ML380
目录号 : GC61802
ML380是一种有效的，亚型选择性和可透过血脑屏障的M5mAChR正变构调节剂(PAM)，对人和大鼠M5的EC50值分别为190和610nM。ML380对M1和M3mAChR亚型具有中等选择性。ML380可以增加Ach对M5mAChR的亲和力。
Cas No.:1627138-52-6
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
ML380 is a potent, subtype-selective, and brain-penetrant positive allosteric modulator (PAM) of M5 mAChR, with EC50s of 190 and 610 nM for human and rat M5, respectively. ML380 exhibits moderate selectivity versus the M1 and M3 mAChR subtypes. ML380 could increase the affinity of ACh for the M5 mAChR[1][2][3].
ML380 (0.01 nM-100 μM) robustly stimulates inositol phosphate (IP) accumulation and Ca2+ mobilization in CHO-hM5 cells, with pEC50s of 5.33 and 5.71, respectively[2].ML380 (0.01-30 μM) increases the ACh-stimulated IP accumulation and Ca2+ mobilization in CHO-hM5 cells[2].
ML380 (1 mg/kg; i.v.) displays high clearance (66 mL/min/kg), a moderate volume of distribution (1.6 L/kg), and a short half-life (t1/2, 22 min) in rats[1].
[1]. Gentry PR, et, al. Development of a highly potent, novel M5 positive allosteric modulator (PAM) demonstrating CNS exposure: 1-((1H-indazol-5-yl)sulfoneyl)-N-ethyl-N-(2-(trifluoromethyl)benzyl)piperidine-4-carboxamide (ML380). J Med Chem. 2014 Sep 25;57(18):7804-10. [2]. Berizzi AE, et, al. Molecular Mechanisms of Action of M5 Muscarinic Acetylcholine Receptor Allosteric Modulators. Mol Pharmacol. 2016 Oct;90(4):427-36. [3]. Berizzi AE, et, al. Structure-Activity Relationships of Pan-Gα q/11 Coupled Muscarinic Acetylcholine Receptor Positive Allosteric Modulators. ACS Chem Neurosci. 2018 Jul 18;9(7):1818-1828.
| Cas No. | 1627138-52-6 | SDF | |
| Canonical SMILES | O=C(C1CCN(S(=O)(C2=CC3=C(NN=C3)C=C2)=O)CC1)N(CC)CC4=CC=CC=C4C(F)(F)F | ||
| 分子式 | C23H25F3N4O3S | 分子量 | 494.53 |
| 溶解度 | DMSO: 100 mg/mL (202.21 mM) | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.0221 mL | 10.1106 mL | 20.2212 mL |
| 5 mM | 0.4044 mL | 2.0221 mL | 4.0442 mL |
| 10 mM | 0.2022 mL | 1.0111 mL | 2.0221 mL |
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动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
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| % DMSO % % Tween 80 % saline | ||||||||||
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2.
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Development of a highly potent, novel M5 positive allosteric modulator (PAM) demonstrating CNS exposure: 1-((1H-indazol-5-yl)sulfoneyl)-N-ethyl-N-(2-(trifluoromethyl)benzyl)piperidine-4-carboxamide (ML380)
J Med Chem 2014 Sep 25;57(18):7804-10.PMID:25147929DOI:10.1021/jm500995y.
A functional high throughput screen identified a novel chemotype for the positive allosteric modulation (PAM) of the muscarinic acetylcholine receptor (mAChR) subtype 5 (M5). Application of rapid analog, iterative parallel synthesis efficiently optimized M5 potency to arrive at the most potent M5 PAMs prepared to date and provided tool compound 8n (ML380) demonstrating modest CNS penetration (human M5 EC50 = 190 nM, rat M5 EC50 = 610 nM, brain to plasma ratio (Kp) of 0.36).
Molecular Mechanisms of Action of M5 Muscarinic Acetylcholine Receptor Allosteric Modulators
Mol Pharmacol 2016 Oct;90(4):427-36.PMID:27461343DOI:10.1124/mol.116.104182.
