| 规格 | 价格 | 库存 | 数量 |
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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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| 靶点 |
SCD1 inhibitor-3 (compound 17a) is a potent inhibitor of stearoyl-CoA desaturase-1 (SCD1).
Mouse SCD1 (liver microsomes) IC₅₀ = 7 nM Human HepG2 cellular SCD1 IC₅₀ = 103 nM Selective over D5D and D6D (no significant inhibition at 10 µM) |
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| 体外研究 (In Vitro) |
化合物 17a 在小鼠肝脏微粒体试验中强效抑制SCD1酶活性,IC₅₀为7 nM。在人HepG2细胞试验中,对SCD1的IC₅₀为103 nM。该化合物对相关的脂肪酸去饱和酶D5D和D6D具有选择性,在10 µM浓度下未显示显著抑制。在大鼠肝微粒体中代谢稳定性为30分钟孵育后剩余66%。在Caco-2细胞中测得的渗透性为Papp(a-b)= 12 × 10⁻⁶ cm/s,Papp(b-a)= 19 × 10⁻⁶ cm/s。
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| 体内研究 (In Vivo) |
SCD1抑制剂-3(化合物17a)(5毫克/千克;口服;4小时)使血浆C16:1/C16:0甘油三酯去饱和指数降低54%[1]。 SCD1抑制剂-3(2~10 mg/kg;口服;4小时)可以剂量反应性降低血浆甘油三酯去饱和指数[1]。
化合物 17a 在Lewis大鼠急性模型中能够剂量依赖性地降低血浆C16:1n7/C16:0甘油三酯去饱和指数,口服给药4小时后ED₅₀约为4.6 mg/kg。在5 mg/kg剂量下,能降低血浆DI达54%。在雌性Sprague-Dawley大鼠中进行的为期10天、100 mg/kg(约20倍有效剂量)重复给药安全性研究中,未观察到机制相关的不良反应(如红眼、皮肤干燥、脱毛)或一般健康问题。 |
| 酶活实验 |
SCD1酶活性测定使用小鼠肝脏微粒体进行。该实验通过测量SCD1介导的从(9,10-³H)标记的硬脂酰辅酶A底物释放的氚化水的减少来评估活性。将反应混合物在适当条件下孵育,并通过量化³H₂O的释放作为SCD1活性的指标。IC₅₀值根据化合物的抑制剂量反应曲线计算得出。
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| 细胞实验 |
SCD1细胞活性在人肝癌HepG2细胞中进行评估。细胞用化合物处理并与¹⁴C-硬脂酸底物共孵育。通过测量形成的¹⁴C-油酸产物的量来确定SCD1活性,使用适当的提取和检测方法。IC₅₀值根据抑制曲线得出。
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| 动物实验 |
Animal/Disease Models: Lewis rat[1]
Doses: 5 mg/kg Route of Administration: Po; 4 hrs (hrs (hours)) Experimental Results: Plasma C16:1/C16:0 triglyceride desaturation index diminished by 54%. Animal/Disease Models: Lewis rat[1] Doses: 2~10 mg/kg Route of Administration: Po; 4 hrs (hrs (hours)) Experimental Results: There was a dose-responsive decrease in plasma triglyceride desaturation index. For acute efficacy studies, Lewis rats were used. Compound 17a was formulated in 1% carboxymethyl cellulose (low viscosity), 0.2% Tween 20, and 98.8% water, and administered orally at doses ranging from 2 to 10 mg/kg. Plasma was collected 4 hours post-dose for measurement of C16:1/C16:0 triglyceride desaturation index. For safety assessment, female Sprague-Dawley rats were dosed orally with 100 mg/kg of compound once daily for 10 consecutive days. Animals were monitored daily for general health and specific observations on eyes and skin. For pharmacokinetic studies, Lewis rats received intravenous administration (1 mg/kg) formulated in 10% DMA, 10% solutol, 50% propylene glycol, and 30% water, or oral administration (5 mg/kg) in the CMC/Tween suspension described above. Blood samples were collected at various time points for plasma concentration analysis. |
| 药代性质 (ADME/PK) |
In Lewis rats following intravenous administration (1 mg/kg), compound 17a showed a clearance (Cl) of 1.1 L/h/kg, volume of distribution at steady state (Vss) of 1.2 L/kg, and terminal half-life (t₁/₂) of 1.3 h.
Following oral administration (5 mg/kg), Cmax was 2.3 µM, Tmax was 0.5 h, AUC₀–₂₄ h was 6.0 µM·h, terminal half-life was 4.0 h, and oral bioavailability (F) was 52%. In the 10-day safety study at 100 mg/kg, the plasma exposure (AUC₀–₂₄ h) on Day 11 was 207 µM·h, indicating a >34-fold exposure margin over the efficacious exposure (AUC = 6.0 µM·h at 5 mg/kg). |
| 毒性/毒理 (Toxicokinetics/TK) |
Compound 17a did not elicit any mechanism-based adverse effects (e.g., ocular or dermal toxicity) or general health issues in female Sprague-Dawley rats after 10-day repeat oral dosing at 100 mg/kg. Plasma exposure at this dose was high (AUC = 207 µM·h), suggesting a wide safety margin relative to efficacious exposure. The compound showed no significant inhibition of D5D or D6D at 10 µM, indicating good selectivity and reduced risk of off-target toxicity related to HUFA synthesis.
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| 参考文献 | |
| 其他信息 |
Compound 17a is a pyrazolyltriazolone-based SCD1 inhibitor discovered through SAR optimization of triazolone derivatives. It was designed to improve the adverse effect profile associated with systemic SCD1 inhibition (e.g., skin and eye toxicity) by modifying physicochemical properties (lower cLogP, higher tPSA) while maintaining potent enzymatic and cellular activity. The compound represents a promising candidate for the treatment of metabolic diseases such as obesity, type 2 diabetes, and dyslipidemia, as well as skin conditions like acne, due to its potent SCD1 inhibition and improved safety profile in preclinical models.
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| 分子式 |
C19H16FN7O2
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|---|---|
| 分子量 |
393.37
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| 精确质量 |
393.14
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| 元素分析 |
C, 58.01; H, 4.10; F, 4.83; N, 24.92; O, 8.13
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| CAS号 |
1282606-48-7
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| PubChem CID |
51354459
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| 外观&性状 |
White to off-white solid powder
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| LogP |
1.4
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| tPSA |
107
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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 |
29
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| 分子复杂度/Complexity |
626
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| 定义原子立体中心数目 |
0
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| InChi Key |
FAIXKYSRYKWWGK-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C19H16FN7O2/c20-15-5-3-13(4-6-15)11-27-19(29)26(12-23-27)17-8-16(24-25-17)18(28)22-10-14-2-1-7-21-9-14/h1-9,12H,10-11H2,(H,22,28)(H,24,25)
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| 化学名 |
3-[1-[(4-fluorophenyl)methyl]-5-oxo-1,2,4-triazol-4-yl]-N-(pyridin-3-ylmethyl)-1H-pyrazole-5-carboxamide
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| 别名 |
SCD1 inhibitor-3; SCD-1 inhibitor-3; SCD 1 inhibitor-3;
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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) |
DMSO : ≥ 125 mg/mL (~317.77 mM)
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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 | 2.5421 mL | 12.7107 mL | 25.4214 mL | |
| 5 mM | 0.5084 mL | 2.5421 mL | 5.0843 mL | |
| 10 mM | 0.2542 mL | 1.2711 mL | 2.5421 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) 。