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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
Bitopertin R enantiomer (RG1678 R enantiomer; RO4917838 R enantiomer) is the R-enantiomer of Bitopertin. Bitopertin is a potent, noncompetitive glycine reuptake inhibitor, inhibits glycine uptake at human GlyT1 with a concentration exhibiting IC50 of 25 nM.
In Vitro
Bitopertin (RG1678) competitively blocks [ 3 H]ORG24598 binding sites at human GlyT1b in membranes from Chinese hamster ovary cells. Bitopertin potently inhibits [ 3 H]glycine uptake in cells stably expressing hGlyT1b and mGlyT1b, with IC 50 values of 25±2 nM and 22±5 nM, respectively (n=6). Conversely, Bitopertin has no effect on hGlyT2-mediated glycine uptake up to 30 μM concentration. Bitopertin has high affinity for the recombinant hGlyT1b transporter. Under equilibrium conditions (1 h at room temperature), Bitopertin displaces [ 3 H]ORG24598 binding with a K i of 8.1 nM. In hippocampal CA1 pyramidal cells, Bitopertin enhances NMDA-dependent long-term potentiation at 100 nM but not at 300 nM. Additional profiling revealed that Bitopertin (RG1678) has an excellent selectivity profile against the GlyT2 isoform (IC 50 >30 μM) and toward a panel of 86 targets including transmembrane and soluble receptors, enzymes, ion channels, and monoamine transporters (<41% inhibition at 10 μM is measured for all targets). MCE has not independently confirmed the accuracy of these methods. They are for reference only.
In Vivo
Bitopertin (RG1678) dose-dependently increases cerebrospinal fluid and striatal levels of glycine measured bymicrodialysis in rats. Additionally Bitopertin attenuates hyperlocomotion induced by the psychostimulant D-amphetamine or the NMDA receptor glycine site antagonist L-687,414 in mice. Bitopertin also prevents the hyper-response to D-amphetamine challenge in rats treated chronically with phencyclidine, an NMDA receptor open-channel blocker. Administration of vehicle has no effect on extracellular levels of striatal glycine, which remained constant throughout the experiment. In contrast, p.o. administration of Bitopertin (1-30 mg/kg) produced a dose-dependent increase in extracellular glycine levels. Bitopertin 30 mg/kg produces glycine levels 2.5 times higher than pretreatment levels. A similar dose-dependent increase in glycine concentration is observed in the CSF of rats treated p.o. with Bitopertin (1-10 mg/kg) compared with vehicle-treated animals, 3 h after drug administration. Interestingly, the level of CSF glycine increase 3 h after Bitopertin dosing is very similar to the increase in the microdialysis experiment at the same time point . In vivo pharmacokinetic studies in rat and monkey reveals that Bitopertin (RG1678) has, in both species, a low plasma clearance, an intermediate volume of distribution, a good oral bioavailability (78% for rat, 56% for monkey), and a favorable terminal half-life (5.8 h for rat, 6.4 h for monkey). The plasma protein binding is high in the two preclinical species (97%) and in human (98%). The CNS penetration of Bitopertin in rat (brain/plasma=0.7) is better than that in mouse (brain/plasma=0.5). MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Form:Solid
IC50& Target:IC50: 25 nM (GlyT1)
分类树(Taxonomy Tree)
| 界(kingdom) | 有机化合物 |
|---|---|
| 超类(Superclass) | 有机杂环化合物 |
| 类(Class) | 二嗪烷 |
| 亚类(Subclass) | 哌嗪类 |
| 中间层级节点(Intermediate Tree Nodes) | 暂无 |
| 直接上位类(Direct Parent) | 吡啶基哌嗪 |
| 其他上位类(Alternative Parents) | N-芳基哌嗪 苯磺酰基化合物 苯甲酰胺类 苯氧基化合物 酚醚 二烷基芳胺 苯甲酰衍生物 烷基芳基醚 氨基吡啶及其衍生物 咪唑内酰胺类 芳基氟化物 叔羧酸酰胺 砜类 杂芳族化合物 氨基酸及其衍生物 氮杂环化合物 碳氢化合物衍生物 有机氧化物 烷基氟化物 有机氟化物 |
| 分子骨架(Molecular Framework) | 芳香族杂单环化合物 |
| 取代基(Substituents) | 芳基醚 - 氟化烷基 - 烷基溴化物 - 氨基酸 - 氨基酸或其衍生物 - 氨基吡啶 - 芳香族杂单环化合物 - 芳基氟化物 - 芳基卤化物 - 氮杂环 - 苯甲酰胺 - 苯磺酰基 - 苯基化合物 - 苯甲酸或衍生物 - 苯甲酰 - 羧酰胺基 - 羧酸衍生物 - 二烷基芳基胺 - 乙醚 - 杂芳香族化合物 - 烃衍生物 - 咪唑内酰胺 - 单环苯基基团 - N-芳基哌嗪 - 有机硝基化合物 - 有机氧化物 - 有机氧化合物 - 有机氟化物 - 有机卤化物 - 有机氮化合物 - 有机氧化合物 - 有机硫化合物 - 苯酚醚 - 苯氧基化合物 - 吡啶 - 吡啶基哌嗪 - 磺酰基 - 磺酰基 - 三芳基胺 - 叔羧酸酰胺 |
| 描述(Description) | 该化合物属于吡啶基哌嗪类有机化合物。这类化合物具有吡啶基哌嗪骨架,其结构特征为吡啶环通过非环状单键与哌嗪环相连(非共环结构)。 |
| 外部描述符(External Descriptors) | 暂无 |
| 作用机制 | Action Type | target ID | Target Name | Target Type | Target Organism | Binding Site Name | 参考文献 |
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