Synthesis and Pharmacological Evaluation of SNC80 Analogues with a Bridged Piperazine Ring

To discover novel δ‐opioid receptor ligands derived from SNC80 (1), a series of 6,8‐diazabicyclo[3.2.2]nonane derivatives bearing two aromatic moieties was prepared, and the affinity toward δ, μ, and κ receptors, as well as σ receptors, was investigated. After removal of the 4‐methoxybenzyl and 2,4‐...

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