Structure of 67853-37-6
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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. : | 67853-37-6 |
Formula : | C7H6BrNO3 |
M.W : | 232.03 |
SMILES Code : | O=[N+](C1=C(Br)C(OC)=CC=C1)[O-] |
MDL No. : | MFCD07779272 |
Boiling Point : | No data available |
InChI Key : | KCFDURKFXBLIAY-UHFFFAOYSA-N |
Pubchem ID : | 17750299 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H332-H335 |
Precautionary Statements: | P261-P280-P305+P351+P338 |
Num. heavy atoms | 12 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.14 |
Num. rotatable bonds | 2 |
Num. H-bond acceptors | 3.0 |
Num. H-bond donors | 0.0 |
Molar Refractivity | 49.46 |
TPSA ? Topological Polar Surface Area: Calculated from |
55.05 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.82 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
1.55 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
2.37 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
2.18 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
0.35 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
1.65 |
Log S (ESOL):? ESOL: Topological method implemented from |
-2.49 |
Solubility | 0.746 mg/ml ; 0.00321 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-2.32 |
Solubility | 1.12 mg/ml ; 0.00483 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-2.77 |
Solubility | 0.399 mg/ml ; 0.00172 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 |
-6.61 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) |
2.1 |
* 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 hydrogenchloride; iron; In ethanol; for 1.5h;Reflux; | Step 1. Synthesis of 2-bromo-3-methoxyaniline (C23) Iron (1.94 g, 34 mmol) was added to a solution of 2-bromo-1-methoxy-3-nitrobenzene (2.50 g, 10.77 mmol) in ethanol (18 mL) and concentrated hydrochloric acid (1 mL), and the reaction was heated at reflux for 1.5 hours. The mixture was cooled to room temperature, filtered through Celite and concentrated in vacuo to afford the title compound as a solid. Yield: 2.57 g, 10.77 mmol, 100%. LCMS m/z 202.1 (M+1). 1H NMR (400 MHz, CD3OD) delta 3.77 (s, 3H), 6.30 (d, J=8.0 Hz, 1H), 6.43 (d, J=8.0 Hz, 1H), 6.98 (dd, J=8.0, 8.0 Hz, 1H). |
96% | With iron; ammonium chloride; In ethanol; water; for 1h;Heating / reflux; | Iron powder (1.08 mol) and ammonium chloride (862 mmol) were added to a solution of the bromide (216 mmol) in ethanol (200 mL) and water (140 mL) and the reaction mixture was heated at reflux for 1 h. The suspension was filtered and concentrated and the residue was extracted with ethyl acetate (3*200 mL). The combined organic layers were dried (sodium sulfate) and concentrated to give the bromoaniline in 96% yield as a yellow liquid. |
96% | With hydrogenchloride; iron; In ethanol; water; at 85℃; for 2h; | To a suspension of 2-bromo-1-methoxy-3-nitrobenzene (3.90 g, 16.81 mmol) and iron powder (2.82 g, 50.4 mmol) in EtOH (50 mL) was added concentrated HC1 (3.08 mL, 37.0 mmol). The mixture was heated at 85 C for 2.0 h. HPLC indicated a completion of the reaction. After cooled to room temperature, the solvent was removed under vacuum. The residue was suspended in EtOAc and saturated sodium bicarbonate.The insoluble material was removed by filtration through a pad of wet celite. The organic layer of the filtrate was collected, washed with brine, dried over sodium sulfate. After evaporation of solvent, Intermediate iSA (3.25 g, 16.09 mmol, 96 %yield) was obtained as brown oil. It was used for the next step without further purification. ?H NMR (500MHz, chloroform-d) 7.08 (t, J=8.1 Hz, 1H), 6.45 (dd, J8.0, 1.4 Hz, 1H), 6.34 (dd,J=8.3, 1.1 Hz, 1H), 3.89 (s, 2H); LC-MS: method A, RT = 1.21 mm, MS (ESI) m/z: 202.0 and 204.0 (M+H) |
95% | With iron; ammonium chloride; In tetrahydrofuran; methanol; water; for 1h;Reflux; | 2-bromo-1-methoxy-3-nitrobenzene (1 g, 4.31 mmol), Fe (1.68 g, 30.17 mmol) and NH4Cl (1.61 g, 30.17 mmol)were dissolved in THF (4 mL)/MeOH (4 mL)/H2O (2 mL) solution and stirred for 1 hour under reflux. After terminationof the reaction, the reaction solution was cooled to room temperature, diluted with saturated NaHCO3 solution andextracted with EtOAc. The extract solution was concentrated under reduced pressure and purified by column chromatography(eluent, EtOAc/Hex = 1/5) to obtain the title compound (0.83 g, 95 % yield).1H NMR (500 MHz, CDCl3) delta 7.05(dd, 1H), 6.42(d, 1H), 6.31(d, 1H), 3.86(s, 3H) |
