SB-224289 Hydrochloride

Cas No.:	180084-26-8
Chemical Name:	Spiro[2H-furo[2,3-f]indole-3(5H),4'-piperidine], 6,7-dihydro-1'-methyl-5-[[2'-methyl-4'-(5-methyl-1,2,4-oxadiazol-3-yl)[1,1 '-biphenyl]-4-yl]carbonyl]-, monohydrochloride
SMILES:	Cl.CC1=NC(=NO1)C2=CC(C)=C(C=C2)C3=CC=C(C=C3)C(=O)N4C5=C(CC4)C=C6C(=C5)C7(CCN(C)CC7)CO6
Formula:	C32H32N4O3.HCl
M.Wt:	557.08242
Purity:	>98%
Sotrage:	0°C (short term), -20°C (long term), desiccated

Description:	SB-224289 hydrochloride is a selective 5-HT1B receptor antagonist, with anxiolytic effect.
Target:	5-HT1B receptor[2]
In Vivo:	SB-224289 (SB 224289) alone or in combination with cocaine, increases anxiety-like behavior. SB 224289 significantly reduces the amount of locomotor activity in the cocaine-treated rats. SB 224289-treated animals spend a significantly longer time in the corners than those treated with vehicle[2]. SB 224289 is a potent antagonist with an ED50 of 3.6 mg/kg, p.o in SK&F-99101-induced hypothermia in the guinea-pig. SB 224289 (4 mg/kg, p.o) reverses sumatriptan-induced inhibition of 5-HT release showing that it is also a potent terminal 5-HT autoreceptor antagonist in vivo. SB 224289 (2-16 mg/kg, p.o) does not increase 5-HT levels in the fuinea-pig frontal cortex. However, SB 224289 (4 mg/kg, p.o) causes a significantly increase in levels of 5-HT in the fuinea-pig dentate gyrus[3].
In Vitro:	SB-224289 has specific toxin-blocking ability and does not inhibit Cho1p. SB-224289 (100 μM-25 μM) shows consistent efficacy at producing Pap-A resistance. SB-224289 does not directly inhibit the PS synthase enzyme in this in vitro assay. Moreover, SB-224289 specifically blocks the activity of papuamides and not other membrane disruptors. SB-224289 is unable to protect wild-type cells against KF, but it is able to provide protection against TPap-A[1]. SB-224289 has a pKi of 8 at human cloned 5-HT1B receptors and displays more than 80 fold selectivity over the closely related 5-HT1D receptor and a range of other receptors. SB-224289 is a potent antagonist with pEC50 of 7.9±0.1. SB-224289 evokes a parallel rightward shift in the 5-HT concentration response curve with pA2 of 8.4±0.2. SB-224289 (100 nM and 1 μM) also significantly increases [3H]-5HT release in electrically stimulated guinea-pig brain cortex slices[3].
Animal Administration:	Ninety minutes before each animal is tested, it receives an ip injection of either 5 mg/kg SB 224289 in a vehicle of 10% Trappsol in sterile water or vehicle alone (total volume 1 mL/kg). This dosage of this drug is effective as a pharmacological agent. The rat is put back in its home cage until just before it is to be tested.
References:	[1]. Cassilly CD, et al. SB-224289 Antagonizes the Antifungal Mechanism of the Marine Depsipeptide Papuamide A. PLoS One. 2016 May 16;11(5):e0154932. [2]. Hoplight BJ, et al. The effects of SB 224289 on anxiety and cocaine-related behaviors in a novel object task. Physiol Behav. 2005 Apr 13;84(5):707-14. Epub 2005 Apr 13. [3]. Gaster LM, et al. The selective 5-HT1B receptor inverse agonist SB-224289, potently blocks terminal 5-HT autoreceptor function both in vitro and in vivo. Ann N Y Acad Sci. 1998 Dec 15;861:270-1.