144017-84-5Relevant articles and documents
Design, synthesis, structure-activity relationship, and in vivo activity of azabicyclic aryl amides as α7 nicotinic acetylcholine receptor agonists
Walker, Daniel P.,Wishka, Donn G.,Piotrowski, David W.,Jia, Shaojuan,Reitz, Steven C.,Yates, Karen M.,Myers, Jason K.,Vetman, Tatiana N.,Margolis, Brandon J.,Jacobsen, E. Jon,Acker, Brad A.,Groppi, Vincent E.,Wolfe, Mark L.,Thornburgh, Bruce A.,Tinholt, Paula M.,Cortes-Burgos, Luz A.,Walters, Rodney R.,Hester, Matthew R.,Seest, Eric P.,Dolak, Lester A.,Han, Fusen,Olson, Barbara A.,Fitzgerald, Laura,Staton, Brian A.,Raub, Thomas J.,Hajos, Mihaly,Hoffmann, William E.,Li, Kai S.,Higdon, Nicole R.,Wall, Theron M.,Hurst, Raymond S.,Wong, Erik H.F.,Rogers, Bruce N.
, p. 8219 - 8248 (2007/10/03)
A novel set of azabicyclic aryl amides have been identified as potent and selective agonists of the α7 nAChR. A two-pronged approach was taken to improve the potential hERG liability of previously disclosed α7 nAChR agonist, PNU-282,987, while maintaining the compound's other desirable pharmacological properties. The first approach involved further exploration of the aryl carboxylic acid fragment of PNU-282,987, while the second approach focused on modification of the azabicyclic amine portion of PNU-282,987. The best compounds from each series are characterized by rapid brain penetration, good oral bioavailability in rat, and demonstrate in vivo efficacy in a rat P50 auditory sensory gating assay. At least one analog from each series (1h, 1o, 2a, 9a, and 18a) shows an improved hERG safety profile over PNU-282,987.
COMPOUNDS AS RADIOLIGANDS FOR THE DIAGNOSIS OF DISEASE
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Page 42-43, (2010/02/07)
Radiolabeled ligands useful as probes for determining the relative abundance, receptor occupancy, and/or function of nicotinic acetylcholine receptors. The compounds of Formula I as described herein are labeled with a radioactive isotopic moiety such as 11C, 18F, 76Br, 123I or 125I. Disorders are diagnosed by administering to a mammal a detectably labeled compound and detecting the binding of that compound to the nAChR. The compounds that have been administered are detected using methods including, but not limited to, position emission topography and single-photon to emission computed tomography. The present invention is useful in diagnosing a wide variety of diseases and disorders as discussed herein.
Azabicyclic compounds for the treatment of disease
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Page 29-30, (2010/02/06)
The invention provides compounds of Formula I: 1wherein Azabicyclo is 2These compounds may be in the form of pharmaceutical salts or compositions, may be in pure enantiomeric form or racemic mixtures, and are useful in pharmaceuticals in which α7 is known to be involved.
A New Approach to Kainoids through Tandem Michael Reaction Methodology: Application to the Enantioselective Synthesis of (+)- and (-)-α-Allokainic Acid and to the Formal Synthesis of (-)-α-Kainic Acid
Barco, Achille,Benetti, Simonetta,Spalluto, Giampiero,Casolari, Alberto,Pollini, Gian P.,Zanirato, Vinicio
, p. 6279 - 6286 (2007/10/02)
A convergent, one-pot construction of functionalized pyrrolidine ring systems has been developed.The method is based on a tandem Michael reaction initiated by an intermolecular conjugate addition of a nitrogen nucleophile to an electrophilic olefin followed by trapping of the generated enolate by a built-in α,β-unsaturated acceptor.After model studies verified the feasibility of the process and gave information about its stereochemical outcome, the strategy was successfully applied to kainoid synthesis.The construction of the basic pyrrolidine skeleton of all the members of the family requires coupling of a suitable electrophilic subunit with a common donor-acceptor fragment containing the nitrogen nucleophile.Thus, the enantioselective synthesis of (+)-α-allokainic acid (2) and the formal synthesis of its C-4 epimer (-)-α-kainic acid (1), have been accomplished using methyl vinyl ketone and 2-nitro-3-methyl-1,3-butadiene, respectively, as electrophilic partners of (S)-4-(benzylamino)-5-hydroxy-2-pentenoic acid ethyl ester (17), easily derived in six steps from D-serine.Although the acetyl group of methyl vinyl ketone is a logical precursor to the isopropenyl moiety of 2, the use of the nitrobutadiene is more appropriate for the synthesis of 1 because of the startling degree of control of the cyclization stereochemistry exerted by the nitro group.
