Open Access Articles- Top Results for SB-699551


Systematic (IUPAC) name
Clinical data
791789-61-2 7pxY
Chemical data
Formula C34H45N3O
511.739 g/mol
 14pxY (what is this?)  (verify)

SB-699551 is a drug which was the first compound developed to act as a selective antagonist for the serotonin receptor 5-HT5A, with selectivity of around 100x over other serotonin receptor subtypes.[1] The function of the 5-HT5A receptor remains poorly defined, but SB-699551 was found to modulate serotonin release from neurons, suggesting it acts as a presynaptic inhibitory autoreceptor similar to the 5-HT1B and 5-HT1D receptors.[2] Multiple therapeutic roles have been suggested for 5-HT5A ligands due to the presence of this receptor in several areas of the brain, but research is still at an early stage.[3]


  1. ^ Corbett, DF; Heightman, TD; Moss, SF; Bromidge, SM; Coggon, SA; Longley, MJ; Roa, AM; Williams, JA; Thomas, DR (2005). "Discovery of a potent and selective 5-ht5A receptor antagonist by high-throughput chemistry". Bioorganic & Medicinal Chemistry Letters 15 (18): 4014–8. PMID 16002289. doi:10.1016/j.bmcl.2005.06.024. 
  2. ^ Thomas DR, Soffin EM, Roberts C, Kew JN, de la Flor RM, Dawson LA, Fry VA, Coggon SA, Faedo S, Hayes PD, Corbett DF, Davies CH, Hagan JJ. SB-699551-A (3-cyclopentyl-N-[2-(dimethylamino)ethyl]-N-[(4'-{[(2-phenylethyl)amino]methyl}-4-biphenylyl)methyl]propanamide dihydrochloride), a novel 5-ht5A receptor-selective antagonist, enhances 5-HT neuronal function: Evidence for an autoreceptor role for the 5-ht5A receptor in guinea pig brain. Neuropharmacology. 2006 Sep;51(3):566-77. PMID 16846620
  3. ^ Thomas, DR (2006). "5-ht5A receptors as a therapeutic target". Pharmacology & therapeutics 111 (3): 707–14. PMID 16516972. doi:10.1016/j.pharmthera.2005.12.006. 

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