1,3-Dioxane as a scaffold for potent and selective 5-HT1AR agonist with in-vivo anxiolytic, anti-depressant and anti-nociceptive activity
作者:Silvia Franchini、Claudia Sorbi、Pasquale Linciano、Gianluca Carnevale、Annalisa Tait、Simone Ronsisvalle、Michela Buccioni、Fabio Del Bello、Antonio Cilia、Lorenza Pirona、Nunzio Denora、Rosa Maria Iacobazzi、Livio Brasili
DOI:10.1016/j.ejmech.2019.05.024
日期:2019.8
A series of compounds generated by ring expansion/opening and molecular elongation/simplification of the 1,3-dioxolane scaffold were prepared and tested for binding affinity at 5-HT1AR and alpha(1) adrenoceptors. The compounds with greater affinity were selected for further functional studies. N4(2,2-dipheny1-1,3-dioxan-5-yl)methyl)-2-(2-methoxyphenoxy)ethan-1-ammonium hydrogen oxalate (12) emerged as highly potent full agonist at the 5-HT1AR (pKi 5-HT1A = 8.8; pD(2) = 9.22, %E-max = 92). The pharmacokinetic data in rats showed that the orally administered 12 has a high biodistribution in the brain compartment. Thus, 12 was further investigated in-vivo, showing an anxiolytic and antidepressant effect. Moreover, in the formalin test, 12 was able to decrease the late response to the noxious stimulus, indicating a potent1Al use in the treatment of chronic pain. (C) 2019 Elsevier Masson SAS. All rights reserved.