- Discovery, Synthesis, and Preclinical Characterization of N-(3-Chloro-4-fluorophenyl)-1H-pyrazolo[4,3-b]pyridin-3-amine (VU0418506), a Novel Positive Allosteric Modulator of the Metabotropic Glutamate Receptor 4 (mGlu4)
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The efficacy of positive allosteric modulators (PAMs) of the metabotropic glutamate receptor 4 (mGlu4) in preclinical rodent models of Parkinson's disease has been established by a number of groups. Here, we report an advanced preclinically characterized mGlu4 PAM, N-(3-chloro-4-fluorophenyl)-1H-pyrazolo[4,3-b]pyridin-3-amine (VU0418506). We detail the discovery of VU0418506 starting from a common picolinamide core scaffold and evaluation of a number of amide bioisosteres leading to the novel pyrazolo[4,3-b]pyridine head group. VU0418506 has been characterized as a potent and selective mGlu4 PAM with suitable in vivo pharmacokinetic properties in three preclinical safety species.
- Engers, Darren W.,Blobaum, Anna L.,Gogliotti, Rocco D.,Cheung, Yiu-Yin,Salovich, James M.,Garcia-Barrantes, Pedro M.,Daniels, J. Scott,Morrison, Ryan,Jones, Carrie K.,Soars, Matthew G.,Zhuo, Xiaoliang,Hurley, Jeremy,Macor, John E.,Bronson, Joanne J.,Conn, P. Jeffrey,Lindsley, Craig W.,Niswender, Colleen M.,Hopkins, Corey R.
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p. 1192 - 1200
(2016/10/03)
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- ALLOSTERIC MODULATORS OF METABOTROPIC GLUTAMATE RECEPTORS
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Formula (I), and salts thereof, wherein R1, RA2, RA3 and RA4, are defined herein, which have properties for positive allosteric modulation of mGluR-4 receptor sites. Also described are pharmaceutical formulations comprising the compounds of Formula (I) or their salts, and methods of treating Parkinson's disease and related disorders using the same.
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Paragraph 0086
(2013/05/21)
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- ALLOSTERIC MODULATORS OF METABOTROPIC GLUTAMATE RECEPTORS
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Disclosed are compounds of Formula (I), and salts thereof, wherein R1, RA2, RA3 and RA4, are defined herein, which have properties for positive allosteric modulation of mGluR-4 receptor sites. Also described are pharmaceutical formulations comprising the compounds of Formula (I) or their salts, and methods of treating Parkinson's disease and related disorders using the same.
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Paragraph 0086
(2013/05/21)
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- PYRAZOLOPYRIDINE, PYRAZOLOPYRAZINE, PYRAZOLOPYRIMIDINE, PYRAZOLOTHIOPHENE AND PYRAZOLOTHIAZOLE COMPOUNDS AS MGLUR4 ALLOSTERIC POTENTIATORS, COMPOUNDS, AND METHODS OF TREATING NEUROLOGICAL DYSFUNCTION
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Pyrazolopyridine, pyrazolopyrazine, pyrazolopyrimidine, pyrazolothiophene and pyrazolothiazole compounds which are useful as allosteric potentiators/positive allosteric modulators of the metabotropic glutamate receptor subtype 4 (mGluR4); synthetic methods for making the compounds; pharmaceutical compositions comprising the compounds; and methods of using the compounds, for example, in treating neurological and psychiatric disorders or other disease state associated with glutamate dysfunction.
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Page/Page column 78
(2011/09/15)
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- PYRAZOLE COMPOUND AND MEDICINAL COMPOSITION CONTAINING THE SAME
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The present invention provides a novel compound having an excellent JNK inhibitory effect. That is, it provides a compound represented by the following formula, a salt thereof or a hydrate of them. Wherein R1 designates -(CO)h-(NRa)j-(CRb=CRc)k-Ar (wherein Ra, Rb and Rc each independently designate a hydrogen atom, a halogen atom, hydroxyl group, an optionally substituted C1-6 alkyl group or the like; Cy designates a 5- or 6-membered heteroaryl; and V each independently designate the formula -L-X-Y (wherein L designates a single bond, an optionally substituted C1-6 alkylene group or the like; X designates a single bond or the formula -A- (wherein A designates NR2, O, CO, S, SO or SO2) and so on; and Y designates a hydrogen atom, a halogen atom, nitro group or the like).
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Page/Page column 135
(2008/06/13)
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