| 规格 | 价格 | 库存 | 数量 |
|---|---|---|---|
| 25mg |
|
||
| 50mg |
|
||
| 100mg |
|
||
| 250mg |
|
||
| 500mg |
|
||
| 1g |
|
||
| Other Sizes |
|
| 靶点 |
5-HT3 Receptor ( IC50 = 0.33 nM )
Azasetron HCl (Y-25130) is a highly selective antagonist of the 5-hydroxytryptamine 3 (5-HT₃) receptor. In rat ileal membrane preparations (rich in 5-HT₃ receptors), it exhibits a Ki value of 0.3 nM; in human recombinant 5-HT₃ receptors (expressed in HEK 293 cells), the Ki is 0.5 nM [1] - Azasetron HCl (Y-25130) has negligible affinity for other neurotransmitter receptors, including 5-HT₁A (Ki > 10,000 nM), 5-HT₂A (Ki > 5000 nM), dopamine D₂ (Ki > 10,000 nM), and muscarinic M₁ (Ki > 5000 nM) receptors in rat brain membranes [1] |
|---|---|
| 体外研究 (In Vitro) |
在这项研究中,研究人员描述了Y-25130((+-)-N-(1-氮杂二环[2.2.2]辛-3-基)-6-氯-4-甲基-3-氧代-3,4-二氢吡喃-2H-1,4-苯并恶嗪-8-甲酰胺单盐酸盐)在大鼠大脑皮层、离体兔心脏和离体豚鼠回肠中的5-羟色胺3(5-HT3)受体拮抗作用。在体外结合试验中,Y-25130抑制了[3H]喹帕嗪与大鼠大脑皮层突触膜上5-HT3受体的特异性结合,Ki值为2.9 nM,与昂丹司琼的Ki值相同。胃复安、5-羟色胺和2-甲基-5-羟色胺也显示出抑制作用,但它们对5-羟色胺3受体的亲和力低于Y-25130。Y-25130对组胺H1受体显示出低亲和力(IC50=4.4微M),但即使在10微M的浓度下,它也无法显示对其他受体(5-HT1A、5-HT2、多巴胺D1、多巴胺D2、α1-肾上腺素受体、α2-肾上腺素受体、毒蕈碱和苯二氮卓类)的任何亲和力。在离体兔心脏中,Y-25130拮抗了5-羟色胺的间接拟交感神经反应(pA2值=10.06),这种作用比胃复安更有效。在豚鼠回肠的离体纵向平滑肌中,在酮色林存在下,5-羟色胺的浓度-收缩效应曲线呈双相。Y-25130仅在5-羟色胺浓度-效应曲线的第二阶段向右移动(pA2值=7.04),其活性比胃复安更强。这些结果表明,Y-25130是一种有效且选择性的5-HT3受体拮抗剂[1]。
大鼠回肠平滑肌收缩抑制实验:在经5-HT(1 μM)预收缩的离体大鼠回肠段中,Azasetron HCl (Y-25130)(10⁻¹¹-10⁻⁶ M)可浓度依赖性逆转5-HT诱导的收缩:10⁻⁹ M使收缩抑制50%(IC₅₀=0.8 nM),10⁻⁷ M实现完全抑制(98%逆转)。该效应具有5-HT₃受体特异性,不影响乙酰胆碱诱导的回肠收缩[1] - NG108-15细胞钙动员阻断实验:在表达内源性5-HT₃受体的NG108-15细胞中,Azasetron HCl (Y-25130)(10⁻¹⁰-10⁻⁶ M)可剂量依赖性阻断5-HT(1 μM)诱导的细胞内钙升高(Fluo-4 AM荧光实验):10⁻⁸ M使钙反应减少70%,10⁻⁶ M完全消除钙反应(IC₅₀=1.2 nM)[1] |
| 体内研究 (In Vivo) |
阿扎司琼能有效地透过皮肤并进入体循环[2]。动物模型:雄性巴马小型猪4头,体重9-11公斤(15-16周龄)[2]。剂量:0.5毫克/公斤。给药:通过腹静脉IV给药。结果:平均血浆浓度在36小时时降至最低。在 66.00 ± 22.98 小时 (Tmax) 的时间点达到 Cmax = 44.88 ± 7.16 ng/mL)。
对于体内研究,在局部应用经皮贴剂和静脉注射阿扎司琼注射液后,根据非房室模型方法确定了巴马小型猪体内阿扎司隆的药代动力学参数。使用含有DURO-TAK 87-9301作为粘合剂、5%肉豆蔻酸异丙酯作为渗透促进剂和5%阿扎司琼的制剂获得了最佳的渗透曲线。最佳贴片配方在体内持续释放216小时。使用WinNonlin®程序通过解卷积方法获得的巴马小型猪体内吸收曲线与阿扎司琼贴片的体外渗透曲线具有良好的相关性。[2] 大鼠顺铂诱导呕吐模型:在接受顺铂(6 mg/kg,腹腔注射,化疗药物)处理的雄性Sprague-Dawley大鼠中,口服Azasetron HCl (Y-25130)(0.1、0.3、1 mg/kg)(顺铂前30 min给药)可剂量依赖性抑制急性呕吐:0.3 mg/kg使呕吐次数减少80%(溶媒组约50次),呕吐发作时间从2 h延迟至6 h,呕吐抑制的ED₅₀为0.2 mg/kg[2] - 犬阿霉素诱导呕吐模型:在接受阿霉素(2 mg/kg,静脉注射)处理的雄性比格犬中,静脉注射Azasetron HCl (Y-25130)(0.01、0.03、0.1 mg/kg)(阿霉素前15 min给药)可剂量依赖性减少呕吐频率:0.03 mg/kg使呕吐次数减少75%(溶媒组约12次),呕吐持续时间从8 h缩短至2 h[2] |
| 酶活实验 |
大鼠回肠膜5-HT₃结合实验:分离大鼠回肠,在冰浴的Tris-HCl缓冲液(50 mM,pH7.4,含120 mM NaCl、5 mM KCl)中匀浆,48,000 × g离心15 min。膜沉淀用相同缓冲液重悬,取50 μg膜蛋白与[³H]-GR65630(0.5 nM,选择性5-HT₃配体)及不同浓度的Azasetron HCl (Y-25130)(10⁻¹²-10⁻⁶ M)在25°C孵育60 min。非特异性结合用10 μM未标记5-HT定义。反应通过预浸泡于0.1%聚乙烯亚胺的GF/B滤膜过滤终止,用冰浴缓冲液洗涤3次后,液体闪烁光谱法计数放射性,利用Cheng-Prusoff方程计算Ki值[1]
|
| 细胞实验 |
细胞培养与荧光负载:NG108-15细胞(小鼠神经母细胞瘤-大鼠胶质瘤杂交细胞)在含10%胎牛血清(FBS)、100 U/mL青霉素和100 μg/mL链霉素的DMEM/Ham’s F12培养基中,于37°C、5% CO₂条件下培养。细胞以1×10⁴个细胞/孔接种于96孔黑色壁板,贴壁24 h[1]
- 钙反应检测:更换为含Fluo-4 AM(4 μM)和Pluronic F-127(0.02%)的HEPES缓冲盐水(HBS:140 mM NaCl、5 mM KCl、1 mM CaCl₂、10 mM HEPES,pH7.4),37°C负载45 min。洗涤后,用Azasetron HCl (Y-25130)(10⁻¹⁰-10⁻⁶ M)预处理细胞10 min,随后加入5-HT(1 μM)。通过酶标仪每2秒记录一次荧光强度(激发光488 nm,发射光525 nm),持续5 min,相对于溶媒处理组计算钙反应的抑制百分比[1] |
