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  • 6-Methyl-1,2,3,4,5,6-hexahydro-azepino[4,5-b]indole
CAS Number
PubChem CID
Chemical and physical data
Molar mass200.285 g·mol−1
3D model (JSmol)
  • C3CNCCc2c3c1ccccc1n2C
  • InChI=1S/C13H16N2/c1-15-12-5-3-2-4-10(12)11-6-8-14-9-7-13(11)15/h2-5,14H,6-9H2,1H3 ☒N
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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 RB, Franklin SR, Hyslop DK, Knauer CS, Chio CL, Haber CL, Fitzgerald LW (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}}: Cite journal requires |journal= (help)CS1 maint: location (link)
  2. ^ Garfield AS, Heisler LK (January 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 AA, Plath N, Pedersen MH, Isberg V, Krall J, Wellendorph P, et al. (February 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-HT(2A)/5-HT(2C) receptor agonists with pro-cognitive properties". Journal of Medicinal Chemistry. 56 (3): 1211–27. CiteSeerX doi:10.1021/jm301656h. PMID 23301527.