139534-83-1

Upstream product

• 140-89-6 potassium ethyl xanthogenate 
• 139574-38-2 (2R,4S,5R,6S)-5-Acetylamino-4-benzoyloxy-2-bromo-6-((1S,2R)-1,2,3-tris-benzoyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester 
• 139574-36-0 (2R,4S,5R,6S)-5-Acetylamino-2,4-bis-benzoyloxy-6-((1S,2R)-1,2,3-tris-benzoyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester 

Downstream Products

• 139534-89-7 (2S,4S,5R,6S)-5-Acetylamino-4-benzoyloxy-2-((4aR,6R,7R,8R,8aS)-6-benzyloxy-7-hydroxy-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy)-6-((1S,2R)-1,2,3-tris-benzoyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester 
• 139534-87-5 (4S,5R,6S)-5-Acetylamino-4-benzoyloxy-6-((1S,2R)-1,2,3-tris-benzoyloxy-propyl)-5,6-dihydro-4H-pyran-2-carboxylic acid methyl ester 
• 139574-34-8 (2S,4S,5R,6S)-5-Acetylamino-4-benzoyloxy-2-((2R,3S,4S,5R,6S)-3,4,5-tris-benzoyloxy-6-ethylsulfanyl-tetrahydro-pyran-2-ylmethoxy)-6-((1S,2R)-1,2,3-tris-benzoyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester 
• 139574-34-8 (2R,4S,5R,6S)-5-Acetylamino-4-benzoyloxy-2-((2R,3S,4S,5R,6S)-3,4,5-tris-benzoyloxy-6-ethylsulfanyl-tetrahydro-pyran-2-ylmethoxy)-6-((1S,2R)-1,2,3-tris-benzoyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester 
• 139534-88-6 (2S,4S,5R,6S)-5-Acetylamino-4-benzoyloxy-2-((2R,3R,4S,5S,6R)-3-benzoyloxy-6-benzoyloxymethyl-2-benzyloxy-5-hydroxy-tetrahydro-pyran-4-yloxy)-6-((1S,2R)-1,2,3-tris-benzoyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester 
• 139534-85-3 (2S,4S,5R,6S)-5-Acetylamino-4-benzoyloxy-2-((2R,3R,4S,5S,6R)-2-benzyloxy-6-benzyloxymethyl-3,5-dihydroxy-tetrahydro-pyran-4-yloxy)-6-((1S,2R)-1,2,3-tris-benzoyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester 

Relevant academic research and scientific papers

α-Selectivity and glycal formation are temperature dependent in glycosylation with sialic acid. Synthesis of a Neu5Acα(2-6)Gal thioglycoside building block

The glycosylation with the N-acetylneuraminic acid (Neu5Ac) donor 1 of the 6-OH position of D-galactose in various nitriles promoted by methylsulfenyl triflate at different temperatures is reported. The proportion of α-sialoside increased and glycal 5 decreased at lower temperatures. A short route to a Neu5Acα(2-6)Gal thioglycoside building block is also described.