Structure of 1013-83-8
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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. : | 1013-83-8 |
Formula : | C11H7BrO2 |
M.W : | 251.08 |
SMILES Code : | O=C(O)C1=CC=C2C(Br)=CC=CC2=C1 |
MDL No. : | MFCD08236734 |
InChI Key : | QPOQPJDDJJNVRY-UHFFFAOYSA-N |
Pubchem ID : | 14960646 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 14 |
Num. arom. heavy atoms | 10 |
Fraction Csp3 | 0.0 |
Num. rotatable bonds | 1 |
Num. H-bond acceptors | 2.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 58.61 |
TPSA ? Topological Polar Surface Area: Calculated from |
37.3 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.96 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
3.39 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
3.3 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
3.32 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
3.0 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
3.0 |
Log S (ESOL):? ESOL: Topological method implemented from |
-3.99 |
Solubility | 0.0254 mg/ml ; 0.000101 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-3.85 |
Solubility | 0.0353 mg/ml ; 0.000141 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-4.3 |
Solubility | 0.0125 mg/ml ; 0.0000497 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) |
No |
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 |
-5.42 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 |
0.56 |
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<0.0 |
Synthetic accessibility? Synthetic accessibility score: from 1 (very easy) to 10 (very difficult) |
1.14 |
* 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 |
---|---|---|
97% | With sulfuric acid; for 2.0h;Cooling with ice; Reflux; | Disperse 5-bromo-2naphthoic acid (0.75 g, 3 mmol) in 10 mL of methanol and cool in an ice bath.Slowly add 1 mL of concentrated sulfuric acid to the reaction solution, and react at reflux for 2 h.20 mL of water was added and extracted with DCM. The organic phase was washed successively with a saturated sodium bicarbonate solution and a saturated saline solution.Dry over anhydrous sodium sulfate, filter, and concentrate the filtrate to obtain methyl 5-bromo-2naphthoate,Yield: 97%. |
69% | With thionyl chloride; at 25 - 30℃; for 3.25h;Heating / reflux; | Preparation of 5-Bromo-2-naphthalenecarboxylic acid, Methyl Ester. [0110] 5-Bromo-2-naphthoic acid (17.33 g, 69 mmol) and 250 mL of MeOH were combined in a flask under N2 atmosphere. Thionyl chloride (5.84 mL, 80 mmol) was added dropwise over 15 minutes at a temperature of 25-30 C., resulting in a pale yellow mixture. The mixture was heated at reflux for 3 ¼ hours. The resulting yellow solution was concentrated in vacuo to 137.4 g of solution then placed in a freezer overnight. The resulting thick mixture was filtered and the solid was washed with 100 mL of cold MeOH. The solid was dried in vacuo at 50 C. to give 11.39 g of the intermediate title compound as white crystals. A second crop was filtered and washed with 100 mL of cold MeOH. The solid was dried to 1.31 g of white crystals. Yield: 69%, 2 crops. |
