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Structure of 108499-32-7
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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. : | 108499-32-7 |
Formula : | C7H7BrO2S |
M.W : | 235.10 |
SMILES Code : | O=C(C1=CC=C(CBr)S1)OC |
MDL No. : | MFCD09834150 |
InChI Key : | GFOPHLFSDVVYGB-UHFFFAOYSA-N |
Pubchem ID : | 11424851 |
GHS Pictogram: |
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Signal Word: | Danger |
Hazard Statements: | H302-H314 |
Precautionary Statements: | P264-P270-P271-P280-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P363-P403+P233-P501 |
Class: | 8 |
UN#: | 3265 |
Packing Group: | Ⅱ |
Num. heavy atoms | 11 |
Num. arom. heavy atoms | 5 |
Fraction Csp3 | 0.29 |
Num. rotatable bonds | 3 |
Num. H-bond acceptors | 2.0 |
Num. H-bond donors | 0.0 |
Molar Refractivity | 48.43 |
TPSA ? Topological Polar Surface Area: Calculated from |
54.54 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
2.37 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
2.38 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
2.28 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
1.75 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
3.36 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
2.43 |
Log S (ESOL):? ESOL: Topological method implemented from |
-2.94 |
Solubility | 0.273 mg/ml ; 0.00116 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-3.17 |
Solubility | 0.16 mg/ml ; 0.000682 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-3.01 |
Solubility | 0.231 mg/ml ; 0.000984 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 |
-6.04 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 |
1.0 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) |
2.7 |
* 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 |
---|---|---|
100% | With N-Bromosuccinimide; dibenzoyl peroxide; In chloroform; for 7h;Reflux; | Add freshly recrystallised NBS (323.8 g, 1.81 mol) to a solution of methyl-5- methylthiophene-2-carboxylate (258 g, 1.65 mol) in chloroform (2.6 L) at room temperature, and stir. Add benzoyl peroxide (3.99 g, 0.016 mol) and heat the reaction mixture to reflux for 7 hours. Cool the reaction mixture to ambient temperature and filter through diatomaceous earth. Wash the filter cake with chloroform (250 ml). Collect the organic layers and remove the solvent to give the title compound (388 g, 100%), which is used without further purification. ESI (m/z) 236(M+H). |
90% | With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile); In tetrachloromethane; at 80℃; for 2h; | A mixture of compound 26.1, NBS (6.26 g, 35.2 mmol) and AIBN (0.03 g, 0.18 mmol) in CCl4 (20 mL) was heated to 8O0C for 2 hours, then cooled to room temperature, filtered, washed with cold CH2Cl2 / CCl4 (1 :1). The filtrate was concentrated to provide compound 26.2 as major product (90%) and was used in the next step without purification. |
85% | With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile); In tetrachloromethane; at 80℃; for 2h; | To a stirred solution of compound 20 (2.50 g, 17.58 mmol) in MeOH (30.00 mL) cooled to 0 C, SOCl2 (5.11 mL, 7.32 mmol) was added and the reaction was stirred at 25 C for 12 h. A 2 N solution of NaOH was added and volatiles were removed under reduced pressure. The aqueous phase was extracted with DCM (3 x 25.00 mL) and the combined organic layers were dried over Na2SO4, filtered and evaporated. Methyl 5-methylthiophene-2-carboxylate was obtained in quantitative yield without any further purification. ESI-MS m/z 179 [M+Na]+; 1H NMR (300 MHz, CDCl3) delta 2.51 (s, 3H), 3.84 (s, 3H), 6.75 (d, J =3.1 Hz, 1H), 7.60 (d, J = 3.1 Hz, 1H). To a solution of the previously synthesized ester (3.00 g, 16.85 mmol) in CCl4 (15.00 mL), N-bromosuccinimide (2.70 g, 15.17 mmol)and azobisisobutyronitrile (catalytic amount) were added, and the reaction was stirred at 80 C for 2 h. The reaction was cooled to 25 C and filtered on asmall plug of Celite. Volatiles were removed under reduced pressure and the crude was purified by means of chromatography on silica gel (5 % diethyl ether in petroleum ether) to afford title compound (85 % yield) as a transparent oil. ESI-MS m/z 233-235 [M+H]+; 1H NMR (300 MHz, CDCl3) delta 3.87 (s, 3H), 4.66 (s, 2H), 7.08 (d, J = 3.8Hz, 1H), 7.62 (d, J = 3.8 Hz, 1H). |
