Synthesis and pharmacological studies of new hybrid derivatives of fentanyl active at the μ-opioid receptor and I2-imidazoline binding sites

1. Dardonville, C.
2. Fernandez-Fernandez, C.
3. Gibbons, S.-L.
4. Ryan, G.J.
5. Jagerovic, N.
6. Gabilondo, A.M.
7. Meana, J.J.
8. Callado, L.F.