The azidomethylene protecting group allows the synthesis of unstable phenolic compounds which are used as quinonemethideprecursors in the alkylations of alcohols, phenols, azide, thiophenol, amines, enols and enolates.
Redox reaction between benzyl azides and aryl azides: concerted synthesis of aryl nitriles and anilines
作者:Yongjin Kim、Young Ho Rhee、Jaiwook Park
DOI:10.1039/c6ob02615j
日期:——
unique and novel reaction between benzyl azides and aryl azides is described to synthesize aryl nitriles and anilines concurrently, which is catalyzed with a photoactivated diruthenium complex. N-Unsubstituted imines (N–H imines) are generated first from benzyl azides, followed by the hydrogen transfer reaction between N–H imines and aryl azides. A wide range of aryl nitriles and anilines were synthesized
Synthesis and biological evaluation of a triazole-based library of pyrido[2,3-d]pyrimidines as FGFR3 tyrosine kinase inhibitors
作者:Laurent Le Corre、Anne-Lise Girard、Johannes Aubertin、François Radvanyi、Catherine Benoist-Lasselin、Aurélie Jonquoy、Emilie Mugniery、Laurence Legeai-Mallet、Patricia Busca、Yves Le Merrer
DOI:10.1039/b923882d
日期:——
A library of pyrido[2,3-d]pyrimidines was designed as inhibitors of FGFR3 tyrosine kinase allowing possible interactions with an unexploited region of the ATP binding-site. This library was built-up with an efficient step of click-chemistry giving easy access to triazole-based compounds bearing a large panel of substituents. Among the 27 analogues synthesized, more than half exhibited 55–89% inhibition of in vitro FGFR3 kinase activity at 2 μM and one (19g) was able to inhibit auto-phosphorylation of mutant FGFR3-K650M in transfected HEK cells.
transported to the brain and neurons. Multifunctional ascorbic derivatives were synthesized by copper (I)-catalyzed azide–alkyne cycloaddition reaction (click chemistry). The in vitro and cell-based assays showed that compounds 2c and 5c exhibited prominent multifunctional activities as beta-secretase 1 inhibitors, amyloid aggregation inhibitors, and antioxidant, neuroprotectant, and anti-inflammatory agents
Click‐Connected 2‐(Hydroxyimino)aldehydes for the Design of UV‐Responsive Functional Molecules
作者:Francesca D'Acunzo、Linda Carbonaro、Antonella Dalla Cort、Antonio Di Sabato、Dario Filippini、Francesca Leonelli、Laura Mancini、Patrizia Gentili
DOI:10.1002/ejoc.202001303
日期:2021.1.15
The 2‐(hydroxyimino)aldehyde (HIA) group undergoes Norrish–Yang photoisomerization to ciclobutanol oxime and is under investigation as metal ions ligand. Herein, click chemistry was used as a straightforward procedure to obtain HIA‐based functionalmolecules, the products obtained by UV irradiation with a LED source (λ=365 nm) were characterized and it was shown by UV‐Vis spectrometry that HIAs specifically