SR-3677

Alias: SR-3677; SR3677; SR 3677
Cat No.:V2951 Purity: ≥98%
SR-3677 (SR3677) is a potent and selective Rho-kinase/ROCK2 inhibitor with anticancer activity.
SR-3677 Chemical Structure CAS No.: 1072959-67-1
Product category: ROCK
This product is for research use only, not for human use. We do not sell to patients.
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

SR-3677 (SR3677) is a potent and selective Rho-kinase/ROCK2 inhibitor with anticancer activity. In enzyme-based assays for ROCK-II and ROCK-I, it inhibits ROCK with IC50 values of 3 and 56 nM, respectively. With respect to 353 kinases, SR-3677's off-target hit rate was 1.4%, and it only inhibited three of the seventy nonkinase enzymes and receptors. Pharmacological investigations demonstrated the effectiveness of SR-3677 in both cases, enhancing the outflow of aqueous humor in vivo in the eyes of pigs and preventing the phosphorylation of the myosin light chain.

Biological Activity I Assay Protocols (From Reference)
Targets
ROCK-II (IC50 = 3 nM); ROCK-I (IC50 = 56 nM)
ln Vitro

SR-3677 has an off-target hit rate of 1.4% against 353 kinases, an IC50 of approximately 3 nM in enzyme and cell-based assays, and only 3 out of 70 nonkinase enzymes and receptors that it inhibits. For ROCK-I, SR-3677's IC50 value is 56±12 nM. The primary cause of SR-3677's high potency is the hydrophobic interaction between the benzodioxane phenyl ring and the hydrophobic pocket surface.

ln Vivo
SR-3677 is effective in both, as demonstrated by pharmacology studies, which also show that it inhibits myosin light chain phosphorylation and increases ex vivo aqueous humor outflow in in pig eyes. The outflow facility is increased by 60% at one hour of perfusion with continuous exposure to 25 µM SR-3677, and by 70–80% at two to five hours.
Enzyme Assay
The STK2 kinase system from Cisbio is used for assays. The wells are filled with a 5 μL mixture of ATP (ROCK-I: 4 μM; ROCK-II: 20 μM) and a 1 μM STK2 substrate in STK-buffer. Test compounds (SR-3677) are dispensed in 20 nL. To initiate the reaction, add 5 μL of either 0.5 nM ROCK-II or 2.5 nM ROCK-I in STK-buffer. Addition of 10 μL of 1x antibody and 62.5 nM Sa-XL in detection buffer stops the reaction after 4 hours at room temperature[1].
Animal Protocol
NA
ExVivo
References

[1]. Discovery of substituted 4-(pyrazol-4-yl)-phenylbenzodioxane-2-carboxamides as potent and highly selective Rho kinase (ROCK-II) inhibitors. J Med Chem. 2008 Nov 13;51(21):6642-5.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C22H24N4O4
Molecular Weight
408.45
Exact Mass
408.18
Elemental Analysis
C, 64.69; H, 5.92; N, 13.72; O, 15.67
CAS #
1072959-67-1
Related CAS #
1072959-67-1
Appearance
solid
SMILES
CN(C)CCOC1=C(C=CC(=C1)C2=CNN=C2)NC(=O)C3COC4=CC=CC=C4O3
InChi Key
OQWZIAVXCYIZNN-UHFFFAOYSA-N
InChi Code
InChI=1S/C22H24N4O4/c1-26(2)9-10-28-20-11-15(16-12-23-24-13-16)7-8-17(20)25-22(27)21-14-29-18-5-3-4-6-19(18)30-21/h3-8,11-13,21H,9-10,14H2,1-2H3,(H,23,24)(H,25,27)
Chemical Name
N-[2-[2-(dimethylamino)ethoxy]-4-(1H-pyrazol-4-yl)phenyl]-2,3-dihydro-1,4-benzodioxine-3-carboxamide
Synonyms
SR-3677; SR3677; SR 3677
HS Tariff Code
2934.99.03.00
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)
Solubility Data
Solubility (In Vitro)
DMSO: ≥ 43 mg/mL
Water: <1 mg/mL
Ethanol: N/A
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (6.12 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 (6.12 mM) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), suspension solution; with ultrasonication.
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.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (6.12 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (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 corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.4483 mL 12.2414 mL 24.4828 mL
5 mM 0.4897 mL 2.4483 mL 4.8966 mL
10 mM 0.2448 mL 1.2241 mL 2.4483 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.

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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
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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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