Synthesis and pharmacological characterization of 5-phenyl-2-[2-(1-piperidinylcarbonyl)phenyl]-2,3-dihydro-1H-pyrrolo[1,2-c]imidazol-1-ones: a new class of Neuropeptide S antagonists.

A new lead series was identified in the NPS antagonist field. The compound was prepared following up experimental observations rationalized with computational chemistry techniques and rational design.