Structure of 105404-89-5
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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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CAS No. : | 105404-89-5 |
Formula : | C12H10Br2O2 |
M.W : | 346.02 |
SMILES Code : | COC1=CC2=CC(OC)=C(Br)C=C2C=C1Br |
MDL No. : | MFCD01851104 |
InChI Key : | IXKYNFRCDWZQOX-UHFFFAOYSA-N |
Pubchem ID : | 640259 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 16 |
Num. arom. heavy atoms | 10 |
Fraction Csp3 | 0.17 |
Num. rotatable bonds | 2 |
Num. H-bond acceptors | 2.0 |
Num. H-bond donors | 0.0 |
Molar Refractivity | 72.33 |
TPSA ? Topological Polar Surface Area: Calculated from |
18.46 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
3.19 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
4.5 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
4.38 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
3.78 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
4.29 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
4.03 |
Log S (ESOL):? ESOL: Topological method implemented from |
-5.15 |
Solubility | 0.00245 mg/ml ; 0.00000707 mol/l |
Class? Solubility class: Log S scale |
Moderately soluble |
Log S (Ali)? Ali: Topological method implemented from |
-4.61 |
Solubility | 0.00852 mg/ml ; 0.0000246 mol/l |
Class? Solubility class: Log S scale |
Moderately soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-6.0 |
Solubility | 0.000349 mg/ml ; 0.00000101 mol/l |
Class? Solubility class: Log S scale |
Moderately 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) |
Yes |
CYP2C9 inhibitor? Cytochrome P450 2C9 inhibitor: SVM model built on 5940 molecules (training set) |
Yes |
CYP2D6 inhibitor? Cytochrome P450 2D6 inhibitor: SVM model built on 3664 molecules (training set) |
Yes |
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 |
-5.22 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 |
0.0 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) |
1.7 |
* 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 |
---|---|---|
70% | With copper(l) iodide; In N,N-dimethyl-formamide; for 36h;Reflux; Inert atmosphere; | Sodium (0.21 g, 8.6 mmol) was added portionwise to anhydrous methanol (30 mL) stirred under an argon atmosphere. Upon complete dissolution, copper(I) iodide (1.65 g, 8.64 mmol), <strong>[105404-89-5]3,6-dibromo-2,7-dimethoxynaphthalene</strong> (7, 1.50 g, 4.32 mmol) and anhydrous DMF (5 mL), were added to the reaction mixture and brought to reflux for 24 h. Additional copper(I) iodide (0.83 g, 4.32 mmol) and satd sodium methoxide (20 mL) were added to regenerate the catalyst and stirred at reflux for an additional 12 h. The reaction was quenched by the addition of water (10 mL) and extracted with DCM (2*25 mL), washed successively with 10% HCl (2*10 mL), water (2*10 mL), dried (MgSO4) and concentrated in vacuo to afford a crude solid, which was recrystallized from ethanol to afford the title compound (0.75 g, 70%). Mp 255-256 C (lit. 23 mp>200 C). 1H NMR (300 MHz, CDCl3) delta 7.04 (s, 4H), 3.98 (s, 12H); 13C NMR (75 MHz, CDCl3) delta 148.1, 124.1, 55.8; IR (ATR) (cm-1) 3064, 3003, 2964, 2937, 2887, 1669, 1608, 1528, 1510. HRMS (EI+, 70 eV); m/z: [M]+ calcd for C14H16O4 248.1049, found 248.1048. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
83% | With potassium hydroxide; In dimethyl sulfoxide; at 20℃; for 3h;Cooling with ice; | 0.47 mol of 3,6-dibromonaphthalene-2,7-diol at room temperature, dissolve 800 ml of DMSO (dimethylsulfoxide) in 150 g. In ice bath KOH 3.77mol, 212g was slowly added and then 1.93mol, methyl iodide (methyl iodide) 275g was added carefully not to increase the internal temperature. After the addition was completed, the mixture was raised to room temperature and further stirred for 3 h. Then, 2.0 L of EtOH (ethanol) was added thereto, and 2.0 L of H 2 O was added sequentially, followed by stirring for 1 hour. Thereafter, the solid obtained by filtration was washed with 1 L of EtOH and dried in an oven. [Intermediate 1-1] 0.39 mol, 135.6 g (yield 83%) were obtained. |
83% | With potassium hydroxide; In dimethyl sulfoxide; at 20℃; for 3h;Cooling with ice; | 0.47 mol of 3,6-dibromonaphthalene-2,7-diol at room temperature,Dissolve 800 ml of DMSO (dimethylsulfoxide) in 150 g.3.77mol and 212g of KOH were slowly added to the ice bath, and 1.93mol and 275g of methyl iodide were added with caution not to increase the internal temperature rapidly.After the addition was completed, the mixture was raised to room temperature and further stirred for 3 h. Then, 2.0 L of EtOH (ethanol) was added thereto, and 2.0 L of H 2 O was sequentially added thereto, followed by stirring for 1 hour.Thereafter, the solid obtained by filtration was washed with 1 L of EtOH, and then dried in an oven to obtain 0.39 mol, 135.6 g (yield 83%) of the title compound [Intermediate 1-1]. |
