopropylidene-α-D-ribofuranos-3-ulose 
• 20590-54-9 1,2-O-isopropylidene-5-O-(triphenylmethyl)-α-D-erythro-pentofuranos-3-ulose 
• 667923-62-8 3-amino-3-N-benzyl-5-O-benzoyl-3-C-cyano-3-deoxy-1,2-O-isopropylidene-3-N-methanesulfonyl-3-N-methyl-α-D-ribofuranose 

Relevant academic research and scientific papers

Synthesis and transformations of [1,2-O-isopropylidene-α-D-erythro (and α-D-ribo)furanose]-3-spiro-3′-(4′-amino-5′H- 2′,3′-dihydroisothiazole-1′,1′-dioxide) derivatives

The carbanion-mediated sulfonamide cyclisations (CSIC protocols) of glyco-α-sulfonamidonitriles derived from readily available uloses 1A and 1B have been investigated using different bases (potassium carbonate, cesium carbonate, LDA and n-BuLi). As a result, a series of enantiomerically pure [1,2-O-isopropylidene-α-D-erythro (and α-D-ribo)furanose]-3-spiro- 3′-(4′-amino-5′H-2′,3′-dihydroisothiazole- 1′,1′-dioxide) derivatives have been prepared and isolated in good yields.

Synthesis of 4-Amino-5-H-2,3-dihydroisothiazole-1,1-dioxide Ring Systems on Sugar Templates via Carbanion-Mediated Sulfonamide Intramolecular Cyclization Reactions (CSIC Protocols) of Glyco-α-sulfonamidonitriles

The carbanion-mediated sulfonate intramolecular cyclizations (CSIC protocols) of glyco-α-sulfona-midonitriles derived from readily available monosaccharides have been extensively investigated using potassium carbonate, cesium carbonate, n-BuLi, and LDA as