We synthesized and investigated the NMDA and σ1 receptor affinity of enantiomericallypure 2-(2-phenyl-1,3-dioxan-4-yl)ethanamines 17–26. The primary amines (R,R)-18–20 with an axially oriented phenyl moiety in position 2 interacted with high enantioselectivity (eudismic ratios 70–130) and high affinity (Ki((R,R)-19) = 13 nM) with the PCP binding site of the NMDA receptor. Introduction of an N-benzyl
Synthesis and Pharmacological Evaluation of a Potent and Selective σ1 Receptor Antagonist with High Antiallodynic Activity
作者:Tina Utech、Jens Köhler、Helmut Buschmann、Jörg Holenz、Jose Miguel Vela、Bernhard Wünsch
DOI:10.1002/ardp.201000365
日期:2011.7
and excellent selectivity against more than 60 other targets. Additionally the hERG K+ channel is not affected by 2. In the capsaicin assay 2 showed extraordinarily high analgesic activity with more than 70% analgesia at the very low dose of 0.25 mg/kg body weight, which indicates σ1antagonisticactivity. Since 2 does only interact with σ1receptors, the in‐vivo antiallodynicactivity of 2 must be