77% | With potassium carbonate; In acetone; at 20℃; for 4h;Inert atmosphere; | A solution of 3,6-dibromo-2,7-dihydroxynaphthalene (7, 3.00 g, 9.43 mmol), potassium carbonate (3.91 g, 28.3 mmol) and methyl iodide (1.71 mL, 28.3 mmol) dissolved in anhydrous acetone (100 mL) were stirred at room temperature under argon for 4 h. The reaction mixture was filtered through a Celite pad to remove the inorganics, which was washed with DCM (100 mL). The combined organic filtrate and washings were washed with 10% HCl (2*50 mL), water (2*50 mL), dried (MgSO4) and concentrated in vacuo. The crude solid was recrystallized from ethanol to afford the title compound as fine white needles (2.50 g, 77%), mp 177-178 C (lit. 30 mp 176.5-178 C). 1H NMR (300 MHz, CDCl3) delta 7.88 (s, 2H), 7.05 (s, 2H), 3.98 (s, 6H); 13C NMR (75 MHz, CDCl3) delta 154.3, 133.9, 131.0, 125.3, 111.4, 105.7, 56.2; IR (ATR) (cm-1) 2994, 2940, 2869, 2858, 1618, 1588, 1491, 1464. HRMS (EI+, 70 eV); m/z: [M]+ calcd for C12H10Br2O2 343.9048, found 343.9059. Anal. Calcd for C12H10Br2O2: C, 41.65; H, 2.91; Br, 46.18. Found: C, 41.55; H, 2.85; Br, 46.05. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
73% | With copper(l) iodide; tetrakis(triphenylphosphine) palladium(0); triethylamine; In tetrahydrofuran; at 40℃;Inert atmosphere; | General procedure: To a solution of 2,7-dibromonaphthalene (1.00 g, 3.50 mmol), Pd(PPh3)4 (203 mg,0.176 mmol), and CuI (33.6 mg, 0.176 mmol) in dry THF (100 mL), ethynyltrimethylsilane (2.4 ml, 17 mmol) and triethylamine (2.4 ml, 17 mmol) were added, and the reaction mixture was stirred overnight at 40 C under Ar. The reaction mixture was then diluted with water (100 mL), and the product was extracted with ethyl acetate (300 mL × 3). The organic layer was dried over MgSO4 and concentrated in vacuo. The residue was purified by silica gel column chromatography [hexane/chloroform (10:1)] to give 2,7-bis((trimethylsilyl)ethynyl)naphthalene 7a (977 mg, 3.05 mmol, 87%) as a colorless solid |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
90% | With tetrakis(triphenylphosphine) palladium(0); caesium carbonate; In 1,4-dioxane; water;Inert atmosphere; Reflux; | General procedure: To a solution of 2,7-dibromonaphthalene (300 mg, 1.05 mmol) in1,4-dioxane (10 mL) were added 4-nitrophenylboronic acid (381 mg, 2.28 mmol), Pd(PPh3)4 (28 mg, 0.024 mmol), and aq. Cs2CO3 (2 M, 2 mL), and the reaction mixture was stirred overnight at reflux under Ar. Then, the reaction mixture was diluted with water (30 mL), and the product was extracted with chloroform (100 mL × 3). The organic layer was dried over MgSO4 and concentrated in vacuo. The residue was purified by column chromatography [hexane/chloroform (2:1)] to give 2,7-bis(4-nitrophenyl)naphthalene 3a (326 mg, 0.879 mmol, 84%) as a yellow solid |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
68% | With potassium hydroxide; In water; at 0.1 - 40℃; for 1h;Inert atmosphere; | To a complex mixture of 3 (7 g, 22 mmol) in 10% KOH (aq, 31 mL, 2.5 eq), Me2SO4 (4.2 mL, 44 mmol) was slowly dropped under Ar. The temp should be controlled not exceeding over 40 . The mixture was then heated for 1 h at about 100 . The reaction solution was then cooed down and extracted twice with ether (50 mL x 2). The organic phase washed with dil. KOH and H2O, dried over MgSO4, and evaporated. The residue was recrystallized from EtOH to give 4 (5.2 g, 68%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
96% | Dried TMEDA (15 mL, 100 mmol) was mixed with a solution of 4 (7 g, 20 mmol) in Et2O (110 mL) at -78 oC under argon atmosphere. A 2.5M soln. of n-BuLi in hexane (32 mL) was slowly added to the solution. The yellow-red solution was then kept for l h at -78 , and then DMF (18 mL, 100 mmol) was added slowly at -78 . After 12 h stirring at r.t. the reaction was quenched first by the addition of H2O and 2M HCl solution. The formed precipitate was filtered and washed with H2O. After drying, yellow solid 5 was obtained in 4.68 g (96%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
63% | To a mixture of 2,7-dibromo-3,6- dimethoxynaphthalene (6.9 g, 20 mmol) in dry THF (100 mL) under N2 at -65C was added n-BuLi (15 mL, 1.6M in hexane, 24 mmol ). The mixture was stirred for 0.5 hour at -65C, followed by addition of a solution of hexachloroethane (6.15 g, 26 mmol) in dry THF (15 mL). The resulting mixture was stirred for 0.5 hour at -60C then poured into saturated aqueous NH4CI (100 mL) and extracted with EtOAc. The combined organic layers were washed with brine, dried over anhydrous Na2SC>4, and concentrated under reduced pressure. The residue was purified by flash column chromatography to afford the desired product (3.8 g, 63% yield) as grey solid. |
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