With sulfuric acid; at 80℃; for 16.0h;Inert atmosphere; | Sulfuric acid (0.2 mL) was added to the solution of <strong>[1013-83-8]5-bromo-2-naphthoic acid</strong> (1.0 g, 3.98 mmol, 1.0 eq) in MeOH (10 mL) at room temperature and the solution was stirred under nitrogen atmosphere, at 80 C for 16 h. After complete consumption of starting material, the reaction mixture was evaporated under reduced pressure, diluted ethyl acetate and washed with saturated aqueous sodium bicarbonate. The aqueous extract was again extracted with ethyl acetate. The combined organic extract was washed with brine, dried over anhydrous Na2504, filtered and solvents evaporated from the filtrate under reduced pressure to afford methyl 5- bromo-2-naphthoate. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With thionyl chloride; In N,N-dimethyl-formamide; toluene; at 0 - 90℃; for 1.5h; | <strong>[1013-83-8]5-bromonaphthalene-2-carboxylic acid</strong> (120 g) in a mixture of DMF (200 mL) and toluene (800 mL) at 000 was treated with SOCI2 (167 g). The mixture was stirred at 90°C for 1 .5 h, then concentrated to afford curde 5-bromonaphthalene-2-carbonyl chloride(140 g) which was used in the next step without any further purification. | |
With thionyl chloride; N,N-dimethyl-formamide; at 60℃; for 3.0h; | DMF (3 drops) were added to a solution of <strong>[1013-83-8]5-bromo-2-naphthoic acid</strong> (1.0 equiv) in SOCl2 (4.0 mL) and the mixture was stirred for 3 h at 60° C. to complete the reaction. The reaction mixture was cooled to room temperature and dried by rotary evaporation. The crude product was dissolved in aq. NH4OH (30percent) (5.0 mL) and the mixture was stirred for overnight at room temperature. The mixture was diluted with DCM (20 mL) and washed twice with saturated NaHCO3 aqueous solution (15 mL). The organic layer was dried over anhydrous Na2SO4, concentrated by rotary evaporation, and purified by column chromatography to give amide intermediate. Amide intermediate was dissolved in SOCl2 (4.0 mL) and the mixture was refluxed for overnight. After cooling the solution was evaporated and dissolved in DCM, then it was washed with twice with saturated NaHCO3 aqueous solution (15 mL). The organic layer was dried over anhydrous Na2SO4, concentrated by rotary evaporation, and purified by column chromatography to give 5-bromo-2-naphthonitrile (26) (52) 1H NMR (400 MHz, Acetone-d6) delta 8.58 (d, J=1.6 Hz, 1H), 8.40 (d, J=8.8 Hz, 1H), 8.17 (d, J=8.3 Hz, 1H), 8.11 (dd, J=7.5, 1.0 Hz, 1H), 7.94 (dd, J=8.8, 1.7 Hz, 1H), 7.68-7.60 (m, 1H). LC-MS (ES) for C11H6BrN [M+1]+ 232.91. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
53.4% | With bromine; iodine; In acetic acid; for 0.5h;Heating / reflux; | To a boiling solution of 2-naphthoic acid (10.00 g, 58.14 mmol) in acetic acid (50 mL) is added dropwise bromine (3 mL) containing iodine (0.25 g). After the addition is complete, the solution is refluxed for 0.5 hr. A white precipitate forms during cooling and is isolated by filtration, washed with acetic acid and then water. The solid is triturated in methanol (100 mL) and 7.01 g (53.4percent yield) of the desired product is obtained as a white solid. m.p. 248-250° C. 1H NMR (300 MHz, CD3OD): delta 8.94 (d, J=1.8 Hz, 1H), 8.52-8.42 (m, 3H), 8.27 (dd, J=1.8, 7.5 Hz, 1H), 7.79 (t, J=8.4 Hz, 1H). |
46% | With bromine;iodine; In acetic acid; for 0.583333h;Heating / reflux; | Preparation 3 [0106] Preparation of 6-Iodo-1-methoxy-naphthalene. [CHEMMOL-00022] [0107] Preparation of 5-Bromo-2-naphthalenecarboxylic acid. [0108] 2-Naphthoic acid (50;0 g, 0.290 mol), glacial acetic acid (250 mL), bromine (15 mL, 0.291 mol) and iodine (1.3 g, 0.005 mol) were combined in a flask under N2 atmosphere. The mixture was heated at reflux for 35 minutes then cooled to room temperature. The thick yellow mixture was stirred at room temperature for 1 hour. The mixture was filtered and the pale orange solid was rinsed with 100 mL of the filtrate. The solid was dried in vacuo at 55° C. overnight to yield 55.5 g