Evaluation of the analgesic effect of 4-anilidopiperidine scaffold containing ureas and carbamates.

Monti, Ludovica; Stefanucci, Azzurra; Pieretti, Stefano; Marzoli, Francesca; Fidanza, Lorenzo; Mollica, Adriano; Mirzaie, Sako; Carradori, Simone; De Petrocellis, Luciano; Schiano Moriello, Aniello; Benyhe, Sándor; Zádor, Ferenc; Szűcs, Edina; Ötvös, Ferenc; Erdei, Anna I.; Samavati, Reza; Dvorácskó, Szabolcs; Tömböly, Csaba; Novellino, Ettore

Fentanyl is a powerful opiate analgesic typically used for the treatment of severe and chronic pain, but its prescription is strongly limited by the well-documented side-effects. Different approaches have been applied to develop strong analgesic drugs with reduced pharmacologic side-effects. One of the most promising is the design of multitarget drugs. In this paper we report the synthesis, characterization and biological evaluation of twelve new 4-anilidopiperidine (fentanyl analogues).In vivohot-Plate test, shows a moderate antinociceptive activity for compoundsOMDM585andOMDM586, despite the weak binding affinity on both μ and δ-opioid receptors. A strong inverse agonist activity in the GTP-binding assay was revealed suggesting the involvement of alternative systems in the brain. Fatty acid amide hydrolase inhibition was evaluated, together with binding assays of cannabinoid receptors. We can conclude that compoundsOMDM585and586are capable to elicit antinociception due to their multitarget activity on different systems involved in pain modulation.

PIPERIDINE; ANALGESICS; ANILIDES; UREASE; CARBAMATES; FENTANYL; CHRONIC pain treatment; THERAPEUTICS

Journal of Enzyme Inhibition & Medicinal Chemistry, 2016, Vol 31, Issue 6, p1638

1475-6366

Academic Journal

10.3109/14756366.2016.1160902