194155-46-9

Upstream product

• 194155-44-7 (2S,4R,5R,6R)-4,5-Diacetoxy-6-(tert-butyl-diphenyl-silanyloxymethyl)-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester 
• 194155-43-6 (2S,4S,5S,6R)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-4,5-dihydroxy-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester 
• 194155-40-3 (2S,4S,5S,6R)-4,5-Diacetoxy-6-acetoxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester 
• 194155-42-5 (2S,4S,5S,6R)-4,5-Dihydroxy-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester 
• 194155-45-8 (2S,4R,5R,6R)-4,5-Diacetoxy-6-acetoxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester 

Relevant academic research and scientific papers

Convenient preparation of α- and β-glycosides of novel isomeric 3-deoxy-hept-2-ulosaric acids diesters

Methyl 3-deoxy-α and β-D-ribo, D-xylo and D-lyxo-hept-2-ulosonic acids were obtained from the individual α and β anomers of the same methyl (methyl 3-deoxy-D-arabino-hept-2-ulopyranosid)onate in a sequential epimerisation at C-4 and/or C-5 of their appropriate O-trifluoromethanesulfonic derivatives, using cesium acetate. Subsequent oxidation of the 7-OH group in these compounds lead to the new isomeric 3-deoxy-hept-2-ulosaric acids derivatives.