For research use only. Not for therapeutic Use.
SB-203186 hydrochloride is a potent, selective and competitive 5-HT4 antagonist. SB-203186 hydrochloride antagonizes the 5-HT4 receptor-mediated relaxations of the carbachol-contracted rat isolated oesophagus against 5-HT with pKB values of 10.9 (rat oesophagus), 9.5 (guinea-pig ileum), and 9.0 (human colon) respectively[1][2][3].
Pretreatment with SB-203186 (10 μM) enhances the 5-HT-induced contractions of the antral strips[2].
Intraduodenally administered SB-203186 (0.3-3 mg/kg) to new-born Camborough piglets produced blockade of 5-HT-evoked tachycardia which was maximal after 20 min and lasted for more than 3 h with 0.3 mg/kg[1].
SB-203186 (0.1-3mg/kg, i.v.) surmountably antagonised 5-HT-evoked tachycardia in anaesthetized Yucatan minipigs or new-born Camborough piglets with similar potency[1].
| Catalog Number | I009302 |
| CAS Number | 207572-69-8 |
| Synonyms | 2-piperidin-1-ylethyl 1H-indole-3-carboxylate;hydrochloride |
| Molecular Formula | C16H21ClN2O2 |
| Purity | ≥95% |
| InChI | InChI=1S/C16H20N2O2.ClH/c19-16(20-11-10-18-8-4-1-5-9-18)14-12-17-15-7-3-2-6-13(14)15;/h2-3,6-7,12,17H,1,4-5,8-11H2;1H |
| InChIKey | LYMBEMCUJNDSBZ-UHFFFAOYSA-N |
| SMILES | C1CCN(CC1)CCOC(=O)C2=CNC3=CC=CC=C32.Cl |
| Reference | [1]. S G Parker, et al. Blockade of human and porcine myocardial 5-HT4 receptors by SB 203186. Naunyn Schmiedebergs Arch Pharmacol. 1995 Dec;353(1):28-35. [2]. Tohru Komada, et al. Pharmacological characterization of 5-Hydroxytryptamine-receptor subtypes in circular muscle from the rat stomach. Biol Pharm Bull. 2007 Mar;30(3):508-13. [3]. P G McLean, et al. 5-HT4 receptor antagonist affinities of SB207710, SB205008, and SB203186 in the human colon, rat oesophagus, and guinea-pig ileum peristaltic reflex. Naunyn Schmiedebergs Arch Pharmacol. 1995 Aug;352(2):132-40. |
