Exploration of amino alcohol derivatives as novel, potent, and highly selective sphingosine-1-phosphate receptor subtype-1 agonists
作者:Ghotas Evindar、Sylvie G. Bernier、Elisabeth Doyle、Malcolm J. Kavarana、Alexander L. Satz、Jeanine Lorusso、Heather S. Blanchette、Ashis K. Saha、Gerhard Hannig、Barry A. Morgan、William F. Westlin
DOI:10.1016/j.bmcl.2010.02.098
日期:2010.4
In pursuit of a potent and highly selective sphingosine-1-phosphate receptor agonists with an improved in vivo conversion of the precursor to the active phospho-drug, we have utilized previously reported phenylamide and phenylimidazole scaffolds to identify a selectivity enhancing moiety (SEM) and selectivity enhancing orientation (SEO) within both pharmacophores. SEM and SEO have allowed for over 100 to 500-fold improvement in selectivity for S1P receptor subtype 1 over subtype 3. Utility of SEM and SEO and further SAR study allowed for discovery of a potent and selective preclinical candidate PPI-4955 (21b) with an excellent in vivo potency and dose responsiveness and markedly improved overall in vivo pharmacodynamic properties upon oral administration. (C) 2010 Elsevier Ltd. All rights reserved.