521278-13-7Relevant articles and documents
JNJ-67569762, A 2-Aminotetrahydropyridine-Based Selective BACE1 Inhibitor Targeting the S3 Pocket: From Discovery to Clinical Candidate
Rombouts, Frederik J. R.,Kusakabe, Ken-Ichi,Alexander, Richard,Austin, Nigel,Borghys, Herman,De Cleyn, Michel,Dhuyvetter, Deborah,Gijsen, Harrie J. M.,Hrupka, Brian,Jacobs, Tom,Jerhaoui, Soufyan,Lammens, Lieve,Leclercq, Laurent,Tsubone, Koichi,Ueno, Tatsuhiko,Morimoto, Kenji,Einaru, Shunsuke,Sumiyoshi, Hirokazu,Van Den Bergh, An,Vos, Ann,Surkyn, Michel,Teisman, Ard,Moechars, Diederik
, p. 14175 - 14191 (2021/10/12)
The discovery of a novel 2-aminotetrahydropyridine class of BACE1 inhibitors is described. Their pKa and lipophilicity were modulated by a pending sulfonyl group, while good permeability and brain penetration were achieved via intramolecular hydrogen bonding. BACE1 selectivity over BACE2 was achieved in the S3 pocket by a novel bicyclic ring system. An optimization addressing reactive metabolite formation, cardiovascular safety, and CNS toxicity is described, leading to the clinical candidate JNJ-67569762 (12), which gave robust dose-dependent BACE1-mediated amyloid β lowering without showing BACE2-dependent hair depigmentation in preclinical models. We show that 12 has a favorable projected human dose and PK and hence presented us with an opportunity to test a highly selective BACE1 inhibitor in humans. However, 12 was found to have a QT effect upon repeat dosing in dogs and its development was halted in favor of other selective leads, which will be reported in the future.
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.
