36529-69-8Relevant articles and documents
From Pyridine- N-oxides to 2-Functionalized Pyridines through Pyridyl Phosphonium Salts: An Umpolung Strategy
Bugaenko, Dmitry I.,Yurovskaya, Marina A.,Karchava, Alexander V.
supporting information, p. 6099 - 6104 (2021/08/03)
The reactions of pyridine-N-oxides with Ph3P under the developed conditions provide an unprecedented route to (pyridine-2-yl)phosphonium salts. Upon activation with DABCO, these salts readily serve as functionalized 2-pyridyl nucleophile equivalents. This umpolung strategy allows for the selective C2 functionalization of the pyridine ring with electrophiles, avoiding the generation and use of unstable organometallic reagents. The protocol operates at ambient temperature and tolerates sensitive functional groups, enabling the synthesis of otherwise challenging compounds.
Substituted piperazines as metabotropic glutamate receptor antagonists
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Page/Page column 14, (2008/06/13)
The invention relates to compounds of formula I or pharmaceutically acceptable salts or solvates thereof: where Ar1, Ar2, Hy, L, R1, m and n are as defined in the description. The invention also includes pharmaceutical compositions and uses thereof, processes for making the compounds, as well as methods for the medical treatment of mGluR5-mediated disorders.
1-biaryl-1,8-naphthyridin-4-one phosphodiesterase-4 inhibitors
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, (2008/06/13)
Compounds represented by Formula (I): or a pharmaceutically acceptable salt thereof, are phosphodiesterrase 4 inhibitors useful in the treatment of asthma and inflammation.
