Disclosed are indazole compounds and derivatives thereof for use as modulators of the activity of mitogen-activated protein kinase 4 (MEK4). The disclosed compounds include 3-Arylindazoles which may be formulated in pharmaceutical composition for treating cell proliferative diseases and disorders associated with MEK4 activity, including cancer.
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Paragraph 0027; 0421; 0426
(2021/01/22)
Copper-Promoted Oxidative Intramolecular C–H Amination of Hydrazones to Synthesize 1H-Indazoles and 1H-Pyrazoles Using a Cleavable Directing Group
A facile and efficient synthesis of 1H-indazoles and 1H-pyrazoles through a copper-promoted oxidative intramolecular C–H amination of hydrazones using a cleavable directing group was developed. This reaction is characterized by its mild conditions, operational simplicity, readily available reagents, and excellent yields. A tentative mechanism for Cu-mediated C–H oxidative amination was proposed.
Microwave assisted solvent-free C-H amination by silica-supported manganese dioxide
An effective and convenient method has been developed for the preparation of 1-unsubstituted 1H-indazoles via C-H amination of N-acetylhydrazones in the presence of a catalytic amount of manganese dioxide under microwave irradiation. This new method featured easy operation and relatively short reaction-time.
Cao, Sufen,Duan, Wenhu
p. 2390 - 2394
(2016/05/19)
Discovery of 2-(1H-indazol-1-yl)-thiazole derivatives as selective EP 1 receptor antagonists for treatment of overactive bladder by core structure replacement
We have designed a series of potent EP1 receptor antagonists. These antagonists are a series of 2-(1H-indazol-1-yl)-thiazoles in which the core structure was replaced with pyrazole-phenyl groups. In preliminary conscious rat cystometry experiments, two representative candidates, 2 and 22, increased bladder capacity. In particular, the increase using 22 was approximately 2-fold that of the baseline. More detailed profiling of this compound and further optimization of this series promises to provide a novel class of drug for treating overactive bladder (OAB).