L-765314
Based on 2 publication(s) in Google Scholar
L-765314 is a potent and selective α1b adrenergic receptor antagonist with Kis of 5.4 nM and 2.0 nM for rat and human α1b adrenergic receptor, respectively.
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- Pureté: 99.92%
- CAS No.: 189349-50-6
- Formule: C27H34N6O5
- Masse moléculaire:522.60
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Stockage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
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Activité biologique
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Chemical Information
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Solvant et solubilité
- Protocole
- Pureté et documentation
- Références
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Publications Citing Use of MedChemExpress (MCE) L-765314
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Activité biologique
Ki: 5.4 nM (rat α1b receptor ), 2.0 nM (human α1b receptor), 50 (rat α1d receptor), 34 nM (human α1d receptor), 500 nM (rat α1a receptor ), 420 nM (human α1a receptor)[1].
L-765314 exhibits two displacement sites. The high-affinity site accounts for approximately 25% of binding (IC50) 1.90 nM and represents binding to the R1b sites. The low-affinity site accounts for the residual 75% of binding (IC50) 790 nM and represents binding to the R1a sites[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 189349-50-6
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Appearance Solid
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Masse moléculaire 522.60
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Formule C27H34N6O5
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Color White to off-white
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SMILES
O=C(N1[C@H](C(NC(C)(C)C)=O)CN(C2=NC(N)=C3C=C(OC)C(OC)=CC3=N2)CC1)OCC4=CC=CC=C4
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Livraison
Room temperature in continental US; may vary elsewhere.
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Stockage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year
Publications (2)
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Journal Impact Factor
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Most Recent
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Neuropharmacology
Social defeat stress enhances the rewarding effects of cocaine through α1A adrenoceptors in the medial prefrontal cortex of mice. [Abstract]2024 Jan 1:242:109757. PMID: 37839511 -
Solvant et solubilité
DMSO : 50 mg/mL (95.68 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.5 mg/mL (4.78 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (4.78 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Protocole
Rats[1]
The potency of terazosin and L-765314 for inhibiting the pressor responses to phenylephrine and A-61603 is evaluated in anesthetized male Sprague-Dawley rats (n=4). The rats are dosed i.v with either vehicle or ascending doses of test compounds, and the peak changes in mean arterial pressure are measured. The dose of antagonist eliciting a 25 mmHg decrease in mean arterial pressure (AD25) is calculated as an index of hypotensive potency. The rats are dosed i.v with L-765314 at 3 mg/kg , and the plasma is assayed by LCMS for parent compound[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Pureté et documentation
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Fiche technique (276 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Instruction de manipulation (2659 KB)
Références
[1]. Patane MA, et al. 4-Amino-2-[4-[1-(benzyloxycarbonyl)-2(S)- [[(1,1-dimethylethyl)amino]carbonyl]-piperazinyl]-6, 7-dimethoxyquinazoline (L-765,314): a potent and selective alpha1b adrenergic receptor antagonist. J Med Chem. 1998 Apr 9;41(8):1205-8. [Content Brief]
[2]. Tobias Böhmer, et al. The α1B-adrenoceptor subtype mediates adrenergic vasoconstriction in mouse retinal arterioles with damaged endothelium. Br J Pharmacol. 2014 Aug; 171(16): 3858–3867. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 1.9135 mL | 9.5675 mL | 19.1351 mL | 47.8377 mL |
| 5 mM | 0.3827 mL | 1.9135 mL | 3.8270 mL | 9.5675 mL | |
| 10 mM | 0.1914 mL | 0.9568 mL | 1.9135 mL | 4.7838 mL | |
| 15 mM | 0.1276 mL | 0.6378 mL | 1.2757 mL | 3.1892 mL | |
| 20 mM | 0.0957 mL | 0.4784 mL | 0.9568 mL | 2.3919 mL | |
| 25 mM | 0.0765 mL | 0.3827 mL | 0.7654 mL | 1.9135 mL | |
| 30 mM | 0.0638 mL | 0.3189 mL | 0.6378 mL | 1.5946 mL | |
| 40 mM | 0.0478 mL | 0.2392 mL | 0.4784 mL | 1.1959 mL | |
| 50 mM | 0.0383 mL | 0.1914 mL | 0.3827 mL | 0.9568 mL | |
| 60 mM | 0.0319 mL | 0.1595 mL | 0.3189 mL | 0.7973 mL | |
| 80 mM | 0.0239 mL | 0.1196 mL | 0.2392 mL | 0.5980 mL |
L-765314 Related Classifications
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