Structure of 885277-48-5
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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. : | 885277-48-5 |
Formula : | C8H8BrNO2 |
M.W : | 230.06 |
SMILES Code : | O=C(OC)C1=C(Br)N=C(C)C=C1 |
MDL No. : | MFCD08059327 |
InChI Key : | UWRNYQBIUUVTGB-UHFFFAOYSA-N |
Pubchem ID : | 11241687 |
GHS Pictogram: |
![]() |
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 | 3.0 |
Num. H-bond donors | 0.0 |
Molar Refractivity | 48.18 |
TPSA ? Topological Polar Surface Area: Calculated from |
39.19 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
2.23 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
2.13 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
1.94 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
1.4 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
2.33 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
2.0 |
Log S (ESOL):? ESOL: Topological method implemented from |
-2.85 |
Solubility | 0.328 mg/ml ; 0.00142 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-2.58 |
Solubility | 0.599 mg/ml ; 0.0026 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-3.35 |
Solubility | 0.103 mg/ml ; 0.000449 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 |
-6.19 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) |
1.91 |
* 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 |
---|---|---|
79% | Phosphorus oxybromide (21.53 g, 75 mmol) was added to the stirred solution of 2-hydroxy-6- methylnicotinic acid (5 g, 32.7 mmol), pyridine (0.475 mL, 5.88 mmol) in chlorobenzene (100 mL) at room temperature under nitrogen. The reaction mixture was refluxed for 1 h and concentrated under vacuum before treating with an excess of cold methanol. The solution was stirred for an additional 1 h and again concentrated under vacuum. The residue was dissolved in water and pH was adjusted to ~8.0 by adding K2CO3 before extraction of the product with CH2CI2. The organic layer was washed with water and brine solution, dried over anhydrous Na2S04. Filtrate was evaporated completely under reduced pressure to give crude residue. The resulted crude compound was purified by flash column chromatography (100-200 silica mesh, eluent was 30% EtOAc in pet ether) to obtained methyl 2-bromo-6-methylnicotinate (6.1 g, 79% yield) as colorless oil. 1H NMR (400 MHz, CDCI3): d 8.00 (d, /= 7.6 Hz, 1H), 7.18 (d, J = 8.0 Hz, 1H), 3.94 (s, 3H), 2.59 (s, 3H); LCMS (ES) m/z 230.0 (M+H)+ |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
43% | Na2C03 (8.43 g, 80 mmol) was added to a solution of <strong>[885277-48-5]methyl <strong>[885277-48-5]2-bromo-6-methylnicotinate</strong></strong> (6.1 g, 26.5 mmol) and methyl acrylate (6.08 mL, 67.1 mmol) in mixture of DMA (16.99 mL, 181 mmol) and toluene (55 mL) at room temperature. Then the reaction mixture was degassed for 15 min. Tri-r olyl phosphine (0.807 g, 2.65 mmol) and allylpalladium chloride dimer (0.4850 g, 1.326 mmol) were added and the reaction mixture was stirred at 115 C in sealed tube for 5 h. Filtered through pad of Celite, and the filtrate was concentrated under reduced pressure. The resultant crude compound was purified by flash column chromatography on 100-200 mesh silica gel using 20% EtO Ac/pet-ether as an eluent to obtained (///-methyl 2-(3-methoxy-3-oxoprop-l- en-l-yl)-6-methylnicotinate (3.30 g, 43.0% yield) as a colorless oil. 1H NMR (400 MHz, CDCE): d 8.53 (dd, /= 1.2, 15.2 Hz, 1H), 8.22 (d, /= 6.8 Hz, 1H), 7.20-7.11 (m, 2H), 3.94 (s, 3H), 3.82 (s, 3H), 2.60 (s, 3H). LCMS (ES) m/z 236.09 (M+H)+ |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
