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| 靶点 |
ML218 demonstrated good free fractions in both rats and humans in plasma protein binding experiments (equilibrium dialysis). ML218 is highly cleared in rats (CLint = 115 mL/min/kg) according to investigations on intrinsic clearance in liver microsomes, whereas it is only weakly to moderately cleared in human liver microsomes (CLint = 12.7 mL/min/kg)[1].
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| 体外研究 (In Vitro) |
在血浆蛋白结合实验(平衡透析)中,ML218 在大鼠和人类中均表现出良好的游离分数。根据肝微粒体内在清除率的研究,ML218 在大鼠中被高度清除(CLint = 115 mL/min/kg),而在人肝微粒体中仅被弱至中度清除(CLint = 12.7 mL/min/kg)[1 ]。
ML218 可选择性抑制丘脑底核神经元中的T型钙电流,在电压钳实验中,3 µM浓度下抑制约45%。 在电流钳模式下,3 µM ML218 可抑制 >50% 的低阈值锋电位振幅和 >60% 的反弹爆发活动。[1] |
| 体内研究 (In Vivo) |
暴露于 0.75 mg/kg 剂量氟哌啶醇的大鼠表现出强直行为,ML218 可逆转该行为(0.03-30 mg/kg;口服;一次;雄性 Sprague-Dawley 大鼠)[1]。在整个剂量范围内,游离脑和血浆中 ML218 的浓度以剂量成比例的方式增加(3 mg/kg:[血浆] = 98 nM,[脑] = 1.66 μM;10 mg/kg:[血浆] ] = 282 nM,[脑] = 5.03 μM;30 mg/kg:1.2 μM,[脑] = 17.7 μM)[1]。根据非房室药代动力学分析,ML218(1 mg/kg,IV)的平均停留时间(MRT)接近7小时,与其终末半衰期(t1/2 = 7小时)相符[1]。
在氟哌啶醇诱导的僵住症大鼠模型中,ML218 以口服剂量1、3、10和30 mg/kg呈剂量依赖性逆转僵住行为,其效果与56.6 mg/kg的A₂ₐ拮抗剂相当。[1] |
| 酶活实验 |
采用基于FLIPR的钙流实验进行钙动员检测。表达CaV3.2通道的HEK293细胞加载Fluo-4 AM染料后暴露于待测化合物,测量刺激前后荧光强度变化以评估钙内流抑制情况。[1]
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| 细胞实验 |
使用IonWorks Quattro自动膜片钳系统对CaV3.2和CaV3.3通道进行电生理评估。稳定表达这些通道的HEK293细胞接种于384孔板,经两性霉素B穿孔后,记录去极化步骤引发的电流。化合物效果以内向电流抑制百分比计算。[1]
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| 动物实验 |
Animal/Disease Models: Male SD (Sprague-Dawley) rats (275-299 g) induced by haloperidol[1]
Doses: 0.03 mg/kg, 0.1 mg/kg, 0.3 mg/kg , 1 mg/kg, 3 mg/kg, 10 mg/kg, 30 mg/kg Route of Administration: Oral administration; once Experimental Results: Reversed cataleptic behavior in rats induced by a 0.75 mg/kg dose of haloperidol. For the haloperidol-induced catalepsy model, rats were administered haloperidol (0.75 mg/kg, i.p.) 60 minutes before vehicle or ML218 (0.1–30 mg/kg, p.o.). Catalepsy was assessed 30 minutes later by measuring the latency to remove forepaws from a horizontal bar (cutoff 30 s).[1] For pharmacokinetic studies, ML218 was administered intravenously (1 mg/kg) or orally (10 mg/kg) to rats, and blood/brain samples were collected at various time points for LC/MS/MS analysis.[1] |
| 药代性质 (ADME/PK) |
Plasma protein binding of ML218 showed a free fraction of 9.1% in rat and 3.3% in human.
Inhibition of cytochrome P450 enzymes: 3A4 IC₅₀ >30 µM, 2C9 IC₅₀ >30 µM, 1A2 IC₅₀ = 10.8 µM, 2D6 IC₅₀ = 1.7 µM. Intrinsic clearance in rat liver microsomes was 115 mL/min/kg, and in human liver microsomes was 12.7 mL/min/kg. In rats, plasma clearance was 56 mL/min/kg, mean residence time was ~7 h, terminal half-life was 7 h, and brain-to-plasma AUC ratio was 7.4–16.9.[1] |
| 毒性/毒理 (Toxicokinetics/TK) |
ML218 was tested in a panel of 68 GPCRs, ion channels, and transporters at 10 µM. It showed significant binding only to sodium channel site 2 and sigma 1 receptor, with no inhibition >50% at 10 µM for other targets including L-type and N-type calcium channels, KATP, and HERG.[1]
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| 参考文献 | |
| 其他信息 |
3,5-dichloro-N-[[(1S,5R)-3-(3,3-dimethylbutyl)-3-azabicyclo[3.1.0]hexan-6-yl]methyl]benzamide is an organohalogen compound and a carbonyl compound.
ML218 was developed as a probe molecule free from intellectual property constraints through the MLPCN program. It exhibits excellent brain penetration and is intended for studying T-type calcium channel function in central nervous system disorders such as Parkinson’s disease, essential tremor, epilepsy, and pain.[1] |
| 分子式 |
C19H26CL2N2O
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|---|---|---|
| 分子量 |
369.328543186188
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| 精确质量 |
368.142
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| CAS号 |
1346233-68-8
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| 相关CAS号 |
ML218 hydrochloride;2319922-08-0;ML218-d9
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| PubChem CID |
45115620
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| 外观&性状 |
White to off-white solid powder
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| LogP |
4.9
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| tPSA |
32.3
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| 氢键供体(HBD)数目 |
1
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| 氢键受体(HBA)数目 |
2
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| 可旋转键数目(RBC) |
6
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| 重原子数目 |
24
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| 分子复杂度/Complexity |
443
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| 定义原子立体中心数目 |
2
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| SMILES |
ClC1C=C(C=C(C=1)C(NCC1[C@@H]2CN(CCC(C)(C)C)C[C@@H]21)=O)Cl
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| InChi Key |
GSJIGYLGKSBYBC-ALOPSCKCSA-N
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| InChi Code |
InChI=1S/C19H26Cl2N2O/c1-19(2,3)4-5-23-10-16-15(17(16)11-23)9-22-18(24)12-6-13(20)8-14(21)7-12/h6-8,15-17H,4-5,9-11H2,1-3H3,(H,22,24)/t15?,16-,17+
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| 化学名 |
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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 |
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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) |
配方 1 中的溶解度: ≥ 6.25 mg/mL (16.92 mM) (饱和度未知) in 10% DMSO + 90% Corn Oil (这些助溶剂从左到右依次添加,逐一添加), 澄清溶液。
例如,若需制备1 mL的工作液,可将100 μL 62.5 mg/mL 的澄清 DMSO 储备液加入到 900 μL 玉米油中并混合均匀。 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 | 2.7076 mL | 13.5380 mL | 27.0761 mL | |
| 5 mM | 0.5415 mL | 2.7076 mL | 5.4152 mL | |
| 10 mM | 0.2708 mL | 1.3538 mL | 2.7076 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) 。
Dose–response curves for ML218 (26b).ACS Chem Neurosci.2011 Dec 21;2(12):730-742. td> |
ML218 inhibits T-type calcium currents in STN neurons.ACS Chem Neurosci.2011 Dec 21;2(12):730-742. td> |
ML218 inhibits low threshold spike (LTS) in STN neurons.ACS Chem Neurosci.2011 Dec 21;2(12):730-742. td> |