181271-03-4

Upstream product

• 181270-95-1 1,2,3,6-tetra-O-acetyl-4-deoxy-4-C-ethynyl-α-D-glucopyranose 
• 181270-96-2 phenyl 2,3,6-tri-O-acetyl-4-deoxy-4-ethynyl-1-thio-β-d-glucopyranoside 
• 181270-92-8 Acetic acid (2R,3R,4S,5R)-4,5-bis-benzyloxy-2-benzyloxymethyl-6-oxo-tetrahydro-pyran-3-yl ester 
• 181270-94-0 (2R,3R,4S,5S,6S)-4,5-Bis-benzyloxy-2-benzyloxymethyl-6-trimethylsilanylethynyl-tetrahydro-pyran-3-ol 
• 181270-93-9 Acetic acid (2R,3R,4R,5S,6S)-4,5-bis-benzyloxy-2-benzyloxymethyl-6-trimethylsilanylethynyl-tetrahydro-pyran-3-yl ester 
• 84218-71-3 4-O-acetyl-2,3,6-tri-O-benzyl-β-D-glucopyranoside 
• 181270-98-4 Acetic acid (2S,3R,4S,5R,6S)-4-acetoxy-6-acetoxymethyl-2-((2R,3R,4R,5S,6S)-4,5-bis-benzyloxy-2-benzyloxymethyl-6-trimethylsilanylethynyl-tetrahydro-pyran-3-yloxy)-5-ethynyl-tetrahydro-pyran-3-yl ester 

Relevant academic research and scientific papers

109. Oligosaccharide analogues of polysaccharides: Part 8. Orthogonally protected cellobiose-derived dialkynes. A convenient method for the regioselective bromo- and protodegermylation of trimethylgermyl- and trimethylsilyl-protected dialkynes

The cellobiose-derived dialkynes 14 and 15 were prepared by glycosidation of the acceptor 9 with the thioglycosides 12 (82%) and 13 (85%), respectively. The acceptor 9 was prepared from the known alcohol 2 via the lactone 7 in five steps (48% overall), an