Structure of 10342-66-2
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The BI-3802 was designed by Boehringer Ingelheim and could be obtained free of charge through the Boehringer Ingelheim open innovation portal opnMe.com, associated with its negative control.
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Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.
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Batch number can be found on the product's label following the word 'Batch'.
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CAS No. : | 10342-66-2 |
Formula : | C8H8BrNO2 |
M.W : | 230.06 |
SMILES Code : | O=[N+](C1=CC(Br)=CC=C1CC)[O-] |
MDL No. : | MFCD22490699 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302 |
Precautionary Statements: | P280-P305+P351+P338 |
Num. heavy atoms | 12 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.25 |
Num. rotatable bonds | 2 |
Num. H-bond acceptors | 2.0 |
Num. H-bond donors | 0.0 |
Molar Refractivity | 52.74 |
TPSA ? Topological Polar Surface Area: Calculated from |
45.82 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
2.03 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
3.24 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
2.92 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
3.08 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
1.12 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
2.48 |
Log S (ESOL):? ESOL: Topological method implemented from |
-3.55 |
Solubility | 0.0655 mg/ml ; 0.000285 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-3.88 |
Solubility | 0.0306 mg/ml ; 0.000133 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-3.43 |
Solubility | 0.0857 mg/ml ; 0.000372 mol/l |
Class? Solubility class: Log S scale |
Soluble |
GI absorption? Gatrointestinal absorption: according to the white of the BOILED-Egg |
High |
BBB permeant? BBB permeation: according to the yolk of the BOILED-Egg |
Yes |
P-gp substrate? P-glycoprotein substrate: SVM model built on 1033 molecules (training set) |
No |
CYP1A2 inhibitor? Cytochrome P450 1A2 inhibitor: SVM model built on 9145 molecules (training set) |
Yes |
CYP2C19 inhibitor? Cytochrome P450 2C19 inhibitor: SVM model built on 9272 molecules (training set) |
No |
CYP2C9 inhibitor? Cytochrome P450 2C9 inhibitor: SVM model built on 5940 molecules (training set) |
No |
CYP2D6 inhibitor? Cytochrome P450 2D6 inhibitor: SVM model built on 3664 molecules (training set) |
No |
CYP3A4 inhibitor? Cytochrome P450 3A4 inhibitor: SVM model built on 7518 molecules (training set) |
No |
Log Kp (skin permeation)? Skin permeation: QSPR model implemented from |
-5.4 cm/s |
Lipinski? Lipinski (Pfizer) filter: implemented from |
0.0 |
Ghose? Ghose filter: implemented from |
None |
Veber? Veber (GSK) filter: implemented from |
0.0 |
Egan? Egan (Pharmacia) filter: implemented from |
0.0 |
Muegge? Muegge (Bayer) filter: implemented from |
0.0 |
Bioavailability Score? Abbott Bioavailability Score: Probability of F > 10% in rat |
0.55 |
PAINS? Pan Assay Interference Structures: implemented from |
0.0 alert |
Brenk? Structural Alert: implemented from |
2.0 alert: heavy_metal |
Leadlikeness? Leadlikeness: implemented from |
No; 1 violation:MW<1.0 |
Synthetic accessibility? Synthetic accessibility score: from 1 (very easy) to 10 (very difficult) |
2.05 |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With water; tin(ll) chloride; In ethanol; at 70℃; for 2h; | To a solution of 2-ethyl-5-bromo nitrobenzene (9.71 g, 230 mmol) in ethanol (125 ml) is added tin(ll) chloride dihydrate (35.72 g, 225.71 mmol), followed by heating at 70 0C for 2 hours. After cooling to room temperature the solution is poured into crushed ice (1 litre) then diluted with ethyl acetate (200 ml). Solid sodium carbonate is cautiously added until pH 7 is achieved, at which stage the viscous mixture is filtered through diatomaceous earth (further washing with ethyl acetate/aqueous sodium carbonate) and the phases separated. After additional extraction of the aqueous phase, all organic phases are combined, dried over anhydrous magnesium sulfate then concentrated in vacuo. The crude oil is purified by flash column chromatography on silica gel (hexane / ethyl acetate 8:2 ratio) to afford 5-bromo-2- ethylaniline (7.89 g) as a brown oil. | |
With water; ammonium chloride; zinc; In methanol; for 1h;Reflux; | Step 3A solution of ammonium chloride (12.5 g, 0.2 mol) in water (30 ml) is added to a mixture of zinc dust (35. 7 g, 0.5 mol) and 4-bromo-1-ethyl-2-nitrobenzene (18 g, 0.07 mol) in methanol (720 ml) and water (180 ml). The reaction mixture is refluxed for one hour, then cooled to room temperature and filtered through a plug of diatomaceous earth. The filtrate is concentrated in vacuo, then diluted with water and extracted with ethyl acetate. The combined organic extracts are washed with water and brine, dried over anhydrous sodium sulfate, filtered and the filtrate concentrated in vacuo to yield 5-bromo-2-ethylaniline (14 g), used without further purification in the next step. | |
Step 1 : Preparation of 5-bromo-2-ethylanilineTo a solution of 2-ethyl-5-bromo nitrobenzene (9.71 g, 230 mmol) in ethanol (125 ml) is added tin(ll) chloride dihydrate (35.72 g, 225.71 mmol), followed by heating at 70 0C for 2 hours. After cooling to room temperature the solution is poured into crushed ice (1 litre) then diluted with ethyl acetate (200 ml). Solid sodium carbonate is cautiously added until pH 7 is achieved, at which stage the viscous mixture is filtered through diatomaceous earth (further washing with ethyl acetate/aqueous sodium carbonate) and the phases separated. After additional extraction of the aqueous phase, all organic phases are combined, dried over anhydrous magnesium sulfate then concentrated in vacuo. The crude oil is purified by flash column chromatography on silica gel (hexane / ethyl acetate 8:2 ratio) to afford 5-bromo-2-ethylaniline (7.89 g) as a brown oil. |
