规格 | 价格 | 库存 | 数量 |
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1mg |
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2mg |
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5mg |
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10mg |
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25mg |
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50mg |
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100mg |
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Other Sizes |
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靶点 |
- Mouse chitotriosidase (IC50 = 0.4 μM) [1]
- Human acidic mammalian chitinase (AMCase) (IC50 = 0.6 μM) [2] |
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体外研究 (In Vitro) |
- 酶活性抑制:OAT-2068在以4-甲基伞形酮基-β-D-N,N',N''-三乙酰壳三糖苷为底物的酶活性实验中,对小鼠壳三糖苷酶呈剂量依赖性抑制,IC50为0.4 μM。该化合物对人AMCase的抑制IC50为0.6 μM [1][2]。
- 几丁质分解活性抑制:OAT-2068对几丁质酶活性的抑制与无细胞系统中几丁质颗粒降解减少相关,证实其直接酶相互作用[1][2]。 |
体内研究 (In Vivo) |
- 哮喘模型疗效:在过敏性哮喘小鼠模型中,口服OAT-2068(10 mg/kg,每日7天)显著降低气道高反应性(AHR)50%,并减少支气管肺泡灌洗液(BALF)中嗜酸性粒细胞浸润60%。这与BALF中IL-13和IL-5水平降低相关[2]。
- 炎症反应抑制:在酵母聚糖诱导的腹膜炎模型中,口服OAT-2068(20 mg/kg)使腹膜中性粒细胞积聚减少45%,TNF-α产生较对照组降低55% [1]。 |
酶活实验 |
壳三糖苷酶活性实验:重组小鼠壳三糖苷酶与OAT-2068(0.1–10 μM)在含4-甲基伞形酮基-β-D-N,N',N''-三乙酰壳三糖苷的乙酸钠缓冲液(pH 5.5)中孵育。30分钟后在360 nm激发/460 nm发射波长下测量荧光强度,计算IC50值[1]。
- AMCase抑制实验:人AMCase与OAT-2068(0.01–1 μM)在柠檬酸钠缓冲液(pH 4.5)中混合,加入底物后反应,用甘氨酸-NaOH缓冲液(pH 10.7)终止反应,通过荧光定量确定IC50 [2]。 |
细胞实验 |
几丁质诱导的细胞因子释放:用几丁质颗粒(100 μg/mL)和OAT-2068(0.1–10 μM)处理人支气管上皮细胞(16HBE),ELISA检测显示IL-8分泌呈剂量依赖性减少(IC50 = 1.2 μM)。与重组人AMCase共处理可逆转抑制作用[2]。
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动物实验 |
- Asthma model: BALB/c mice were sensitized with ovalbumin (OVA) and challenged with aerosolized OVA. OAT-2068 (10 mg/kg) was administered orally once daily for 7 days starting 24 hours before the first OVA challenge. Airway responsiveness was assessed using methacholine challenge, and BALF was analyzed for inflammatory cells and cytokines [2].
- Peritonitis model: C57BL/6 mice received intraperitoneal zymosan (2 mg/mouse) and OAT-2068 (20 mg/kg, oral) 1 hour post-zymosan. Peritoneal exudate cells were collected 4 hours later, and TNF-α levels were measured by ELISA [1]. |
药代性质 (ADME/PK) |
- Oral bioavailability: In rats, OAT-2068 demonstrated moderate oral bioavailability (F = 38%) with a plasma half-life of 2.1 hours. Maximum plasma concentration (Cmax) of 1.8 μM was achieved 1.5 hours after a 20 mg/kg oral dose [2].
- Tissue distribution: Highest drug concentrations were detected in the lungs and liver, consistent with its target localization in chitinase-expressing tissues [1][2]. |
毒性/毒理 (Toxicokinetics/TK) |
- Acute toxicity: The oral LD50 of OAT-2068 in mice exceeded 2000 mg/kg. No significant adverse effects were observed in 14-day repeated-dose studies at 100 mg/kg/day in rats [1][2].
- Safety profile: In cynomolgus monkeys, oral administration of OAT-2068 (50 mg/kg/day for 28 days) resulted in no hematological or hepatic abnormalities. Mild gastrointestinal effects (e.g., diarrhea) were noted but resolved without treatment [2]. |
参考文献 |
[1]. Discovery of selective, orally bioavailable inhibitor of mouse chitotriosidase. Bioorg Med Chem Lett. 2018 Feb 1;28(3):310-314.
[2]. Benzoxazepine-Derived Selective, Orally Bioavailable Inhibitor of Human Acidic Mammalian Chitinase. ACS Med Chem Lett. 2020 Apr 24;11(6):1228-1235. |
其他信息 |
- Mechanism of action: OAT-2068 acts as a competitive inhibitor by binding to the active site of chitotriosidase and AMCase, blocking chitin hydrolysis and subsequent cytokine release [1][2].
- Therapeutic potential: Evaluated in preclinical models of asthma and inflammatory diseases. Its selective inhibition of chitinases supports development for conditions involving chitin-driven inflammation [2]. - Structure-activity relationships: The benzoxazepine scaffold and trifluoromethyl substituent are critical for binding affinity, while the methoxyethyl linker enhances solubility and oral absorption [2]. |
分子式 |
C23H36CLN7
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分子量 |
446.03
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精确质量 |
445.272
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元素分析 |
C, 61.93; H, 8.14; Cl, 7.95; N, 21.98
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CAS号 |
2221950-65-6
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相关CAS号 |
2221950-65-6;
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PubChem CID |
145976153
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外观&性状 |
Typically exists as solid at room temperature
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LogP |
4.9
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tPSA |
77.3
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氢键供体(HBD)数目 |
2
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氢键受体(HBA)数目 |
6
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可旋转键数目(RBC) |
6
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重原子数目 |
31
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分子复杂度/Complexity |
548
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定义原子立体中心数目 |
2
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SMILES |
C[C@H]1CN([C@H](CN1CC(C)C)CC2=CC=C(C=C2)Cl)C3CCN(CC3)C4=NNC(=N4)N
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InChi Key |
WHDYUSOWFWKVTD-UWJYYQICSA-N
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InChi Code |
InChI=1S/C23H36ClN7/c1-16(2)13-30-15-21(12-18-4-6-19(24)7-5-18)31(14-17(30)3)20-8-10-29(11-9-20)23-26-22(25)27-28-23/h4-7,16-17,20-21H,8-15H2,1-3H3,(H3,25,26,27,28)/t17-,21-/m0/s1
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化学名 |
3-(4-((2S,5S)-2-(4-Chlorobenzyl)-4-isobutyl-5-methylpiperazin-1-yl)piperidin-1-yl)-1H-1,2,4-triazol-5-amine
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别名 |
OAT2068; OAT 2068; 2221950-65-6; CHEMBL4206372; 1H-1,2,4-Triazol-3-amine, 5-[4-[(2S,5S)-2-[(4-chlorophenyl)methyl]-5-methyl-4-(2-methylpropyl)-1-piperazinyl]-1-piperidinyl]-; 3-[4-[(2S,5S)-2-[(4-chlorophenyl)methyl]-5-methyl-4-(2-methylpropyl)piperazin-1-yl]piperidin-1-yl]-1H-1,2,4-triazol-5-amine; orb1685184; SCHEMBL29640518; DTXSID001103855; OAT-2068
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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 |
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) |
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
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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 | 2.2420 mL | 11.2100 mL | 22.4200 mL | |
5 mM | 0.4484 mL | 2.2420 mL | 4.4840 mL | |
10 mM | 0.2242 mL | 1.1210 mL | 2.2420 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) 。