生物活性
ML417 is a highly selective and brain penetrant D3 dopamine receptor (D3R) agonist, with EC50 of 38 nM. ML417 potently promotes D3R-mediated β-arrestin translocation, G protein activation, and ERK1/2 phosphorylation (pERK) while lacking activity at other dopamine receptors. ML417 interacts with the D3R in a unique manner, possibly explaining its remarkable selectivity. ML417 was also found to protect against neurodegeneration of dopaminergic neurons derived from iPSCs.
In vivo pharmacokinetics experiments in mice (using 20 mg/kg; i.p.) reveals that ML417 is brain penetrant and exhibits a plasma half-life of 3.44 hours and a brain half-life of 4.23 hours. ML417 displays a plasma Tmax of 0.5 hours and Cmax of 6500 ng/ml, and a brain Tmax of 0.25 hours and Cmax of 28000 ng/ml.
化学数据
分子量 | 379.45 |
分子式 | C22H25N3O3 |
CAS号 | 1386162-69-1 |
纯度 | >99% |
溶解性(25°C) | DMSO 45 mg/mL |
储存和运输条件 | 固体粉末: -20°C 冷藏长期储存 常温运输及临时存放 |
不同实验动物依据体表面积的等效剂量转换表(数据来源于FDA指南)
| 小鼠 | 大鼠 | 兔 | 豚鼠 | 仓鼠 | 狗 |
重量 (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
体表面积 (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
Km系数 | 3 | 6 | 12 | 8 | 5 | 20 |
动物 A (mg/kg) = 动物 B (mg/kg) × | 动物 B的Km系数 |
动物 A的Km系数 |
例如,依据体表面积折算法,将化合物用于小鼠的剂量20 mg/kg 换算成大鼠的剂量,需要将20 mg/kg 乘以小鼠的Km系数(3),再除以大鼠的Km系数(6),得到化合物用于大鼠的等效剂量为10 mg/kg。
储备液配制
以下数据基于产品分子量,对于特殊产品,请参照COA中的储备液配制条件和说明进行操作。
Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
---|
1 mM | 2.6354 mL | 13.177 mL | 26.3539 mL |
5 mM | 0.5271 mL | 2.6354 mL | 5.2708 mL |
10 mM | 0.2635 mL | 1.3177 mL | 2.6354 mL |