1214337-82-2Relevant academic research and scientific papers
Novel S1P1 receptor agonists - Part 5: From amino-to alkoxy-pyridines
Bolli, Martin H.,Lescop, Cyrille,Birker, Magdalena,De Kanter, Ruben,Hess, Patrick,Kohl, Christopher,Nayler, Oliver,Rey, Markus,Sieber, Patrick,Velker, J?rg,Weller, Thomas,Steiner, Beat
supporting information, p. 326 - 341 (2016/04/19)
In a previous communication we reported on the discovery of aminopyridine 1 as a potent, selective and orally active S1P1 receptor agonist. More detailed studies revealed that this compound is phototoxic in vitro. As a result of efforts aiming at eliminating this undesired property, a series of alkoxy substituted pyridine derivatives was discovered. The photo irritancy factor (PIF) of these alkoxy pyridines was significantly lower than the one of aminopyridine 1 and most compounds were not phototoxic. Focused SAR studies showed, that 2-, 3-, and 4-pyridine derivatives delivered highly potent S1P1 receptor agonists. While the 2-pyridines were clearly more selective against S1PR3, the corresponding 3- or 4-pyridine analogues showed significantly longer oral half-lives and as a consequence longer pharmacological duration of action after oral administration. One of the best compounds, cyclopentoxy-pyridine 45b lacked phototoxicity, showed EC50 values of 0.7 and 140 nM on S1PR1 and S1PR3, respectively, and maximally reduced the blood lymphocyte count for at least 24 h after oral administration of 10 mg/kg to Wistar rats.
Design and synthesis of dihydrobenzofuran amides as orally bioavailable, centrally active γ-secretase modulators
Pettersson, Martin,Johnson, Douglas S.,Subramanyam, Chakrapani,Bales, Kelly R.,Am Ende, Christopher W.,Fish, Benjamin A.,Green, Michael E.,Kauffman, Gregory W.,Lira, Ricardo,Mullins, Patrick B.,Navaratnam, Thayalan,Sakya, Subas M.,Stiff, Cory M.,Tran, Tuan P.,Vetelino, Beth C.,Xie, Longfei,Zhang, Liming,Pustilnik, Leslie R.,Wood, Kathleen M.,O'Donnell, Christopher J.
, p. 2906 - 2911 (2012/06/04)
We report the discovery and optimization of a novel series of dihydrobenzofuran amides as γ-secretase modulators (GSMs). Strategies for aligning in vitro potency with drug-like physicochemical properties and good microsomal stability while avoiding P-gp mediated efflux are discussed. Lead compounds such as 35 and 43 have moderate to good in vitro potency and excellent selectivity against Notch. Good oral bioavailability was achieved as well as robust brain Aβ42 lowering activity at 100 mg/kg po dose.
NOVEL HETEROARYL IMIDAZOLES AND HETEROARYL TRIAZOLES AS GAMMA-SECRETASE MODULATORS
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, (2011/05/06)
Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I; (I) as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
