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Naluzotan (PRX 00023) Sale

(Synonyms: N-[3-[4-[4-[(环己基甲基磺酰基)氨基]丁基]哌嗪-1-基]苯基]乙酰胺,PRX 00023) 目录号 : GC31057

Naluzotan (PRX 00023) 是一种新型的、有效的、选择性的氨基磺酰胺 5-HT1A 激动剂,IC50 和 Ki 分别为 20 nM 和 5.1 nM,用于治疗焦虑和抑郁。也是一种弱 hERG K+ 通道阻断剂,IC50 为 3800 nM。

Naluzotan (PRX 00023) Chemical Structure

Cas No.:740873-06-7

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实验参考方法

Animal experiment:

PRX-00023 and buspirone are used in the assay. Drugs are dissolved in saline vehicle prior to injections. Each pup is injected in the intraperitoneal space (i.p.) with one of several doses of PRX-00023 (0.01, 0.03, 0.05, 0.1, 0.3, 1.0, and 3.0 mg/kg in saline, for a total volume of 0.1 mg/kg). Within each litter two littermates, though occasionally one, receive the same dose of a compound. Because of the distribution of pups in litters used, no Random line pups are tested with PRX-00023 at 3.0 mg/kg for comparison to vehicle.

References:

[1]. Becker OM, et al. An integrated in silico 3D model-driven discovery of a novel, potent, and selective amidosulfonamide 5-HT1A agonist (PRX-00023) for the treatment of anxiety and depression. J Med Chem. 2006 Jun 1;49(11):3116-35.
[2]. Brunelli SA, et al. PRX-00023, a selective serotonin 1A receptor agonist, reduces ultrasonic vocalizations in infant rats bred for high infantile anxiety. Pharmacol Biochem Behav. 2009 Nov;94(1):8-15.

产品描述

Naluzotan is a novel, potent, and selective amidosulfonamide 5-HT1A agonist with IC50 and Ki of appr 20 nM and 5.1 nM, used for the treatment of anxiety and depression; Also a weak hERG K+ channel blocker, with IC50 of 3800 nM.

Naluzotan behaves as a full agonist in an in vitro cell-based functional assay with an EC50 of 20 nM. Naluzotan has significant affinity is the guinea pig sigma receptor (Ki = 100 nM), but does not inhibit cytochrome P450 isoforms (CYP) 1A2, 2C9, 2C19, 2D6, and 3A4[1].

In rats Naluzotan shows 11% oral bioavailability with a serum t1/2 of 2-3.5 h when administrated po, attaining a Cmax level of 24 ± 13 ng/mL (3 mg/kg, po). Naluzotan shows significant brain penetration, achieving a brain:serum concentration ratio of approximately 0.5 in the rat at 1 h following either intravenous or oral administration and reaching brain concentration approximately equivalent to that of buspirone. In dogs the pharmacokinetic profile of naluzotan shows 16% oral bioavailability, a serum t1/2 of 1.1 h po, and a Cmax level of 174 ± 141 ng/mL (3 mg/kg, po)[1]. PRX-00023 (0.01-0.05 mg/kg, i.p.) significantly reduces USV rates, but done of these doses produce sedation in rats[2].

[1]. Becker OM, et al. An integrated in silico 3D model-driven discovery of a novel, potent, and selective amidosulfonamide 5-HT1A agonist (PRX-00023) for the treatment of anxiety and depression. J Med Chem. 2006 Jun 1;49(11):3116-35. [2]. Brunelli SA, et al. PRX-00023, a selective serotonin 1A receptor agonist, reduces ultrasonic vocalizations in infant rats bred for high infantile anxiety. Pharmacol Biochem Behav. 2009 Nov;94(1):8-15.

Chemical Properties

Cas No. 740873-06-7 SDF
别名 N-[3-[4-[4-[(环己基甲基磺酰基)氨基]丁基]哌嗪-1-基]苯基]乙酰胺,PRX 00023
Canonical SMILES CC(NC1=CC=CC(N2CCN(CCCCNS(=O)(CC3CCCCC3)=O)CC2)=C1)=O
分子式 C23H38N4O3S 分子量 450.64
溶解度 Soluble in DMSO 储存条件 Store at -20°C
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1 mM 2.2191 mL 11.0953 mL 22.1907 mL
5 mM 0.4438 mL 2.2191 mL 4.4381 mL
10 mM 0.2219 mL 1.1095 mL 2.2191 mL
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Research Update

Effects of PRX-00023, a novel, selective serotonin 1A receptor agonist on measures of anxiety and depression in generalized anxiety disorder: results of a double-blind, placebo-controlled trial

