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Purity: ≥98%
BI 689648 is a novel, potent and highly selective aldosterone synthase (AS) inhibitor that can attenuate the production of aldosterone directly and has been proposed as an alternative to mineralocorticoid receptor antagonists for blocking the pathologic effects of excess aldosterone. It can inhibit CYP11B1 and CYP11B2 with IC50s of 310 and 2.1 nM, respectively. BI 689648 represents an important step forward toward developing ASIs with greater potential for clinical success in cardiometabolic diseases.
| ln Vitro |
BI 689648 has significant selectivity in vitro when compared to FAD and LCI699; its IC50 for CYP11B2 is 2.1 nM, and its selectivity factor is 149 higher than that of CYP11B1. Comparatively, FAD286 shows an IC50 against CYP11B2 that is comparable to that of BI 689648 (2.5 nM); but, due to its increased efficacy against CYP11B1 (94 nM), it has a comparatively small selectivity factor of 38, which is about 4-fold lower [1].
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| ln Vivo |
Following oral treatment to cynomolgus monkeys, peak plasma concentrations of BI 689648 (5 mg/kg) are approximately 500 nM. For BI 689648 (aldosterone EC50=2 nM), substantial increases in 11-DOC were only seen at plasma concentrations >2000 nM or aldosterone EC50 >1000-fold, whereas FAD286 demonstrated a ~100-fold window. BI 689648 has modest effects on 11-DC and only at very high plasma concentrations (~10 μM) [1].
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| References |
[1]. Weldon SM, et al. Selectivity of BI 689648, a Novel, Highly Selective Aldosterone Synthase Inhibitor: Comparison with FAD286 and LCI699 in Nonhuman Primates. J Pharmacol Exp Ther. 2016 Oct;359(1):142-50
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| Molecular Formula |
C16H18N4O2
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| Molecular Weight |
298.339723110199
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| CAS # |
1633009-87-6
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| SMILES |
O=C(N1CCCC2=CC(C3=CC(COC)=CN=C3)=CN=C12)N
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| InChi Key |
DJFDCVNQDFICKV-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C16H18N4O2/c1-22-10-11-5-13(8-18-7-11)14-6-12-3-2-4-20(16(17)21)15(12)19-9-14/h5-9H,2-4,10H2,1H3,(H2,17,21)
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| Chemical Name |
6-(5-(methoxymethyl)pyridin-3-yl)-3,4-dihydro-1,8-naphthyridine-1(2H)-carboxamide
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| Synonyms |
BI 689648; BI-689648; BI689648.
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
| Shipping Condition |
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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| Solubility (In Vitro) |
DMSO : ~30 mg/mL (~100.56 mM)
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| Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (8.38 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (8.38 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. View More
Solubility in Formulation 3: ≥ 2.5 mg/mL (8.38 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 3.3519 mL | 16.7594 mL | 33.5188 mL | |
| 5 mM | 0.6704 mL | 3.3519 mL | 6.7038 mL | |
| 10 mM | 0.3352 mL | 1.6759 mL | 3.3519 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
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