Synthesis and binding assays of novel 3,3-DIMETHYLPIPERIDINE (cas 1193-12-0) derivatives with various lipophilicities as σ1 receptor ligands
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Add time:07/14/2019 Source:sciencedirect.com
Starting from two carbocyclic analogs, a series of 3,3-DIMETHYLPIPERIDINE (cas 1193-12-0) derivatives was prepared and tested in radioligand binding assays at σ1 and σ2 receptors, and at Δ8–Δ7 sterol isomerase (SI) site. The novel compounds mostly bear heterocyclic rings or bicyclic nucleus of differing lipophilicities. Compounds 18a and 19a,b demonstrated the highest σ1 affinity (Ki = 0.14–0.38 nM) with a good selectivity versus σ2 binding. Among them, 18a had the lowest C log D value (3.01) and only 19b was selective versus SI too. Generally, it was observed that more planar and hydrophilic heteronuclei conferred a decrease in affinity for both σ receptor subtypes.
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