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L-745870

产品编号 T11799L CAS 158985-00-3

L-745870 is a high-affinity and selective human dopamine D4 receptor antagonist (Ki: 0.43 nM). L-745870 has excellent brain penetration. It considerably weaker D2 (Ki: 960 nM) and D3 (Ki: 2300 nM) receptors affinity. 在相同实验条件下，摩尔浓度相同的化合物盐形式与游离态具有相同的生物活性，但盐形式 L-745870 trihydrochloride 的水溶性和稳定性通常比游离态更好。

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L-745870, CAS 158985-00-3

规格	价格/CNY		货期	数量
2 mg	￥ 347		5日内发货
100 mg	￥ 5,570		6-8周

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L-745870 的其他形式现货产品:

L-745870 trihydrochloride L-745870 hydrochloride

其他形式的 L-745870:

L-745870 trihydrochloride
现货
L-745870 hydrochloride
现货

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生物活性

化学信息

存储 & 溶解度

参考文献

相关产品

产品描述	L-745870 is a high-affinity and selective human dopamine D4 receptor antagonist (Ki: 0.43 nM). L-745870 has excellent brain penetration. It considerably weaker D2 (Ki: 960 nM) and D3 (Ki: 2300 nM) receptors affinity.
靶点活性	D2 receptor (human):960 nM(ki), D4 receptor (human):(ki)0.43 nM, D3 receptor (human):2300 nM(ki)
体外活性	L-745870 is an antagonist at human D4 receptors which displayed in vitro pharmacological studies. In that L-745870 is capable of antagonizing the ability of D4 receptors to inhibit agonist-induced stimulation of [35S]-GTPgS binding. It blocking the inhibition of forskolin-stimulated adenylate cyclase activity in the transfected human embryonic kidney (HEK293) and Chinese hamster ovary (CHO) cells and also blocking dopamine-induced inhibition of Ca2+ currents in transfected GH4C1 pituitary cells. L-745870 inhibiting D4 activation of cloned G protein-coupled inwardly rectifying K+ channels and antagonizing dopamine-induced stimulation of extracellular acidification in transfected cells[1][2].
体内活性	L-745870 has good pharmacokinetic properties (20-60% oral bioavailability and plasma t1/2 2.1-2.8 hours) in both rat and monkey, and excellent brain penetration with the high brain to plasma ratios in the rat. L-745870 has no effect on apomorphine-induced stereotypy in rats but does induce catalepsy in mice, albeit at a high dose of 100 mg/kg p.o. that is likely to occupy D2 receptors in vivo. Evaluation of L-745870 in surrogate marker assays shows that this compound is freely available for biological activity in the brain and L-745870(5 to 60 mg/kg; p.o.) treatment, would occupy 50% D4 receptors in the brain. Following oral administration to squirrel monkeys, L745870 (10 mg/kg p.o.) causes mild sedation and extrapyramidal motor symptoms, notably bradykinesia became apparent at 30 mg/kg. High doses of L-745870 might also be expected to induce extrapyramidal symptoms in primates because the levels in the CNS at these doses would be sufficient to antagonize D2 receptors. Lower doses of L-745870 has no observable behavioral effects in monkeys[1][2].

分子量	326.82
分子式	C18H19ClN4
CAS No.	158985-00-3

存储

Powder: -20°C for 3 years | In solvent: -80°C for 1 year

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参考文献

1. Bristow LJ, et al. Schizophrenia and L-745,870, a novel dopamine D4 receptor antagonist. Trends Pharmacol Sci. 1997 Jun;18(6):186-8. 2. Patel S, et al. Biological profile of L-745,870, a selective antagonist with high affinity for the dopamine D4 receptor. J Pharmacol Exp Ther. 1997 Nov;283(2):636-47. 3. Kulagowski JJ, et al. 3-((4-(4-Chlorophenyl)piperazin-1-yl)-methyl)-1H-pyrrolo-2,3-b-pyridine: an antagonist with high affinity and selectivity for the human dopamine D4 receptor. J Med Chem. 1996 May 10;39(10):1941-2.

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体内实验配液计算器

请在以下方框中输入您的动物实验信息后点击计算，可以得到母液配置方法和体内配方的制备方法：比如您的给药剂量是10 mg/kg，每只动物体重20 g，给药体积100 μL，一共给药动物10 只，您使用的配方为5% DMSO+30% PEG300+5% Tween 80+60% ddH2O。那么您的工作液浓度为2 mg/mL。

母液配置方法：2 mg 药物溶于 50 μL DMSO (母液浓度为 40 mg/mL)，如您需要配置的浓度超过该产品的溶解度，请先与我们联系。

体内配方的制备方法：取 50 μL DMSO 主液，加入 300 μL PEG300，混匀澄清，再加 50 μL Tween 80，混匀澄清，再加 600 μL ddH2O, 混匀澄清。

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