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Guanoxabenz hydrochloride

更新时间:2025-09-21 01:47:31

Guanoxabenz hydrochloride结构式
Guanoxabenz hydrochloride结构式
品牌特惠专场
常用名 Guanoxabenz hydrochloride 英文名 3-[(2,6-dichlorophenyl)methylene]-N-hydroxycarbazamidine monohydrochloride
CAS号 23256-40-8 分子量 283.542
密度 N/A 沸点 N/A
分子式 C8H9Cl3N4O 熔点 N/A
MSDS N/A 闪点 N/A

 Guanoxabenz hydrochloride用途


盐酸胍氧苄(羟基胍苄)是一种α2肾上腺素能受体激动剂,Ki为4000 nM,α2A肾上腺素受体的完全激活形式为40 nM[1][2][3]。

 Guanoxabenz hydrochloride名称

英文名 2-(2,6-Dichlorobenzylidene)-N-hydroxyhydrazinecarboximidamide hydrochloride (1:1)
英文别名 更多

 Guanoxabenz hydrochloride生物活性

描述 盐酸胍氧苄(羟基胍苄)是一种α2肾上腺素能受体激动剂,Ki为4000 nM,α2A肾上腺素受体的完全激活形式为40 nM[1][2][3]。
相关类别
体外研究 一系列N-羟基胍类似物和一系列代谢抑制剂(包括别嘌呤醇、1-氯-2,4-二硝基苯、5,59-二硫双歧-(2-硝基苯甲酸)、西巴克隆蓝、苯基对苯醌、地多克斯和三苯氧胺)似乎可以抑制高亲和力胍唑的形成。通过将膜与胍唑酮的LW03 N-羟基胍类似物预孵育,胍唑酮高亲和力结合的形成也以时间和浓度依赖的方式受到抑制[1]。脾脏胞质部分介导胍唑酮还原为胍唑酮,后者对大鼠α2A肾上腺素受体的亲和力几乎是胍唑酮本身的100倍[2]。
体内研究 Guanoxabenz和guanabenz均为中枢活性降压药。在添加NADH或NADPH辅因子后,在大鼠脑膜中诱导高亲和力胍氧苄结合。大鼠大脑皮层含有一种酶活性,可激活胍氧苄,从而形成对α2-肾上腺素受体具有高度亲和力的代谢物[3]。Guanoxabenz(0.1-3 mg/kg,i.p.)可导致运动活动的剂量相关减少;之所以选择1 mg/kg的剂量,是因为这会导致明显和持续的行为活性低下[4]。动物模型:大鼠[4]。剂量:0.5 mg/kg(RX 781094或生理盐水载体在激动剂达到峰值时静脉注射(可乐定20min,胍唑嗪30min)。行政:知识产权。结果:RX 781094(0.1-1.0 mg/kg,静脉注射)能快速(<5组)完全拮抗可乐定和胍恶嗪引起的脑电图和行为效应。
参考文献

[1]. Uhlén S, et al. Characterization of the enzymatic activity for biphasic competition by guanoxabenz (1-(2,6-dichlorobenzylidene-amino)-3-hydroxyguanidine) at alpha2-adrenoceptors. I. Description of an enzymatic activity in spleen membranes. Biochem Pharmacol. 1998 Nov 1;56(9):1111-9.

[2]. Dambrova M, et al. Characterization of the enzymatic activity for biphasic competition by guanoxabenz (1-(2,6-dichlorobenzylidene-amino)-3-hydroxyguanidine) at alpha2-adrenoceptors. II. Description of a xanthine-dependent enzymatic activity in spleen cytosol. Biochem Pharmacol. 1998 Nov 1;56(9):1121-8.

[3]. Dambrova M, et al. Characterization of Guanoxabenz reducing activity in rat brain. Pharmacol Toxicol. 1998 Oct;83(4):158-63.

[4]. P W Dettmar, et al. Neuropharmacological studies in rodents on the action of RX 781094, a new selective alpha 2-adrenoceptor antagonist. Neuropharmacology. 1983 Jun;22(6):729-37.

 Guanoxabenz hydrochloride物理化学性质

分子式 C8H9Cl3N4O
分子量 283.542
精确质量 281.984192

 Guanoxabenz hydrochloride英文别名

2-(2,6-Dichlorobenzylidene)-N-hydroxyhydrazinecarboximidamide hydrochloride (1:1)
EINECS 248-675-2
Hydrazinecarboximidamide, 2-[(2,6-dichlorophenyl)methylene]-N-hydroxy-, hydrochloride (1:)
EINECS 245-532-6
Hydrazinecarboximidamide, 2-[(2,6-dichlorophenyl)methylene]-N-hydroxy-, hydrochloride (1:1)
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Guanoxabenz hydrochloride价格

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