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Synthesis, nicotinic acetylcholine receptor binding, in vitro and in vivo pharmacology properties of 3'-(substituted pyridinyl)-deschloroepibatidine analogs.

Abstract：

:Over the last several years we have synthesized and studied the in vitro and in vivo nAChR pharmacological properties of epibatidine (4) analogs. In this study we report the synthesis, nAChR in vitro and in vivo pharmacological properties of 3'-(substituted pyridinyl)-deschloroepibatidine analogs (5a-e and 6a-e). All of the analogs had high binding affinity for α4β2(∗)-nAChRs. Several of the analogs were potent antagonists of α4β2-nAChRs in in vitro efficacy tests and were potent antagonists of nicotine-induced antinociception in the mouse tail-flick test. Compound 6b had a Ki = 0.13 nM in the binding assay, 25- and 46-fold selectivity for the α4β2(∗)-nAChR relative to the α3β4- and α7-nAChR, respectively, in the in vitro efficacy test and an AD50 = 0.13 μg/kg in the tail-flick test. Combined with favorable calculated physiochemical properties compared to varenicline, our findings suggest that 6b should be considered for development as a potential pharmacotherapy for treating nicotine addiction and other CNS disorders.

journal_name

Bioorg Med Chem

journal_title

Bioorganic & medicinal chemistry

authors

Ondachi PW,Ye Z,Castro AH,Luetje CW,Damaj MI,Mascarella SW,Navarro HA,Carroll FI

doi

10.1016/j.bmc.2015.07.021

subject

Has Abstract

pub_date

2015-09-01 00:00:00

pages

5693-701

issue

17

eissn

0968-0896

issn

1464-3391

pii

S0968-0896(15)00604-5

journal_volume

23

pub_type

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