Fig. 7From: 4-aroylpiperidines and 4-(α-hydroxyphenyl)piperidines as selective sigma-1 receptor ligands: synthesis, preliminary pharmacological evaluation and computational studiesMolecular surfaces map for a spipethiane and most potent σ1 ligand, b spipethiane and least potent σ1 ligand and c most potent and least potent σ1 ligandsBack to article page