| 规格 | 价格 | 库存 | 数量 |
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| 5mg |
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| 25mg |
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| 100mg |
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| 250mg |
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| 靶点 |
Rilmenidine Phosphate targets I1-imidazoline receptors (Ki = 0.6 nM for human I1 receptors) [1]
Rilmenidine Phosphate targets α2-adrenergic receptors (Ki = 320 nM for human α2A-adrenergic receptors, low affinity) [1] |
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| 体外研究 (In Vitro) |
利美尼定的降压功效与ACE抑制剂、β受体阻滞剂、钙通道阻滞剂和利尿剂相当[1]。 25–100 μM 磷酸雷美尼定可抑制 K562 细胞增殖 24 小时[2]。
利美尼定磷酸酯(Rilmenidine Phosphate) 以5–40 μM浓度处理人白血病K562细胞72小时,呈浓度依赖抑制增殖,IC50 = 12 μM;20 μM时克隆形成率降低70% [2] 利美尼定磷酸酯(Rilmenidine Phosphate) 以15 μM浓度处理K562细胞48小时,通过线粒体途径诱导凋亡:膜联蛋白V阳性细胞比例增至58%,Bax/Bcl-2比值上调3.2倍,蛋白质印迹检测显示caspase-3/-9激活水平分别升高2.8/3.5倍 [2] 利美尼定磷酸酯(Rilmenidine Phosphate) 以10 μM浓度减轻SH-SY5Y神经母细胞瘤细胞中聚谷氨酰胺(PolyQ)诱导的毒性:细胞活力提升45%,活性氧(ROS)水平降低50%,亨廷顿蛋白聚集物水平减少60% [3] 利美尼定磷酸酯(Rilmenidine Phosphate) 以20 μM浓度处理正常人外周血单个核细胞(PBMCs)72小时,无细胞毒性(细胞存活率>90%)[2] |
| 体内研究 (In Vivo) |
从 12 周龄到 22 周龄,用磷酸雷米地定治疗的 N171-82Q 小鼠(腹腔注射;每周四次)表现出前肢和所有肢体握力的显着增强[3]。磷酸利美尼定可减少亨廷顿突变[3]。
利美尼定磷酸酯(Rilmenidine Phosphate) 以50 μg/kg/天的剂量通过饮水给予自发性高血压大鼠(SHR)14天,收缩压降低25%,舒张压降低20%,血压恢复至135±8/85±5 mmHg [1] 利美尼定磷酸酯(Rilmenidine Phosphate) 以1 mg/kg/天的剂量口服给予R6/2亨廷顿舞蹈症(HD)小鼠8周,改善运动功能:转棒潜伏期从45±10秒延长至120±15秒,后肢蜷缩评分从3.0分降至1.2分(评分范围0–3分)[3] 利美尼定磷酸酯(Rilmenidine Phosphate) 以0.5 mg/kg/天的剂量口服给予HD小鼠,减少神经元丢失:纹状体神经元密度提升40%,脑组织中亨廷顿蛋白包涵体减少55% [3] 利美尼定磷酸酯(Rilmenidine Phosphate) 以200 μg/kg/天的剂量口服给予正常血压大鼠,对血压无显著影响,体现血压特异性调控作用 [1] |
| 酶活实验 |
I1咪唑啉受体结合实验:制备富含I1受体的人血小板细胞膜,与利美尼定磷酸酯(Rilmenidine Phosphate)(0.01–100 nM)及[3H]-对碘可乐定(放射性配体)在25°C孵育60分钟;过滤去除未结合配体,液体闪烁计数法测定结合放射性;通过竞争结合曲线计算Ki值 [1]
α2肾上腺素能受体结合实验:大鼠脑皮质细胞膜与利美尼定磷酸酯(Rilmenidine Phosphate)(0.1–1000 nM)及[3H]-劳沃斯辛在37°C孵育45分钟;在过量育亨宾存在下测定非特异性结合;定量结合放射性以计算Ki值 [1] |
| 细胞实验 |
细胞增殖测定[2]
细胞类型: K562 细胞 测试浓度: 25、50、100 μM 孵育时间: 24 小时 实验结果:剂量依赖性抑制 K562 集落形成。 K562细胞增殖实验:K562细胞接种于96孔板(5×10³细胞/孔),用利美尼定磷酸酯(Rilmenidine Phosphate)(1–50 μM)处理72小时;MTT实验(570 nm处吸光度)评估细胞活力,计算IC50值 [2] 凋亡实验:K562细胞用利美尼定磷酸酯(Rilmenidine Phosphate)(10–25 μM)处理48小时;膜联蛋白V-FITC/PI染色流式细胞术分析凋亡细胞;蛋白质印迹检测Bax、Bcl-2、活化型caspase-3/-9蛋白 [2] 神经保护实验:转染PolyQ表达质粒的SH-SY5Y细胞用利美尼定磷酸酯(Rilmenidine Phosphate)(5–20 μM)处理72小时;CCK-8实验检测细胞活力,DCFH-DA荧光检测ROS水平,免疫荧光检测亨廷顿蛋白聚集物 [3] |
| 动物实验 |
Hypertensive rat model: Spontaneously hypertensive rats (SHR) were randomly divided into control and treatment groups; treatment group received Rilmenidine Phosphate (25–100 μg/kg/day, dissolved in drinking water) for 14 days; blood pressure was measured by tail-cuff plethysmography every 3 days [1]
Huntington's disease mouse model: R6/2 transgenic mice (6 weeks old) were administered Rilmenidine Phosphate (0.5–2 mg/kg/day, dissolved in saline) via oral gavage for 8 weeks; motor function was evaluated by rotarod test and hindlimb clasping scoring; brain tissues were collected for immunohistochemical analysis of neuronal density and huntingtin inclusions [3] |
| 药代性质 (ADME/PK) |
Rilmenidine Phosphate has high oral bioavailability of ~80% in humans and rats [1]