Example 2Preparation of 2-(4'-chloro-4-ethyl-2'-methylbiphen-3-yl)-4,4-dimethylcyclohexane-1,3-dioneStep 1: Preparation of 5-bromo-2-ethylanilineTo a solution of 2-ethyl-5-bromo nitrobenzene (9.71 g, 230 mmol) in ethanol (125 ml) is added tin(II) chloride dihydrate (35.72 g, 225.71 mmol), followed by heating at 70 C. for 2 hours. After cooling to room temperature the solution is poured into crushed ice (1 litre) then diluted with ethyl acetate (200 ml). Solid sodium carbonate is cautiously added until pH 7 is achieved, at which stage the viscous mixture is filtered through diatomaceous earth (further washing with ethyl acetate/aqueous sodium carbonate) and the phases separated. After additional extraction of the aqueous phase, all organic phases are combined, dried over anhydrous magnesium sulfate then concentrated in vacuo. The crude oil is purified by flash column chromatography on silica gel (hexane/ethyl acetate 8:2 ratio) to afford 5-bromo-2-ethylaniline (7.89 g) as a brown oil. | ||
With ammonium chloride; zinc; In methanol; water; for 1h;Heating / reflux; | A solution of ammonium chloride (12.5 g, 0.2 mol) in water (30 ml) is added to a mixture of zinc dust (35. 7 g, 0.5 mol) and 4-bromo-1-ethyl-2-nitrobenzene (18 g, 0.07 mol) in methanol (720 ml) and water (180 ml). The reaction mixture is refluxed for one hour, then cooled to room temperature and filtered through a plug of diatomaceous earth. The filtrate is concentrated in vacuo, then diluted with water and extracted with ethyl acetate. The combined organic extracts are washed with water and brine, dried over anhydrous sodium sulfate, filtered and the filtrate concentrated in vacuo to yield 5-bromo-2-ethylaniline (14 g), used without further purification in the next step. | |
With ammonium chloride; zinc; In methanol; water; for 1h;Heating / reflux; | Step 3 <n="170"/>A solution of ammonium chloride (12.5 g, 0.2 mol) in water (30 ml) is added to a mixture of zinc dust (35. 7 g, 0.5 mol) and 4-bromo-1-ethyl-2-nitrobenzene (18 g, 0.07 mol) in methanol (720 ml) and water (180 ml). The reaction mixture is refluxed for one hour, then cooled to room temperature and filtered through a plug of diatomaceous earth. The filtrate is concentrated in vacuo, then diluted with water and extracted with ethyl acetate. The combined organic extracts are washed with water and brine, dried over anhydrous sodium sulfate, filtered and the filtrate concentrated in vacuo to yield 5-bromo-2-ethylaniline (14 g), used without further purification in the next step. | |
Step 1 : Preparation of 5-bromo-2-ethylanilineTo a solution of 2-ethyl-5-bromo nitrobenzene (9.71 g, 230 mmol) in ethanol (125 ml) is added tin(ll) chloride dihydrate (35.72 g, 225.71 mmol), followed by heating at 70 0C for 2 hours. After cooling to room temperature the solution is poured into crushed ice (1 litre) then diluted with ethyl acetate (200 ml). Solid sodium carbonate is cautiously added until pH 7 is achieved, at which stage the viscous mixture is filtered through diatomaceous earth (further washing with ethyl acetate/aqueous sodium carbonate) and the phases separated. After additional extraction of the aqueous phase, all organic phases are combined, dried over anhydrous magnesium sulfate then concentrated in vacuo. The crude oil is purified by flash column chromatography on silica gel (hexane / ethyl acetate 8:2 ratio) to afford 5-bromo-2-ethylaniline (7.89 g) as a brown oil | ||
To a solution of 2-ethyl-5-bromo-1 -nitrobenzene (9.71 g, 230 mmol) in ethanol (125 ml) is added tin(ll) chloride dihydrate (35.72 g, 225.71 mmol), followed by heating at 70 0C for 2 hours. After cooling to room temperature the solution is poured into crushed ice (1 litre) then diluted with ethyl acetate (200 ml). Solid sodium carbonate is cautiously added until pH 7 is achieved, at which <n="39"/>stage the viscous mixture is filtered through diatomaceous earth (further washing with ethyl acetate/aqueous sodium carbonate) and the phases separated. After additional extraction of the aqueous phase, all organic phases are combined, dried over anhydrous magnesium sulfate then concentrated in vacuo. The crude oil is purified by flash column chromatography on silica gel (hexane / ethyl acetate 8:2 ratio) to afford 5-bromo-2-ethylaniline (7.89 g) as a brown oil. | ||
To a solution of 2-ethyl-5-bromo-1 -nitrobenzene (9.71 g, 230 mmol) in ethanol (125 ml) is added tin(ll) chloride dihydrate (35.72 g, 225.71 mmol), followed by heating at 70 0C for 2 hours. After cooling to room temperature the solution is poured into crushed ice (1 litre) then diluted with ethyl acetate (200 ml). Solid sodium carbonate is cautiously added until pH 7 is achieved, at which stage the viscous mixture is filtered through diatomaceous earth (further washing with ethyl acetate/aqueous sodium carbonate) and the phases separated. After additional extraction of the <n="39"/>aqueous phase, all organic phases are combined, dried over anhydrous magnesium sulfate then concentrated in vacuo. The crude oil is purified by flash column chromatography on silica gel (hexane / ethyl acetate 8:2 ratio) to afford 5-bromo-2-ethylaniline (7.89 g) as a brown oil. |