257925-83-0

Upstream product

• 32315-10-9 bis(trichloromethyl) carbonate 
• 257925-80-7 2-O-benzoyl-1,6-epithio-4-[(1R,4R,5S,6S)-4,5,6-tribenzyloxy-3-(benzyloxymethyl)cyclohex-2-enyl]amino-1,4,6-trideoxy-β-D-glucopyranose 
• 257925-79-4 (1S,2S,3S,4R,5S)-2-((1R,4R,5S,6S)-4,5,6-Tris-benzyloxy-3-benzyloxymethyl-cyclohex-2-enylamino)-8-oxa-6-thia-bicyclo[3.2.1]octane-3,4-diol 
• 178319-24-9 Acetic acid (1S,2S,3R,4R,5S)-4-acetoxy-2-methanesulfonyloxy-8-oxa-6-thia-bicyclo[3.2.1]oct-3-yl ester 
• 178319-25-0 3,4-anhydro-1,6-dideoxy-1,6-epithio-β-D-galactopyranose 

Relevant academic research and scientific papers

β-Acarbose. VII approaches towards the synthesis of some N-linked carba-oligosaccharides

3,4-Anhydro-1,6-dideoxy-1,6-episelerio-β-D-glucose was treated with cyclohexylamine to afford an amino diol which was subsequently converted into a cyclic carbamate, a compound shown to be a moderately successful gly- cosyl donor. Treatment of the same 3,4-anhydro sugar and the 1,6-epithio analogue with a 1-epivalienamine derivative afforded the corresponding secondary amines which were converted into the analogous cyclic carbamates. The epithio analogue was unsuccessful as a glycosyl donor, failing to glycosylate a carbohydrate alcohol. On the other hand, the episeleno compound appeared to function as a glycosyl donor but decomposition of the product occurred under the conditions necessary for its isolation.