91% | With acetic acid;iron; In ethanol; for 3.5h;Heating / reflux; | 2-Bromo-3-nitroanisole B3 (1.00 g; 4.31 MMOL) was dissolved in glacial acetic acid (11.0 mL) and ethanol (11.0 mL). To this solution was added iron powder (0.98 g; 17.5 MMOL). The mixture was stirred at reflux for 3.5 h and worked up. The reaction mixture was diluted with water (35 mL), neutralized with solid Na2CO3 and the product extracted with CH2CI2 (3X 50 mL). The extracts were dried (NA2SO4), filtered and CONCENTRATED IN VACUO to afford the crude product, 2-bromo-3 methoxyaniline B4 (91 %; 0. 79 g) as a pale yellow oil. MS 201.8 (MH) + ; Homogeneity by HPLC (TFA) 220 nm: 95%. |
91% | With iron; acetic acid; In ethanol; for 3.5h;Heating / reflux; | Step C:; 2-Bromo-3-nitroanisole 1b3 (1.00 g; 4.31 mmol) was dissolved in glacialacetic acid (11.0 mL)/ethanol (11.0 mL) and to the solution was added iron powder(0.98 g; 17.5 mmol). The mixture was stirred at reflux for 3.5 hr and worked up. Thereaction mixture was diluted with water (35 mL), neutralized with solid Na2CO3 and theproduct extracted with CH2CI2 (3X 50 mL). The extracts were dried (Na2SO4), filteredand concentrated in vacua to afford the crude product, 2-bromo-3 methoxyaniline 1b4(91%; 0.79 g) as a pale yellow oil. MS 201.8 (MH)+; Homogeneity by HPLC (TFA) (at)220nm: 95% |
91% | With iron; acetic acid; In ethanol; for 3.5h;Heating / reflux; | 2-Bromo-3-nitroanisole 1b3 (1.00 g; 4.31 mmol) was dissolved in glacial acetic acid (11.0 mL)/ethanol (11.0 mL) and to the solution was added iron powder (0.98 g; 17.5 mmol). The mixture was stirred at reflux for 3.5 hr and worked up. The reaction mixture was diluted with water (35 mL), neutralized with solid Na2CO3 and the product extracted with CH2Cl2(3*50 mL). The extracts were dried (Na2SO4), filtered and concentrated in vacuo to afford the crude product, 2-bromo-3 methoxyaniline 1b4 (91%; 0.79 g) as a pale yellow oil. MS 201.8 (MH)+; Homogeneity by HPLC (TFA)a220 nm: 95% |
91% | With iron; acetic acid; In ethanol; for 3.5h;Heating / reflux; | 2-Bromo-3-nitroanisole 2b3 (1.00 g; 4.31 mmol) was dissolved in glacialacetic acid (11.0 mL )/ethanol (11.0 mL) and to the solution was added iron powder(0.98 g; 17.5 mmol). The mixture was stirred at reflux for 3.5 hr and worked up. Thereaction mixture was diluted with water (35 mL), neutralized with solid Na2CO3 andthe product extracted with CH2CI2( 3X 50 mL). The extracts were dried (Na2SO4),filtered and concentrated in vacuo to afford the crude product, 2-bromo-3methoxyaniline 2b4 (91%; 0.79 g) as a pale yellow oil. MS 201.8 (MH)+;Homogeneity by HPLC (TFA) (at) 220nm: 95% |
91% | Step C; 2-Bromo-3-nitroanisole 2B3 (1.00 g; 4.31 mmol) was dissolved in glacial acetic acid (11.0 mL)/ethanol (11.0 mL) and to the solution was added iron powder (0.98 g; 17.5 mmol). The mixture was stirred at reflux for 3.5 h and worked up. The reaction mixture was diluted with water (35 mL), neutralized with solid Na2CO3 and the product extracted with CH2CI2 (3X 50 mL). The extracts were dried (Na2SO4), filtered and concentrated in vacuo to afford the crude product, 2-bromo-3 methoxyaniline 2B4 (91%; 0.79 g) as a pale yellow oil. MS 201.8 (MH)+; Homogeneity by HPLC (TFA) (at) 220nm: 95% | |
89% | With water; iron; ammonium chloride; In tetrahydrofuran; at 70℃; for 2.5h; | A solution of 2-bromo-l-methoxy-3 -nitrobenzene (500 mg, 2.16 mmol) in CH3OH (5 mL) and THF (5 mL) was added to a solution OfNH4Cl (572 mg, 10.7 mmol) in water (5 mL). Then, iron (325 mesh, 601 mg, 10.7 mmol) was added and the resulting mixture was heated to 70 C under nitrogen. After 2.5 h, the reaction mixture was cooled to room temperature, filtered over kieselguhr, diluted with AcOEt, and successively washed with a saturated solution OfNaHCO3 in water and brine. The organic layer was dried (Na2SO4) and evaporated. The residue was triturated in CH2Cl2, the filtered to give 390 mg (89 %) of the target product 37 as a beige solid. |
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