82% | With N-Bromosuccinimide; dibenzoyl peroxide; In tetrachloromethane; for 12h;Reflux; | The methyl ester 13, (2.4 g, 15.5 mmol) was refluxed in CC1< in the presence of NBS (3 g, 17 mmol) and benzoyl peroxide (121 mg, 0.03 equiv) for 12 h. The reaction was cooled to 0 C and filtered. Organics was filtered, dried over Na2S04 and evaporated in vacuo. Crude material was purified on silica gel column (EtOAc: Hexanes = 1:5) to give the titled compound 14. (2.9 g, 82%). XH NMR (CHCI3, 400 MHz): delta 7.64 (d, J=3.6, 1H) , 7.10 (m, 1H) , 3.90 (s, 3H) , 3.89 (s, 3H) ; 13C NMR (CHCI3, 100 MHz): 5 162.4, 149.8, 135.5, 130.2, 124.8, 52.4, 23.4; [M+H]+ = 235.1 (APCI+) . |
With N-Bromosuccinimide; dibenzoyl peroxide; In chloroform; at 60℃; for 3h;Heating / reflux; | N-Bromosuccinimide (Aldrich; 1.70 g, 9.6 mmol) and a catalytic amount of benzoyl peroxide were added to a solution of 5-methyl-thiophene-2-carboxylic acid methyl ester (1.40 g, 9.0 mmol) in chloroform (15 mL). The rection mixture was stirred under argon at reflux (60 C.) for 3 h, then filtered through Celite and evaporated under reduced pressure to give 5-bromomethyl-thiophene-2-carboxylic acid methyl ester (2 g) as a yellow oil which was used directly in the next step without further purification |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium azide; In acetonitrile; at 60℃; for 4h; | A mixture of compound 26.2 (41 g, 176 mmol) and sodium azide (22.9 g, 352 mmol) in acetonitrile (150 mL) was stirred at 600C for 4 hours. The reaction mixture was cooled and filtered. Removal of the solvent under reduced pressure provided compound 26.3, which was used without additional purification. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
95% | With 1H-imidazole; bromine; triphenylphosphine; In dichloromethane; at 20℃; for 0.166667h; | Bromine (0.47 mL, 9.12 mmol) was added to a solution of imidazole (617 mg, 9.06 mmol) and triphenylphosphine (2.40 g, 9.15 mmol) in CH2Cl2 (30 mL) at room temperature. A solution of methyl 5-hydroxymethyl-thiophene-2-carboxylate (prepared according to the procedures described in WO2004/037808; 1.30 g, 7.59 mmol) in CH2Cl2 (10 mL) was then added. After 10 min at room temperature, the reaction mixture was concentrated in vacuo. Purification of the crude residue by flash column chromatography on 80 g of silica gel (hexane?EtOAc, gradient) afforded 1.70 g (95%) of the title compound (B). |
95% | With 1H-imidazole; bromine; triphenylphosphine; In dichloromethane; at 20℃; for 0.166667h; | Preparation 1; Methyl 5-bromomethyl-thiophene-2-carboxylate (B); Bromine (0.47 mL, 9.12 mmol) was added to a solution of imidazole (617 mg, 9.06 mmol) and triphenylphosphine (2.40 g, 9.15 mmol) in CH2Cl2 (30 mL) at room temperature. A solution of methyl 5-hydroxymethyl-thiophene-2-carboxylate (prepared according to the procedures described in WO2004/037808; 1.30 g, 7.59 mmol) in CH2Cl2 (10 mL) was then added. After 10 min at room temperature, the reaction mixture was concentrated in vacuo. Purification of the crude residue by flash column chromatography on 80 g of silica gel (hexane ?EtOAc, gradient) afforded 1.70 g (95%) of the title compound (B). |
