Synthesis and evaluation of 4-(N,N-diarylamino)piperidines with high selectivity to the delta-opioid receptor: a combined 3D-QSAR and ligand docking study.
Podlogar BL, Poda GI, Demeter DA, Zhang SP, Carson JR, Neilson LA, Reitz AB, Ferguson DM, Drug Des Discov, 2000 - link

Molecular docking reveals a novel binding site model for fentanyl at the mu-opioid receptor.
Subramanian G, Paterlini MG, Portoghese PS, Ferguson DM, J Med Chem, 2000 Feb 10 - link

Conformational analysis and automated receptor docking of selective arylacetamide-based kappa-opioid agonists.
Subramanian G, Paterlini MG, Larson DL, Portoghese PS, Ferguson DM, J Med Chem, 1998 Nov 19 - link

Application of the message-address concept to the docking of naltrexone and selective naltrexone-derived opioid antagonists into opioid receptor models.
Metzger TG, Paterlini MG, Portoghese PS, Ferguson DM, Neurochem Res, 1996 Nov - link