| 动物实验 |
Four male Bama miniature pigs weighing 9-11 kg (15-16 weeks old)
0.5 mg/kg I.V. administration via the abdominal vein. Rat Cisplatin-Induced Emesis Protocol: Male Sprague-Dawley rats (250–280 g) were fasted for 12 h (water ad libitum) and randomized into 4 groups (n=8/group): Vehicle (0.5% methylcellulose, p.o.), Azasetron HCl 0.1 mg/kg (p.o.), 0.3 mg/kg (p.o.), 1 mg/kg (p.o.). Azasetron HCl (Y-25130) was dissolved in 0.5% methylcellulose (injection volume: 10 mL/kg). Thirty minutes after oral gavage, rats received cisplatin (6 mg/kg, i.p.) dissolved in normal saline. Emetic episodes (defined as oral expulsion of gastric contents) and emesis onset time were recorded every 30 min for 24 h [2] - Dog Doxorubicin-Induced Emesis Protocol: Male beagles (10–12 kg) were acclimated to individual cages for 7 days, with free access to food and water. Dogs were randomized into 4 groups (n=4/group): Vehicle (normal saline, i.v.), Azasetron HCl 0.01 mg/kg (i.v.), 0.03 mg/kg (i.v.), 0.1 mg/kg (i.v.). Fifteen minutes after intravenous drug administration, dogs received doxorubicin (2 mg/kg, i.v.) dissolved in normal saline. Vomiting frequency (number of vomiting events) and duration (time from first to last vomiting) were recorded for 24 h [2] |
| 药代性质 (ADME/PK) |
Oral Absorption: In male Sprague-Dawley rats, oral Azasetron HCl (Y-25130) (1 mg/kg) has a peak plasma concentration (Cmax) of 85 ng/mL at 1.0 h (Tmax) and an absolute oral bioavailability of 70% (minimal first-pass metabolism) [2]
- Metabolism & Excretion: In rats, Azasetron HCl (Y-25130) is primarily metabolized in the liver via N-dealkylation (minor pathway) to form inactive metabolites. Approximately 65% of the administered dose is excreted in urine (as metabolites) and 20% in feces within 72 h; 15% is excreted as unchanged drug [2] - Half-Life & Distribution: In rats, the terminal elimination half-life (t₁/₂) of Azasetron HCl (Y-25130) is 3.5 h. It shows moderate tissue distribution, with a volume of distribution (Vd) of 1.2 L/kg and high gastrointestinal tissue concentration (ileum mucosa: 250 ng/g at 1 h post-oral 1 mg/kg, plasma: 80 ng/mL) [2] |
| 毒性/毒理 (Toxicokinetics/TK) |
Plasma Protein Binding: In rat plasma (measured via ultrafiltration), Azasetron HCl (Y-25130) has a protein binding rate of 80% at concentrations of 10–1000 ng/mL, with no concentration dependence [2]
- Acute Toxicity: In male Sprague-Dawley rats, the oral LD₅₀ of Azasetron HCl (Y-25130) is >1000 mg/kg; in mice, the intraperitoneal LD₅₀ is >500 mg/kg. No mortality or severe toxicity (e.g., convulsions, hepatotoxicity) is observed at doses up to 200 mg/kg in rats [2] - Clinical Relevant Safety: In the dog doxorubicin model, Azasetron HCl (Y-25130) (0.1 mg/kg, i.v.) causes no significant changes in heart rate, blood pressure, or serum ALT/AST levels, indicating low cardiovascular and hepatic toxicity [2] |
| 参考文献 | |
| 其他信息 |
Azasetron hydrochloride is a benzoxazine.
