1338566-08-7

Upstream product

• 1338566-07-6 (((2S,3R,5S,6R)-5-(benzyloxy)-6-((benzyloxy)methyl)-2-((1,3-dithian-2-yl)methyl)tetrahydro-2H-pyran-3-yl)oxy)-t-butyldimethylsilane 
• 632354-40-6 (2S,3R,5S,6R)-5-benzyloxy-6-benzyloxymethyl-2-hydroxymethyltetrahydropyran-3-ol 

Downstream Products

• 1338566-11-2 (E)-ethyl 3-(((2S,3R,5S,6R)-5-(benzyloxy)-6-((benzyloxy)methyl)-2-(2-oxoethyl)tetrahydro-2H-pyran-3-yl)oxy)acrylate 
• 1338566-12-3 ethyl ((2S,3R,4aS,6R,7S,8aR)-7-(benzyloxy)-6-((benzyloxy)methyl)-3-hydroxyoctahydropyrano[3,2-b]pyran-2-yl)acetate 
• 1338566-13-4 ethyl ((2S,3R,4aS,6R,7S,8aR)-7-(benzyloxy)-6-((benzyloxy)methyl)-3-(t-butyldimethylsiloxy)octahydropyrano[3,2-b]pyran-2-yl)acetate 
• 1338566-10-1 (E)-ethyl 3-(((2S,3R,5S,6R)-5-(benzyloxy)-6-((benzyloxy)methyl)-2-((1,3-dithian-2-yl)methyl)tetrahydro-2H-pyran-3-yl)oxy)acrylate 
• 1338566-15-6 (Z)-3-((2S,3R,4aS,6R,7S,8aR)-7-(benzyloxy)-6-((benzyloxy)methyl)-3-(t-butyldimethylsiloxy)octahydropyrano[3,2-b]pyran-2-yl)prop-1-en-1-yl phenyl sulfone 
• 1338566-16-7 (E)-3-((2S,3R,4aS,6R,7S,8aR)-7-(benzyloxy)-6-((benzyloxy)methyl)-3-(t-butyldimethylsiloxy)octahydropyrano[3,2-b]pyran-2-yl)prop-1-en-1-yl phenyl sulfone 
• 1338566-14-5 2-((2S,3R,4aS,6R,7S,8aR)-7-(benzyloxy)-6-((benzyloxy)methyl)-3-(t-butyldimethylsiloxy)octahydropyrano[3,2-b]pyran-2-yl)acetoaldehyde 

Relevant academic research and scientific papers

Divergent synthesis of trans-fused polycyclic ethers by a convergent oxiranyl anion strategy

Octacyclic polyethers that correspond to the CDEFGHIJ-ring system of yessotoxin as well as G-and/or I-ring-modified analogues were synthesized in a divergent manner, starting from a common intermediate, using an [X + 2 + Y]-type convergent method. Reaction of a triflate with the oxiranyl anion generated from an epoxy sulfone, followed by ring expansion, allowed for the incorporation of medium-sized ring ethers into the key intermediate. Subsequent acetal formation and reductive etherification afforded various octacycles containing seven-and eight-membered ether rings.

A convergent strategy for the synthesis of polycyclic ethers by using oxiranyl anions

A new [X+2+Y]-type for the convergent synthesis of polycyclic ethers based on an oxiranyl anion strategy was developed. The sequence involves nucleophilic substitution of a triflate with an oxiranyl anion followed by 6-endo cyclization, ring expansion, an