SB271046

SB271046 is a potent, selective and orally active 5-HT6 receptor antagonist with pKi of 8.9, exhibits 200-fold greater selectivity over other 5-HT receptor subtypes.

目録号S2856
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SB271046 化学構造
分子量: 451.99

品質と確認

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製品情報

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  • 研究分野

製品の説明

生物活性

情報 SB271046 is a potent, selective and orally active 5-HT6 receptor antagonist with pKi of 8.9, exhibits 200-fold greater selectivity over other 5-HT receptor subtypes.
目標 5-HT6
IC50 8.92 (pKi) [1]
In vitro試験 SB-271046 also potently displaces [125I]-SB-258585 from rat and pig striatal and human caudate putamen membranes with pKis of 9.02, 8.55 and 8.81, respectively. SB-271046 competitively antagonizes 5-HT-induced stimulation of adenylyl cyclase activity with a pA2 of 8.71. [1] SB-271046 is found to be a competitive antagonist with a pA2 of 8.7 in the functional adenylyl cyclase assay which is in good agreement with its binding affinity. SB-271046 demonstrates no significant inhibitory activity at the major human P450 enzymes. [2]
In vivo試験 SB-271046 produces an increase in seizure threshold over a wide-dose range in the rat maximal electroshock seizure threshold (MEST) test, with a minimum effective dose of 0.1 mg/kg p.o. and maximum effect at 4 hours post-dose. The level of anticonvulsant activity achieves correlated well with the blood concentrations of SB-271046 (EC50 of 0.16 μM) and brain concentrations of 0.01 μM–0.04 μM at Cmax. [1] SB-271046 is moderately brain penetrant (10%), subject to low blood clearance (7.7 mL/min/kg) with a good half-life in rats (4.8 hours), and has excellent oral bioavailability (>80%). [2] SB-271046 produces 3-fold and 2-fold increases in extracellular glutamate levels in both frontal cortex and dorsal hippocampus of rats, respectively, which may be used for the treatment of cognitive and memory dysfunction. [3] SB-271046 (20 mg/kg, orally gavage) 30 min prior to training Wistar rats, is found to reverse significantly the amnesia produced by administering scopolamine (0.8 mg/kg, i.p.) in the 6 hours post-training period. SB-271046 progressively and significantly decreases platform swim angle and escape latencies over the five sequential trials on four consecutive daily sessions compared to vehicle-treated controls in aged rats. SB-271046 also improves task recall as measured by significant increases in the searching of the target quadrant on post-training days 1 and 3. [4] SB-271046 (10 mg/kg, s.c.) produces a significant, tetrodotoxin-dependent, increase in extracellular levels of both glutamate and aspartate within the frontal cortex of rats, reaching maximum values of 375.4% and 215.3% of preinjection values, respectively. [5]
臨床試験
特集

推薦された実験操作 (公開の文献だけ)

キナーゼアッセイ: [1]

Binding assay Radioligand binding is performed on membranes from HeLa cells stably transfected with the human 5-HT6 receptor and striatal tissue from adult rats, adult pigs and human caudate putamen tissues. Membranes are incubated with 1 nM [125I]-SB-258585 or 2 nM [3H]-LSD for 45 min at 37 ℃. Non-specific binding is defined by the inclusion of 10 μM methiothepin and the assay ias terminated by rapid filtration through Whatman GF/B filters.

動物実験: [1]

動物モデル Male Sprague Dawley rats
製剤 1% methyl cellulose in water
投薬量 30 mg/kg
管理 Orally
Solubility 1% methylcellulose 30 mg/mL
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)

SpeciesBaboonDogMonkeyRabbitGuinea pigRatHamsterMouse
Weight (kg)121031.80.40.150.080.02
Body Surface Area (m2)0.60.50.240.150.050.0250.020.007
Km factor202012128653
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.

Rat dose (mg/kg) = mouse dose (22.4 mg/kg) ×  mouse Km(3)  = 11.2 mg/kg
rat Km(6)
1

参考

化学情報

Download SB271046 SDF
分子量 451.99
化学式

C20H22ClN3O3S2

CAS No. 209481-20-9
保管 2年-20℃
6月-80℃in DMSO
別名
溶解度 (25°C) * In vitro DMSO 40 mg/mL (88.49 mM)
<1 mg/mL (<1 mM)
エタノール <1 mg/mL (<1 mM)
In vivo 1% methylcellulose 30 mg/mL
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
化学名 Benzo[b]thiophene-2-sulfonamide, 5-chloro-N-[4-methoxy-3-(1-piperazinyl)phenyl]-3-methyl-

研究分野

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