Solabegron (GW-427,353) is a drug which acts as a selective agonist for the β3 adrenergic receptor. It is being developed for the treatment of overactive bladder and irritable bowel syndrome.[1],[2],[3] It has been shown to produce visceral analgesia by releasing somatostatin from adipocytes. [4],[5]
[edit] Synthesis

K.H. Donaldson, B.G. Shearer, D.E. Uehling, U.S. Patent 6,251,925 (2001).
[edit] References
- ^ Hicks A, McCafferty GP, Riedel E, Aiyar N, Pullen M, Evans C, Luce TD, Coatney RW, Rivera GC, Westfall TD, Hieble JP. GW427353 (solabegron), a novel, selective beta3-adrenergic receptor agonist, evokes bladder relaxation and increases micturition reflex threshold in the dog. Journal of Pharmacology and Experimental Therapeutics. 2007 Oct;323(1):202-9. doi:10.1124/jpet.107.125757 PMID 17626794
- ^ Grudell AB, Camilleri M, Jensen KL, Foxx-Orenstein AE, Burton DD, Ryks MD, Baxter KL, Cox DS, Dukes GE, Kelleher DL, Zinsmeister AR. Dose-response effect of a beta3-adrenergic receptor agonist, solabegron, on gastrointestinal transit, bowel function, and somatostatin levels in health. American Journal of Physiology. Gastrointestinal and Liver Physiology. 2008 May;294(5):G1114-9. PMID 18372395
- ^ Kelleher DL, Hicks KJ, Cox DS, et al. Randomized, double-blind, placebo (PLA)- controlled, crossover study to evaluate efficacy and safety of the beta 3-adrenergic receptor agonist solabegron (SOL) in patients with irritable bowel syndrome (IBS). Neurogastroenterol Motil 2008;20 (Suppl 2):131.
- ^ Cellek S, Thangiah R, Bassil AK, Campbell CA, Gray KM, Stretton JL, Lalude O, Vivekanandan S, Wheeldon A, Winchester WJ, Sanger GJ, Schemann M, Lee K. Demonstration of functional neuronal beta3-adrenoceptors within the enteric nervous system. Gastroenterology. 2007 Jul;133(1):175-83.
- ^ Schemann M, Hafsi N, Michel K, Kober OI, Wollmann J, Li Q, Zeller F, Langer R, Lee K, Cellek S. The beta3-adrenoceptor agonist GW427353 (solabegron) decreases excitability of human enteric neurons via release of somatostatin. Gastroenterology 2009 Sep 25. [Epub ahead of print]
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Agonists: 5-FNE • 6-FNE • Amidephrine • Anisodamine • Anisodine • Cirazoline • Dipivefrine • Dopamine • Ephedrine • Epinephrine (Adrenaline) • Etilefrine • Ethylnorepinephrine • Indanidine • Levonordefrin • Metaraminol • Methoxamine • Methyldopa • Midodrine • Naphazoline • Norepinephrine (Noradrenaline) • Octopamine • Oxymetazoline • Phenylephrine • Phenylpropanolamine • Pseudoephedrine • Synephrine • Tetrahydrozoline
Antagonists: Abanoquil • Adimolol • Ajmalicine • Alfuzosin • Amosulalol • Arotinolol • Atiprosin • Benoxathian • Buflomedil • Bunazosin • Carvedilol • CI-926 • Corynanthine • Dapiprazole • DL-017 • Domesticine • Doxazosin • Eugenodilol • Fenspiride • GYKI-12,743 • GYKI-16,084 • Indoramin • Ketanserin • L-765,314 • Labetalol • Mephendioxan • Metazosin • Monatepil • Moxisylyte (Thymoxamine) • Naftopidil • Nantenine • Neldazosin • Nicergoline • Niguldipine • Pelanserin • Phendioxan • Phenoxybenzamine • Phentolamine • Piperoxan • Prazosin • Quinazosin • Ritanserin • RS-97,078 • SGB-1,534 • Silodosin • SL-89.0591 • Spiperone • Talipexole • Tamsulosin • Terazosin • Tibalosin • Tiodazosin • Tipentosin • Tolazoline • Trimazosin • Upidosin • Urapidil • Zolertine
* Note that many TCAs, TeCAs, antipsychotics, ergolines, and some piperazines like buspirone, trazodone, nefazodone, etoperidone, and mepiprazole all antagonize α1-adrenergic receptors as well, which contributes to their side effects such as orthostatic hypotension.
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