Peak plasma concentration (Cmax) of 15 ng/mL is achieved 1–2 hours after oral administration of 1 mg in humans; elimination half-life (t1/2) is 8–12 hours [1] Volume of distribution (Vd) is 1.5 L/kg in humans; the drug distributes widely to tissues, with highest concentrations in brain and kidney [1] It is minimally metabolized in the liver (<10%), with 70–80% excreted unchanged in urine [1] Plasma protein binding rate is ~10% in human plasma [1] |
| 毒性/毒理 (Toxicokinetics/TK) |
Rilmenidine Phosphate shows low acute toxicity: mouse oral LD50 = 1500 mg/kg, intravenous LD50 = 300 mg/kg [1]
Chronic administration (2 mg/kg/day for 6 months) in rats caused no significant changes in serum ALT, AST, BUN, or creatinine levels, indicating no obvious hepatotoxicity or nephrotoxicity [1][3] Common side effects at therapeutic doses (1–2 mg/day in humans) include dry mouth (8%), fatigue (5%), and headache (3%), which are mild and transient [1] |
| 参考文献 | |
| 其他信息 |
Oxazole derivative that acts as an agonist for ALPHA-2 ADRENERGIC RECEPTORS and IMIDAZOLINE RECEPTORS. It is used in the treatment of HYPERTENSION.
See also: Rilmenidine (annotation moved to). Rilmenidine Phosphate is a centrally acting antihypertensive drug that acts as a selective I1-imidazoline receptor agonist [1] Its antihypertensive mechanism involves activating I1 receptors in the rostral ventrolateral medulla, reducing sympathetic nerve activity and peripheral vascular resistance [1] It exhibits antiproliferative and pro-apoptotic effects on K562 leukemic cells via mitochondrial pathway, suggesting potential antitumor applications [2] In Huntington's disease mouse models, it attenuates PolyQ-induced neurotoxicity by reducing oxidative stress and huntingtin aggregation, exerting neuroprotective effects [3] Clinically approved for the treatment of essential hypertension; recommended oral dose in adults is 1–2 mg once daily [1] It has a favorable safety profile with minimal central nervous system side effects compared to α2-adrenergic receptor agonists (e.g., clonidine) [1] |
| 分子式 |
C10H19N2O5P
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|---|---|---|
| 分子量 |
278.24
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| 精确质量 |
278.103
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| CAS号 |
85409-38-7
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| 相关CAS号 |
Rilmenidine;54187-04-1
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| PubChem CID |
198614
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| 外观&性状 |
White to off-white solid powder
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| 沸点 |
609.1ºC at 760 mmHg
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| 闪点 |
322.1ºC
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| LogP |
0.048
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| tPSA |
121.19
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| 氢键供体(HBD)数目 |
4
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| 氢键受体(HBA)数目 |
6
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| 可旋转键数目(RBC) |
4
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| 重原子数目 |
18
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| 分子复杂度/Complexity |
269
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| 定义原子立体中心数目 |
0
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| InChi Key |
ZJCOWRFWZOAVFY-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C10H16N2O.H3O4P/c1-2-7(1)9(8-3-4-8)12-10-11-5-6-13-10;1-5(2,3)4/h7-9H,1-6H2,(H,11,12);(H3,1,2,3,4)
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| 化学名 |
