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PNU-22394 structure.png
CAS Number
PubChem CID
Chemical and physical data
Molar mass200.279 g/mol g·mol−1
3D model (JSmol)
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PNU-22394 is a drug which acts as an agonist at serotonin 5-HT2 receptors, with strongest binding affinity for 5-HT2A and 5-HT2C and slightly weaker at 5-HT2B, although it is only a full agonist at 5-HT2C, but partial agonist at 5-HT2A and 5-HT2B. It has anorectic effects in both animal studies and human trials,[1][2] along with "Pro-Cognitive Properties",[3] although it has never been developed for medical use.

See also[edit]


  1. ^ McCall, R. B.; Franklin, S. R.; Hyslop, D. K.; Knauer, C. S.; Chio, C. L.; Haber, C. L.; Fitzgerald, L. W. (2001). "PNU-22394, a 5-HT2C receptor agonist, reduced feeding in rodents and produces weight loss in humans" (Online). 27 (309.2). Presentation Number 309.2. Convention Center Exhibit Hall, Poster Board TT-45, San Diego, CA: Society for Neuroscience Abstracts. Retrieved 18 July 2014. Cite journal requires |journal= (help)
  2. ^ Garfield AS, Heisler LK (2009). "Pharmacological targeting of the serotonergic system for the treatment of obesity". The Journal of Physiology. 587 (1): 49–60. doi:10.1113/jphysiol.2008.164152. PMC 2670022. PMID 19029184.
  3. ^ Jensen, Anders A.; Plath, Niels; Pedersen, Martin Holst Friborg; Isberg, Vignir; et al. (2013). "Design, Synthesis, and Pharmacological Characterization of N- and O-Substituted 5,6,7,8-Tetrahydro-4H-isoxazolo[4,5-d]azepin-3-ol Analogues: Novel 5-HT2A/5-HT2C Receptor Agonists with Pro-Cognitive Properties". Journal of Medicinal Chemistry. 56 (3): 1211–1227. CiteSeerX doi:10.1021/jm301656h. ISSN 0022-2623. PMID 23301527.