tetrakis(triphenylphosphine) palladium(0); In 1,4-dioxane; at 20 - 95℃;Inert atmosphere; | To a solution of <strong>[885277-48-5]methyl 2-bromo-6-methyl-3-pyridinecarboxylate</strong> D60 (1.15 g) and Pd(Ph3P)4 (0.2 g, 0.173 mmol) in 1,4-Dioxane (10 ml) stirred under nitrogen at room temperature tributyl(ethenyl)stannane (1.74 g, 5.50 mmol) was added neat in one charge. The reaction mixture was stirred at microwave Personal Chemistry at 95 C. for 30 minutes. The solvent was removed to give the crude title compound. Under similar conditions another batch of D60 (100 mg) was processed to give the crude title compound. The two crudes were joined and purified by flash chromatography on silica (80 g column, gradient elution from Cy to Cy/EtOAc 4:6) to afford the title compound D61 (1.0 g). UPLC (Basic GEN_C): rt=0.73 minutes, peak observed: 178 (M+1). C10H11NO2 requires 177. 1H NMR (400 MHz, CDCl3) delta ppm 8.08 (d, 1H), 7.66 (dd, 1H), 7.12 (d, 1H), 6.52 (d, 1H), 5.59 (dd, 1H), 3.93 (s, 3H), 2.63 (s, 3H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With trimethylsilyl bromide; at 160℃; for 0.333333h;Inert atmosphere; | To a stirred solution of methyl 2-chloro-6-methyl-3-pyridinecarboxylate D59 (500 mg) in propionitrile (2 ml) under nitrogen at room temperature bromotrimethylsilane (0.699 ml, 5.39 mmol) was added dropwise neat. The reaction mixture was heated at Microwave Personal Chemistry 20 min at 160 C. The solvent was removed to give the crude. Under similar conditions another batch of D59 (500 mg) was processed to give the crude title compound. The two crudes were joined and purified together by flash chromatography on silica gel (80 g column, Cy 100% to Cy/EtOAc 4:6) to give the title compound D60 (1.2 g). 1H NMR (400 MHz, CDCl3) delta ppm 8.02 (d, 1H), 7.20 (d, 1H), 3.96 (s, 3H), 2.62 (s, 3H) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
20.90% | With bis-triphenylphosphine-palladium(II) chloride; N-ethyl-N,N-diisopropylamine; In acetonitrile; at 70 - 85℃; for 14h;Inert atmosphere; | To a stirred solution of <strong>[885277-48-5]methyl <strong>[885277-48-5]2-bromo-6-methylnicotinate</strong></strong> (US2010144760, 2.79 g, 12.1 1 mmol) in acetonitrile (50 ml) (degassed by N2 purge separately) was added bis(triphenylphosphine)palladium(II) chloride (1.063 g, 1.514 mmol). The reaction mixture was heated up to 70 C and diisopropyl ethyl amine (7.83 g, 60.6 mmol) was added slowly, followed by a solution of (R)-4-(4-(3-ethynylcyclopent-2- en- l-yl)piperazin- l-yl)benzonitrile (Compound lj, 2.8 g, 10.10 mmol) in acetonitrile (20 ml) was added slowly at the same temperature. The reaction mixture was heated and stirred at 80-85 C for 14 hrs. The progress of the reaction was monitored by TLC. The reaction mixture was distilled under vaccum to dryness to obtain a crude product which was purified by column chromatography over silica gel (100-200 mesh) using 60-80% ethyl acetate in hexane as an eluent to obtain the title product (0.9 gm, 20.90 % yield). iH NMR (400 MHz, CDC13) delta 8.17 (d, J = 8.1 Hz, 1H), 7.52 (d, J = 8.5 Hz, 2H), 7.20 (d, J = 8.2 Hz, 1H), 6.90 - 6.87 (m, 2H), 6.36 (d, J = 2.3 Hz, 1H), 4.08 - 4.03 (m, 1H), 3.96 (s, 3H), 3.40 - 3.35 (m, 4H), 2.75 - 2.67 (m, 6H), 2.64 (s, 3H), 2.13 - 2.09 (m, 1H), 2.03 - 1.95 (m, 1H). MS: m/z 427.24 (M+l). |
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