PRX-00023, a serotonin 1A receptor agonist, was designed to provide high potency and selectivity for its target. To assess the possible therapeutic utility in anxiety, a randomized, double-blind, placebo-controlled trial was conducted in 311 subjects who met the criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, for generalized anxiety disorder. All subjects underwent a 1-week placebo run-in and were randomized to receive once-daily capsules containing either PRX-00023 (80 mg/d) or placebo for an additional 8 weeks. The primary outcome measure was the Hamilton Anxiety Scale (HAM-A). The Montgomery-Asberg Depression Rating Scale was used as a secondary endpoint to measure depressive symptoms. Statistical testing was performed with analysis of covariance, between baseline and week 8, with baseline values as a covariate. The anxiolytic effect of PRX-00023, compared with placebo, showed trends across all anxiolytic measures but failed to reach significance on the primary endpoint (HAM-A total score). Among the components of the HAM-A total score, the anxious mood item was significantly different from placebo in the PRX-00023-treated group (-1.015 vs -0.748; P = 0.02). The scores of the Montgomery-Asberg Depression Rating Scale were significantly improved compared with placebo at week 8 (-4.5 vs -1.6; P = 0.0094 in the last observation carried forward analysis). PRX-00023 was well tolerated; of note, there were no drug-related serious adverse events, and more patients discontinued due to adverse events in the placebo group (2.9%) than in the PRX-00023 group (1.4%). The most common adverse event was headache, observed in 15.7% and 10.9% of PRX-00023- and placebo-treated patients, respectively. Furthermore, there was no evidence of impaired sexual function, as measured by the Massachusetts General Hospital Sexual Function Scale. Collectively, these results support further clinical investigation of higher doses of PRX-00023 in anxiety and depression.

Tolerability, pharmacokinetics, and neuroendocrine effects of PRX-00023, a novel 5-HT1A agonist, in healthy subjects

PRX-00023 is a novel, nonazapirone 5-HT1A agonist in clinical development for treatment of affective disorders. The objectives of the initial clinical phase I studies (a single ascending dose study and multiple dose-ascending and high-dose titration studies) were to measure the pharmacokinetics, pharmacodynamic (neuroendocrine) effects, and tolerability of PRX-00023 in healthy subjects. The studies evaluated 10-mg to 150-mg doses of PRX-00023 in up to 112 healthy male and female subjects aged 18 to 54 years. Single and multiple oral doses of PRX-00023 were found to be safe and well tolerated in healthy subjects. PRX-00023 was absorbed relatively rapidly, with a tmax of 0.5 to 2 hours, and eliminated with a half-life of approximately 12 hours. PRX-00023 treatment transiently increased blood prolactin levels 2 to 3 hours after administration, consistent with its mechanism as a 5-HT1A agonist.

PRX-00023, a selective serotonin 1A receptor agonist, reduces ultrasonic vocalizations in infant rats bred for high infantile anxiety

To address the development of early anxiety disorders across the lifespan, the High USV line of rats was bred based on rates of infant ultrasonic vocalization in the 40-50 kHz range of predominant frequencies (USV) to maternal separation at postnatal day (P) 10. In this study, rates of USV in High line infants (pups: Postnatal Day 11+/-1) were compared to those of randomly-bred controls in response to EPIX compound PRX-00023, a unique serotonin (5-HT) agonist, acting exclusively at the 5-HT1A receptor, or buspirone, a nonspecific 5HT1A agonist. After testing, pups were examined for sedation and other drug-related effects. The results indicated that all doses of buspirone reduced USV rates in isolation, consistent with other reports. PRX-00023 significantly reduced USV rates at the lowest doses (0.01-0.05 mg/kg). None of the PRX-00023 doses produced sedation, whereas all but the lowest dose of buspirone (0.1 mg/kg) produced sedation effects. The results suggest that this compound alleviates infantile anxiety-like behavior with great specificity in rats bred for high anxiety/depressive phenotypes by selectively targeting 5-HT1A receptors, possibly by both pre- and post-synaptic mechanisms.

Drug evaluation: PRX-00023, a selective 5-HT1A receptor agonist for depression

EPIX Pharmaceuticals Inc (formerly Predix Pharmaceuticals Inc) is developing PRX-00023, an oral aryl piperazine 5-HT1A agonist, for the potential treatment of depression. While initially in development for generalized anxiety disorder, EPIX is now only focusing on the development of PRX-00023 for depression. In November 2006, EPIX reported that it planned to initiate a phase II trial in patients with depression in the first half of 2007.

An integrated in silico 3D model-driven discovery of a novel, potent, and selective amidosulfonamide 5-HT1A agonist (PRX-00023) for the treatment of anxiety and depression

We report the discovery of a novel, potent, and selective amidosulfonamide nonazapirone 5-HT1A agonist for the treatment of anxiety and depression, which is now in Phase III clinical trials for generalized anxiety disorder (GAD). The discovery of 20m (PRX-00023), N-{3-[4-(4-cyclohexylmethanesulfonylaminobutyl)piperazin-1-yl]phenyl}acetamide, and its backup compounds, followed a new paradigm, driving the entire discovery process with in silico methods and seamlessly integrating computational chemistry with medicinal chemistry, which led to a very rapid discovery timeline. The program reached clinical trials within less than 2 years from initiation, spending less than 6 months in lead optimization with only 31 compounds synthesized. In this paper we detail the entire discovery process, which started with modeling the 3D structure of 5-HT1A using the PREDICT methodology, and then performing in silico screening on that structure leading to the discovery of a 1 nM lead compound (8). The lead compound was optimized following a strategy devised based on in silico 3D models and realized through an in silico-driven optimization process, rapidly overcoming selectivity issues (affinity to 5-HT1A vs alpha1-adrenergic receptor) and potential cardiovascular issues (hERG binding), leading to a clinical compound. Finally we report key in vivo preclinical and Phase I clinical data for 20m tolerability, pharmacokinetics, and pharmacodynamics and show that these favorable results are a direct outcome of the properties that were ascribed to the compound during the rational structure-based discovery process. We believe that this is one of the first examples for a Phase III drug candidate that was discovered and optimized, from start to finish, using in silico model-based methods as the primary tool.