Recently, the first subtype-selective allosteric modulators of the M5 muscarinic acetylcholine receptor (mAChR) have been described, but their molecular mechanisms of action remain unknown. Using radioligand-binding and functional assays of inositol phosphate (IP) accumulation and Ca(2+) mobilization in a recombinant cell line stably expressing the human M5 mAChR, we investigated the effects of the positive allosteric modulator (PAM), ML380, and negative allosteric modulator, ML375. In functional assays, ML380 caused robust enhancements in the potency of the full agonists, acetylcholine (ACh), carbachol, and oxotremorine-M, while significantly increasing the maximal response to the partial agonist, pilocarpine. ML380 also demonstrated direct allosteric agonist activity. In contrast, ML375 displayed negative cooperativity with each of the agonists in a manner that varied with the pathway investigated and progressively reduced the maximal pilocarpine response. Radioligand-binding affinity cooperativity estimates were consistent with values derived from functional assays in some instances but not others, suggesting additional allosteric effects on orthosteric ligand efficacy. For ML375 this was confirmed in IP assays performed after reduction of receptor reserve by the alkylating agent, phenoxybenzamine, as it reduced the maximal ACh response. In contrast, ML380 enhanced only ACh potency after receptor alkylation, with no effect on maximal response, consistent with studies of the M1 mAChR with the prototypical PAM, BQZ12. Interaction studies between ML380 and ML375 also indicated that they most likely used an overlapping allosteric site. Our findings indicate that novel small-molecule modulators of the M5 mAChR display mixed mechanisms of action compared with previously characterized modulators of other mAChRs.
Structure-Activity Relationships of Pan-Gαq/11 Coupled Muscarinic Acetylcholine Receptor Positive Allosteric Modulators
ACS Chem Neurosci 2018 Jul 18;9(7):1818-1828.PMID:29683647DOI:10.1021/acschemneuro.8b00136.
Recent years have seen a large increase in the discovery of allosteric ligands targeting muscarinic acetylcholine receptors (mAChRs). One of the challenges in screening such compounds is to understand their mechanisms of action and define appropriate parameter estimates for affinity, cooperativity and efficacy. Herein we describe the mechanisms of action and structure-activity relationships for a series of "pan-Gq-coupled" muscarinic acetylcholine (ACh) receptor (mAChR) positive allosteric modulators (PAMs). Using a combination of radioligand binding, functional inositol phosphate accumulation assays, receptor alkylation and operational data analysis, we show that most compounds in the series derive their variable potency and selectivity from differential cooperativity at the M1, M3 and M5 mAChRs. None of the PAMs showed greater than 10-fold subtype selectivity for the agonist-free receptor, but VU6007705, VU6007678, and VU6008555 displayed markedly increased cooperativity compared to the parent molecule and M5 mAChR-preferring PAM, ML380 (αβ > 100), in the presence of ACh. Most of the activity of these PAMs derives from their ability to potentiate ACh binding affinity at mAChRs, though VU6007678 was notable for also potentiating ACh signaling efficacy and robust allosteric agonist activity. These data provide key insights for the future design of more potent and subtype-selective mAChR PAMs.
Discovery and Optimization of Potent and CNS Penetrant M5-Preferring Positive Allosteric Modulators Derived from a Novel, Chiral N-(Indanyl)piperidine Amide Scaffold
ACS Chem Neurosci 2018 Jul 18;9(7):1572-1581.PMID:29678111DOI:10.1021/acschemneuro.8b00126.
The pharmacology of the M5 muscarinic acetylcholine receptor (mAChR) is the least understood of the five mAChR subtypes due to a historic lack of selective small molecule tools. To address this shortcoming, we have continued the optimization effort around the prototypical M5 positive allosteric modulator (PAM) ML380 and have discovered and optimized a new series of M5 PAMs based on a chiral N-(indanyl)piperidine amide core with robust SAR, human and rat M5 PAM EC50 values <100 nM and rat brain/plasma Kp values of ∼0.40. Interestingly, unlike M1 and M4 PAMs with unprecedented mAChR subtype selectivity, this series of M5 PAMs displayed varying degrees of PAM activity at the other two natively Gq-coupled mAChRs, M1 and M3, yet were inactive at M2 and M4.