scholarly journals Regioselective O-Glycosylation of Nucleosides via the Temporary 2',3'-Diol Protection by a Boronic Ester for the Synthesis of Disaccharide Nucleosides

10.3791/57897 ◽  
2018 ◽  
Author(s):  
Hidehisa Someya ◽  
Taiki Itoh ◽  
Mebae Kato ◽  
Shin Aoki
Keyword(s):  
Boronic Ester ◽  
Disaccharide Nucleosides

“Solid-Liquid” Vitrimers Based on Dynamic Boronic Ester Networks

2021 ◽  
Author(s):  
Sheng Wang ◽  
Lu-Lu Xue ◽  
Xiao-Zhuang Zhou ◽  
Jia-Xi Cui
Keyword(s):  
Boronic Ester ◽  
Solid Liquid

Biobased, Biodegradable, Self-Healing Boronic Ester Vitrimers from Epoxidized Soybean Oil Acrylate

2020 ◽  
Author(s):  
Arkadiusz Zych ◽  
Jonathan Tellers ◽  
Laura Bertolacci ◽  
Luca Ceseracciu ◽  
Lara Marini ◽  
...  
Keyword(s):  
Soybean Oil ◽  
Epoxidized Soybean Oil ◽  
Self Healing ◽  
Boronic Ester

Disaccharide nucleosides: The crystal and molecular structure of 2′-O-β-D-ribopyranosylcytidine

2005 ◽  
Vol 50 (3) ◽  
pp. 395-399 ◽  
Author(s):  
G. V. Gurskaya ◽  
N. E. Zhukhlistova ◽  
Yu. V. Nekrasov ◽  
G. V. Bobkov ◽  
E. V. Efimtseva ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Crystal And Molecular Structure ◽  
Disaccharide Nucleosides

ChemInform Abstract: Disaccharide Nucleosides and Their Enzymatic and Chemical Incorporation into Oligonucleotides.

ChemInform ◽  
2010 ◽  
Vol 30 (5) ◽  
pp. no-no
Author(s):  
E. V. EFIMTSEVA ◽  
L. S. VICTOROVA ◽  
A. A. RODIONOV ◽  
B. S. ERMOLINSKY ◽  
M. V. FOMITCHEVA ◽  
...  
Keyword(s):  
Disaccharide Nucleosides

Enantioselective synthesis of (R)-tolterodine using lithiation/borylation–protodeboronation methodology

2012 ◽  
Vol 90 (11) ◽  
pp. 965-974 ◽  
Author(s):  
Stefan Roesner ◽  
Varinder K. Aggarwal
Keyword(s):  
Enantioselective Synthesis ◽  
High Yield ◽  
Magnesium Bromide ◽  
Efficient Synthesis ◽  
Boronic Ester ◽  
Better Than

The synthesis of the pharmaceutical (R)-tolterodine is reported using lithiation/borylation–protodeboronation of a homoallyl carbamate as the key step. This step was tested with two permutations: an electron-neutral aryl Li-carbamate reacting with an electron-rich boronic ester and an electron-rich aryl Li-carbamate reacting with an electron-neutral boronic ester. It was found that the latter arrangement was considerably better than the former. Further improvements were achieved using magnesium bromide in methanol leading to a process that gave high yield and high enantioselectivity in the lithiation/borylation reaction. The key step was used in an efficient synthesis of (R)-tolterodine in a total of eight steps in a 30% overall yield and 90% ee.

Regioselective and 1,2-cis-α-Stereoselective Glycosylation Utilizing Glycosyl-Acceptor-Derived Boronic Ester Catalyst

2015 ◽  
Vol 54 (37) ◽  
pp. 10935-10939 ◽  
Author(s):  
Akira Nakagawa ◽  
Masamichi Tanaka ◽  
Shun Hanamura ◽  
Daisuke Takahashi ◽  
Kazunobu Toshima
Keyword(s):  
Stereoselective Glycosylation ◽  
Boronic Ester

scholarly journals Efficiently self-healing boronic ester crystals

2020 ◽  
Vol 11 (10) ◽  
pp. 2606-2613 ◽  
Author(s):  
Patrick Commins ◽  
Marieh B. Al-Handawi ◽  
Durga Prasad Karothu ◽  
Gijo Raj ◽  
Panče Naumov
Keyword(s):  
Organic Crystal ◽  
Self Healing ◽  
Boronic Ester ◽  
Order Of Magnitude

Organic crystal is described that can be bent plastically and twisted elastically, and can self-heal to 67%, an efficiency that is an order-of-magnitude higher compared to the only previously reported example.

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