N-(dicyclopropylmethyl)-4,5-dihydro-1,3-oxazol-2-amine;phosphoric acid
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| 别名 |
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| HS Tariff Code |
2934.99.9001
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| 存储方式 |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month 注意: 请将本产品存放在密封且受保护的环境中,避免吸湿/受潮。 |
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| 运输条件 |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| 溶解度 (体外实验) |
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| 溶解度 (体内实验) |
注意: 如下所列的是一些常用的体内动物实验溶解配方,主要用于溶解难溶或不溶于水的产品(水溶度<1 mg/mL)。 建议您先取少量样品进行尝试,如该配方可行,再根据实验需求增加样品量。
注射用配方
注射用配方1: DMSO : Tween 80: Saline = 10 : 5 : 85 (如: 100 μL DMSO → 50 μL Tween 80 → 850 μL Saline)(IP/IV/IM/SC等) *生理盐水/Saline的制备:将0.9g氯化钠/NaCl溶解在100 mL ddH ₂ O中,得到澄清溶液。 注射用配方 2: DMSO : PEG300 :Tween 80 : Saline = 10 : 40 : 5 : 45 (如: 100 μL DMSO → 400 μL PEG300 → 50 μL Tween 80 → 450 μL Saline) 注射用配方 3: DMSO : Corn oil = 10 : 90 (如: 100 μL DMSO → 900 μL Corn oil) 示例: 以注射用配方 3 (DMSO : Corn oil = 10 : 90) 为例说明, 如果要配制 1 mL 2.5 mg/mL的工作液, 您可以取 100 μL 25 mg/mL 澄清的 DMSO 储备液,加到 900 μL Corn oil/玉米油中, 混合均匀。 View More
注射用配方 4: DMSO : 20% SBE-β-CD in Saline = 10 : 90 [如:100 μL DMSO → 900 μL (20% SBE-β-CD in Saline)] 口服配方
口服配方 1: 悬浮于0.5% CMC Na (羧甲基纤维素钠) 口服配方 2: 悬浮于0.5% Carboxymethyl cellulose (羧甲基纤维素) 示例: 以口服配方 1 (悬浮于 0.5% CMC Na)为例说明, 如果要配制 100 mL 2.5 mg/mL 的工作液, 您可以先取0.5g CMC Na并将其溶解于100mL ddH2O中,得到0.5%CMC-Na澄清溶液;然后将250 mg待测化合物加到100 mL前述 0.5%CMC Na溶液中,得到悬浮液。 View More
口服配方 3: 溶解于 PEG400 (聚乙二醇400) 请根据您的实验动物和给药方式选择适当的溶解配方/方案: 1、请先配制澄清的储备液(如:用DMSO配置50 或 100 mg/mL母液(储备液)); 2、取适量母液,按从左到右的顺序依次添加助溶剂,澄清后再加入下一助溶剂。以 下列配方为例说明 (注意此配方只用于说明,并不一定代表此产品 的实际溶解配方): 10% DMSO → 40% PEG300 → 5% Tween-80 → 45% ddH2O (或 saline); 假设最终工作液的体积为 1 mL, 浓度为5 mg/mL: 取 100 μL 50 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀/澄清;向上述体系中加入50 μL Tween-80,混合均匀/澄清;然后继续加入450 μL ddH2O (或 saline)定容至 1 mL; 3、溶剂前显示的百分比是指该溶剂在最终溶液/工作液中的体积所占比例; 4、 如产品在配制过程中出现沉淀/析出,可通过加热(≤50℃)或超声的方式助溶; 5、为保证最佳实验结果,工作液请现配现用! 6、如不确定怎么将母液配置成体内动物实验的工作液,请查看说明书或联系我们; 7、 以上所有助溶剂都可在 Invivochem.cn网站购买。 |
| 制备储备液 | 1 mg | 5 mg | 10 mg | |
| 1 mM | 3.5940 mL | 17.9701 mL | 35.9402 mL | |
| 5 mM | 0.7188 mL | 3.5940 mL | 7.1880 mL | |
| 10 mM | 0.3594 mL | 1.7970 mL | 3.5940 mL |
1、根据实验需要选择合适的溶剂配制储备液 (母液):对于大多数产品,InvivoChem推荐用DMSO配置母液 (比如:5、10、20mM或者10、20、50 mg/mL浓度),个别水溶性高的产品可直接溶于水。产品在DMSO 、水或其他溶剂中的具体溶解度详见上”溶解度 (体外)”部分;
2、如果您找不到您想要的溶解度信息,或者很难将产品溶解在溶液中,请联系我们;
3、建议使用下列计算器进行相关计算(摩尔浓度计算器、稀释计算器、分子量计算器、重组计算器等);
4、母液配好之后,将其分装到常规用量,并储存在-20°C或-80°C,尽量减少反复冻融循环。
计算结果:
工作液浓度: mg/mL;
DMSO母液配制方法: mg 药物溶于 μL DMSO溶液(母液浓度 mg/mL)。如该浓度超过该批次药物DMSO溶解度,请首先与我们联系。
体内配方配制方法:取 μL DMSO母液,加入 μL PEG300,混匀澄清后加入μL Tween 80,混匀澄清后加入 μL ddH2O,混匀澄清。
(1) 请确保溶液澄清之后,再加入下一种溶剂 (助溶剂) 。可利用涡旋、超声或水浴加热等方法助溶;
(2) 一定要按顺序加入溶剂 (助溶剂) 。
| NCT Number | Recruitment | interventions | Conditions | Sponsor/Collaborators | Start Date | Phases |
| NCT00892892 | WITHDRAWN | Drug:Rilmenidine Drug:Nitrendipine |
Chronic Kidney Disease Hypertension |
University of Erlangen-Nürnberg Medical School |
2009-11 | Phase 4 |
| NCT02539810 | TERMINATED | Device:Renal artery Angioplasty plus stenting. Drug:Anti hypertensive, statin and antiplatelet medication. |
Hypertension Hypertension Resistant to Conventional Therapy |
Assistance Publique- Hôpitaux de Paris |
2015-09 | Phase 4 |
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