Potent ghrelin receptor inverse agonist (IC50 = 4.6 nM). Orally bioavailable and exhibits reasonable brain penetration. Kung et al (2012) Identification of spirocyclic piperidine-azetidine inverse agonists of the ghrelin receptor. Bioorg.Med.Chem.Lett. 22 5410 PMID:22677316 |