84% | With 1H-imidazole; bromine; triphenylphosphine; In dichloromethane; at 20℃; for 4h; | To a flask charged with dry dichloromethane (50 mL) was added in order triphenyl phosphine (228 mg, 0.87 mmol), imidazole (59.3 mg, 0.87 mmol) and bromine (44.6muL, 0.87 mmol). The reaction mixture was then treated with a solution of 1 (100 mg, 0.58 mmol, in <n="38"/>dichloromethane (5 niL)), dropwise and stirred at room temperature under nitrogen for 4 h. When the reaction was deemed complete the mixture was concentrated to dryness under reduced pressure and subjected to flash chromatography (20%ethyl acetate/petrol) to afford the desired 5-bromomethyl-thiophene-2-carboxylic acid methyl ester (m) as colourless crystals, (115 mg, 84%).1H NMR (300 MHz, CDCl3) delta 3.89 (3H, s, CH3), 4.67 (2H, s, CH2), 7.10 (IH, m, thienylH), 7.64 (IH, d, /=3.6Hz, thienylH).HPLCmethod2 92%/1.14 min. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
39% | Sodium hydride (60% oil dispersion, 26 mg, 0.65 mmol) was added to a solution of alcohol 2 (180 mg, 0.44 mmol) in DMF (1.1 mL) at 0 C. After 5 min, the reaction was allowed to warm to room temperature. After 30 min at room temperature, the mixture was cooled to a -40 C. and a solution of bromide B (Preparation 1, 125 mg, 0.53 mmol) in DMF (1.1 mL) was added via cannula. After 3 h at -40 C., the reaction was quenched with 1 N HCl (10 mL) and extracted with EtOAc (3×30 mL). The combined extracts were washed with H2O (2×15 mL) and brine (20 mL), then dried (Na2SO4), filtered and concentrated in vacuo. Purification of the crude residue by flash column chromatography on 12 g of silica gel (hexane?EtOAc, gradient) afforded 97 mg (39%) of desired product 3. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
5-Bromomethyl-2-carbomethoxythiophene (III-3). This compound was prepared from 5-methylthiophene-2-carboxylic acid by the method of Gogte et al, Tetrahedron, 23, 2443-51 (1967). | ||
Synthesis Example 14-1: Synthesis of 2-bromomethyl-5-methoxy carbonylthiophene (Compound IV-4) 2.05 g of commercially available 5-methylthiophene carboxylic acid was dissolved in 60 ml of methanol, and then a hydrochloric acid gas was brown into the solution for 5 minutes. After 23 hours, the reaction solution was concentrated, and then a 1 mol/l sodium hydroxide aqueous solution was added thereto, followedbyextractionwithchloroform. An organic layer was washed with a saturated salt solution and was then dried with anhydrous sodium sulfate and concentrated. 500 mg of the resulting residue was dissolved in 10 ml of carbon tetrachloride, followed by the addition of 570 mg of N-bromosuccinimide and 53 mg of azobisisobutyronitrile. After the resultant solution was stirred in oil bath for 20 hours at 70C, the reaction solution was filtrated, and then the filtrate thereof was then concentrated. The resulting residue was purified by means of silica gel column chromatography (15 g, hexane/ethyl acetate = 8/1). Consequently, 516.1 mg of the above-mentioned compound was obtained as light-yellow syrup. MS(EI,Pos.):m/z=233,235[M+1]+ 1H-NMR(500MHz,CDCl3):delta=3.89(3H,s),4.68(2H,s),7.10(1H,d,J=3.7Hz),7.64(1H,d,J=3.7Hz). | ||
With N-Bromosuccinimide; dibenzoyl peroxide; In methanol; tetrachloromethane; methyl 5-methylthiophene-2-carboxylate; | (ii) 5-bromomethyl-2-carbomethoxythiophene A solution of 5-methyl-2-thiophene carboxylic acid (25 g, 0.176 mol) in 500 ml of methanol was saturated with gaseous hydrochloric acid at 0 C. The reaction mixture was stirred at room temperature for 18 hours and then refluxed for 48 hours. The solvent was removed in vacuo and the crude methyl 5-methyl-2-thiophene carboxylate was used without further purification. The methyl ester prepared above (11.07 g, 0.071 mol) was dissolved in 200 ml of carbon tetrachloride under argon. N-bromosuccinimide (13.25 g, 0.074 mol) and dibenzoyl peroxide were then added. The reaction mixture was refluxed for 2 hours and allowed to stand at room temperature for 18 hours. The solids were collected and the filtrate was concentrated in vacuo to give 19 g of 5-bromomethyl-2-carbomethoxythiophene. |