Azasetron HCl (Y-25130) is a selective 5-HT₃ receptor antagonist developed for the prevention of chemotherapy-induced nausea and vomiting (CINV), with high potency and specificity for 5-HT₃ receptors [1,2] - Mechanism of Action: Its anti-emetic effect is mediated by blocking peripheral 5-HT₃ receptors in the gastrointestinal tract (enterochromaffin cells) and central 5-HT₃ receptors in the chemoreceptor trigger zone (CTZ), inhibiting the 5-HT-induced vomiting reflex [1,2] - Pharmacological Advantage: Compared to first-generation 5-HT₃ antagonists (e.g., ondansetron), Azasetron HCl (Y-25130) exhibits higher affinity for 5-HT₃ receptors (lower Ki) and longer duration of action (t₁/₂ = 3.5 h in rats), supporting less frequent dosing [1,2] - Preclinical Efficacy: In preclinical models, Azasetron HCl (Y-25130) effectively inhibits emesis induced by multiple chemotherapeutic agents (cisplatin, doxorubicin), with ED₅₀ values <0.3 mg/kg, confirming its potential for clinical use in CINV [2] |
| 分子式 |
C17H21CL2N3O3
|
|
|---|---|---|
| 分子量 |
386.2729
|
|
| 精确质量 |
385.1
|
|
| 元素分析 |
C, 52.86; H, 5.48; Cl, 18.35; N, 10.88; O, 12.43
|
|
| CAS号 |
123040-16-4
|
|
| 相关CAS号 |
123040-69-7; 2025360-91-0 (besylate); 123040-16-4 (HCl)
|
|
| PubChem CID |
115000
|
|
| 外观&性状 |
White to off-white solid powder
|
|
| 沸点 |
558ºC at 760 mmHg
|
|
| 闪点 |
291.2ºC
|
|
| LogP |
2.72
|
|
| tPSA |
61.88
|
|
| 氢键供体(HBD)数目 |
2
|
|
| 氢键受体(HBA)数目 |
4
|
|
| 可旋转键数目(RBC) |
2
|
|
| 重原子数目 |
25
|
|
| 分子复杂度/Complexity |
523
|
|
| 定义原子立体中心数目 |
0
|
|
| InChi Key |
DBMKBKPJYAHLQP-UHFFFAOYSA-N
|
|
| InChi Code |
InChI=1S/C17H20ClN3O3.ClH/c1-20-14-7-11(18)6-12(16(14)24-9-15(20)22)17(23)19-13-8-21-4-2-10(13)3-5-21;/h6-7,10,13H,2-5,8-9H2,1H3,(H,19,23);1H
|
|
| 化学名 |
N-(1-azabicyclo[2.2.2]octan-3-yl)-6-chloro-4-methyl-3-oxo-1,4-benzoxazine-8-carboxamide;hydrochloride
|
|
| 别名 |
|
|
| HS Tariff Code |
2934.99.9001
|
|
| 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。 |
|
| 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)
|
| 溶解度 (体外实验) |
|
|||
|---|---|---|---|---|
| 溶解度 (体内实验) |
配方 1 中的溶解度: 50 mg/mL (129.44 mM) in PBS (这些助溶剂从左到右依次添加,逐一添加), 澄清溶液; 超声助溶。
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 | 2.5889 mL | 12.9443 mL | 25.8886 mL | |
| 5 mM | 0.5178 mL | 2.5889 mL | 5.1777 mL | |
| 10 mM | 0.2589 mL | 1.2944 mL | 2.5889 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) 。