of pale orange solid. The solid was slurried in 275 mL of 1 N NaOH for 30 minutes. The solid was filtered off and rinsed 3 times with 50 mL portions of the filtrate. The solid was air dried in the hood over the weekend to yield 46.7 g of solid. The solid was added to 220 mL of water. Concentrated HCl (15 mL) was added to obtain pH of 1.3 and the mixture was stirred for 4 hours. The solid was filtered off and washed with 200 mL of water. The solid was dried in vacuo at 50° C. to give 37.6 g of intermediate title compound as white crystals (HPLC: 90percent with 9percent 2-naphthoic acid, 46percent yield). |
76 g (75%) | With I2; bromine; acetic acid; | A. 5-Bromo-2-Naphthoic Acid A 75 g (0.44 mole) portion of 2-naphthoic acid, 375 ml of acetic acid, 22.5 ml of Br2 (70 g, 0.44 mole) and 1.9 g (0.015 mole) of I2 were placed in a 1 l. 3-necked flask and refluxed with stirring for 0.6 hours. The reaction mixture was cooled to 25° and filtered. The cream solid was washed with small portions of the filtrate, air dried and dried to a constant weight at 60° to give 76 g (75percent) of a light tan-cream solid, m.p. 224°-233° dec. The crude product was slurried with 375 ml of 1 N NaOH for 0.5 hours and filtered. |
With bromine;iodine; In acetic acid; at 20 - 116℃; for 1.58333h;Heating / reflux; | 2-Naphthoic acid (50.0 g, 0.290 mol), glacial acetic acid (250 mL), bromine (15 mL, 0.291 mol) and iodine (1.3 g, 0.005 mol) were combined in a flask under N2 atmosphere. The mixture was heated at reflux for 35 minutes then cooled to room temperature. The thick yellow mixture was stirred at room temperature for 1 hour. The mixture was filtered and the pale orange solid was rinsed with ?100 mL of the filtrate. The solid was dried in vacuo at 55 C. overnight to yield 55.5 g of pale orange solid. The solid was slurried in 275 mL of 1 N NaOH for 30 minutes. The solid was filtered off and rinsed 3 times with 50 mL portions of the filtrate. The solid was air dried in the hood over the weekend to yield 46.7 g of solid. The solid was added to 220 mL of water. Concentrated HCl (15 mL) was added to obtain pH of 1.3 and the mixture was stirred for 4 hours. The solid was filtered off and washed with 200 mL of water. The solid was dried in vacuo at 50 C. to give 37.6 g of intermediate title compound as white crystals (HPLC: 90percent with 9percent 2-naphthoic acid, 46percent yield). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80% | With diethylzinc; tris-(o-tolyl)phosphine;palladium diacetate; In 1-methyl-pyrrolidin-2-one; hexane; at 60℃; for 19.0h; | A solution of Pd(OAc)2 (0.012 g, 0.054 mmol) and tri-o-tolylphosphine (0.073 g, 0.240 mmol) in degassed N-methylpyrrolidone (2 mL) is heated at 60° C. for 30 minutes. A solution of 1.0 M diethylzinc in hexane (0.11 mL, 0.11 mmol) is then added and stirring is continued for additional 30 minutes. To this mixture is added a mixture of <strong>[1013-83-8]5-bromo-naphthalene-2-carboxylic acid</strong>, 1, (0.135 g, 0.536 mmol) and Zn(CN)2 (0.063 g, 0.536 mmol) in degassed N-methylpyrrolidone (2 mL). The resulting mixture is heated at 60° C. for 18 hrs. The reaction mixture is cooled and directly loaded to a prep-HPLC column eluting with CH3CN-H2O (0.1percent TFA) to afford 0.085 g (80percent yield) of the desired product as a white solid. m.p. 250° C. (dec.). 1H NMR (300 MHz, CDCl3): delta 8.61 (s, 1H), 8.18 (m, 2H), 8.14 (d, J=8.7 Hz, 1H), 7.94 (d, J=7.2 Hz, 1H), 7.54 (t, J=8.4 Hz, 1H). 13C NMR (75 MHz, CDCl3): delta 168.4, 134.9, 134.8, 134.5, 132.4, 131.9, 129.9, 128.5, 125.9, 125.5, 117.5, 110.2. |