86-58-8Relevant articles and documents
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Letsinger,Dandegaonker
, p. 498,501 (1959)
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Silicon-bridged metallocene complex containing nitrogen heterocyclic ring structures and application thereof
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Paragraph 0045-0048, (2020/06/04)
The invention relates to a preparation method and application of an olefin polymerization reaction catalyst, in particular to a silicon-bridged metallocene complex with nitrogen heterocyclic ring structures and application thereof. Molecules of the designed novel silicon-bridged metallocene complex contain three different nitrogen heterocyclic ring structures, and the distances from nitrogen atomsto a metal center are different, so that different chemical environments are provided for the metal center, and the metallocene complex with a novel structure is constructed. By changing a skeleton structure and a substituent group, the three-dimensional effect and the electronic effect of the metallocene complex can be conveniently regulated and controlled, the catalytic performance is regulatedand controlled, and polyolefin high polymer materials with different structures and properties are prepared.
Pyridin-2(1H)one derivatives: A possible new class of therapeutics for mechanical allodynia
Abrunhosa-Thomas, Isabelle,Anizon, Fabrice,Artola, Alain,Dallel, Radhouane,Descheemaeker, Amélie,Giraud, Francis,Moreau, Pascale,Nauton, Lionel,Pinto-Pardo, Nicolas,Théry, Vincent,Visseq, Alexia
, (2019/12/24)
Mechanical Allodynia (MA), a frequent chronic pain symptom caused by innocuous stimuli, constitutes an unmet medical need, as treatments using analgesics available today are not always effective and can be associated with important side-effects. A series of 3,5-disubstituted pyridin-2(1H)-ones was designed, synthesized and evaluated in vivo toward a rat model of inflammatory MA. We found that the series rapidly and strongly prevented the development of MA. 3-(2-Bromophenyl)-5-(phenylamino)pyridin-2(1H)-one 69, the most active compound of the series, was also able to quickly reverse neuropathic MA in rats. Next, when 69 was evaluated toward a panel of 50 protein kinases (PK) in order to identify its potential biological target(s), we found that 69 is a p38α MAPK inhibitor, a PK known to contribute to pain hypersensitivity in animal models. 3,5-Disubstituted pyridin-2(1H)-ones thus could represent a novel class of analgesic for the treatment of MA.