SB 243213

• CAT Number: I045684
• CAS Number: 200940-22-3
• Molecular Formula: C22H19F3N4O2
• Molecular Weight: 428.41
• Purity: ≥95%
• Synonyms: 5-methyl-N-[6-(2-methylpyridin-3-yl)oxypyridin-3-yl]-6-(trifluoromethyl)-2,3-dihydroindole-1-carboxamide
• InChI: InChI=1S/C22H19F3N4O2/c1-13-10-15-7-9-29(18(15)11-17(13)22(23,24)25)21(30)28-16-5-6-20(27-12-16)31-19-4-3-8-26-14(19)2/h3-6,8,10-12H,7,9H2,1-2H3,(H,28,30)
• InChIKey: ZETBBVYSBABLHL-UHFFFAOYSA-N
• SMILES: CC1=CC2=C(C=C1C(F)(F)F)N(CC2)C(=O)NC3=CN=C(C=C3)OC4=C(N=CC=C4)C

SB 243213 is an orally active, selective and high-affinity 5-HT2C receptor antagonist with a pKi of 9.37 and a pKb of 9.8 for human 5-HT2C receptor. SB 243213 shows greater than a 100-fold selectivity over a wide range of neurotransmitter receptors, enzymes and ion channels. SB 243213 has improved anxiolytic profile and has the potential for schizophrenia and motor disorders[1].
SB 243213 shows little affinity (pKi<6) for cloned human 5-HT1A, 5-HT1B, 5-HT1E, 5- HT1F and 5-HT7 receptors. It shows weak affinity (pKi<6.5) for the cloned human 5-HT1D and D3 receptors and moderate affinity (pKi=6.7) for the cloned human D2 receptor[1].
SB 243213 (0.1-10 mg/kg, p.o. 1 h pre-test) dose-dependently and significantly increases the amount of time rats spent in social interaction over 15 min under brightly lit conditions and in an unfamiliar test box[1].
SB 243213 (0.3 mg/kg; p.o.; 1 h pre-test) significantly increases time spent in social interaction[1].

Reference

[1]. Wood MD, et al. SB-243213; a selective 5-HT2C receptor inverse agonist with improved anxiolytic profile: lack of tolerance and withdrawal anxiety. Neuropharmacology. 2001 Aug;41(2):186-99.
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