Structure of 220731-04-4
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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. : | 220731-04-4 |
Formula : | C10H15N3O2 |
M.W : | 209.25 |
SMILES Code : | CC(C)(C)OC(=O)NC1=NC=C(N)C=C1 |
MDL No. : | MFCD11182697 |
InChI Key : | NHVPESPHUUFULF-UHFFFAOYSA-N |
Pubchem ID : | 22064440 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302-H317 |
Precautionary Statements: | P280 |
Num. heavy atoms | 15 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.4 |
Num. rotatable bonds | 4 |
Num. H-bond acceptors | 3.0 |
Num. H-bond donors | 2.0 |
Molar Refractivity | 58.89 |
TPSA ? Topological Polar Surface Area: Calculated from |
77.24 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.72 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
1.07 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
1.83 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
0.68 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
0.43 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
1.15 |
Log S (ESOL):? ESOL: Topological method implemented from |
-1.84 |
Solubility | 3.0 mg/ml ; 0.0143 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (Ali)? Ali: Topological method implemented from |
-2.28 |
Solubility | 1.09 mg/ml ; 0.00521 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-2.62 |
Solubility | 0.497 mg/ml ; 0.00238 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 |
No |
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 |
-6.82 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) |
2.31 |
* 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 palladium 10% on activated carbon; hydrogen; In ethyl acetate; at 20℃; | tert-Butyl (5-nitropyridin-2-yl)carbamate (1 eq), Pd/C (10% w/w) and ethyl acetate was added to a flask under H2 atmosphere. The mixture was stirred at room temperature overnight. The mixture was filtered through a celite pad andthe filtrate concentrated under reduced pressure to obtain tert-butyl (5- am inopyridin-2-yl)carbamate.HPLC-MS (method A): Rt= 1.50 mm, [M+H] m/z: 210. Yield: quantitative yield. |
99% | With hydrogen;palladium 10% on activated carbon; In tetrahydrofuran; methanol; at 20℃; for 4h; | To 0.314 g (1.31 mmol) of the above nitro compound in THF-MeOH (16 mL, 1:1) was added 0.460 g of 10% Pd/C and the mixture was stirred under hydrogen (40 in/Hg) for 4 hrs. The reaction mixture was filtered through celite, washed with MeOH and concentrated to give 0.277 g (99% yield) of tert-butyl 5-aminopyridin-2-yl-carbamate as a white powder: 1H NMR (DMSO-d6) δ9.00 (br s, 1H), 7.62 (dd, J=2.7, 0.4 Hz, 1H), 7.39 (d, J=8.7 Hz, 1H), 6.94 (dd, J=8.7, 2.8 Hz, 1H), 4.92 (s, 2H), 1.44 (s, 9H). |
99% | With hydrogen;palladium 10% on activated carbon; In tetrahydrofuran; methanol; at 20℃; under 1016.0 Torr; for 4h; | Example 37Synthesis of N5-[4-[2-(difluoromethyl)-4-methoxy-1H-benzimidazol-1-yl]-6-(4-morpholinyl)-1,3,5-triazin-2-yl]-2,5-pyridinediamineThe compound was synthesized according to Method A.To 0.652 g (4.69 mmol) of 2-amino-5-nitropyridine in THF (5 mL) was added 3.5 mL of NaHMDS (2M solution in THF) at 0 C. After 20 min a solution of 1.085 g (4.97 mmol) of di-tert-butyl dicarbonate in THF (6 mL) was added and the mixture was slowly warmed to room temperature overnight. Water was added, and the mixture was extracted with EtOAc (×4). The organic layer was washed with brine, dried (Na2SO4), and concentrated. Chromatography on, silica with hexanes-EtOAc (7:3), gave 0.695 g (62% yield) of tert-butyl-5-nitropyridin-2-ylcarbamate as an orange powder: 1H NMR (CDCl3) δ 9.19 (dd, J=2.8, 0.5 Hz, 1H), 8.93 (br s, 1H), 8.46 (ddd, J=9.4, 2.8, 0.5 Hz, 1H), 8.20 (dd, J=9.5, 0.5 Hz, 1H), 1.59 (s, 9H); LCMS (APCI-) m/z: 238 (MH+, 100%).To 0.314 g (1.31 mmol) of the above nitro compound in THF-MeOH (16 mL, 1:1) was added 0.460 g of 10% Pd/C and the mixture was stirred under hydrogen (40 in/Hg) for 4 hrs. The reaction mixture was filtered through celite, washed with MeOH and concentrated to give 0.277 g (99% yield) of tert-butyl 5-aminopyridin-2-yl-carbamate as a white powder: 1H NMR (DMSO-d6) δ9.00 (br s, 1H), 7.62 (dd, J=2.7, 0.4 Hz, 1H), 7.39 (d, J=8.7 Hz, 1H), 6.94 (dd, J=8.7, 2.8 Hz, 1H), 4.92 (s, 2H), 1.44 (s, 9H).To 0.277 g (1.33 mmol) of the above amino compound in THF (3 mL) was added 0.61 mL of n-butyllithium (2.5 M solution in hexanes) and the mixture was stirred for 10 min. A solution of 0.176 g (0.44 mmol) of 1-[4-chloro-6-(4-morpholinyl)-1,3,5-triazin-2-yl]-2-(difluoromethyl)-4-methoxy-1H-benzimidazole in THF (5 mL) was added and the resulting mixture was stirred for 1 hr at room temperature. The reaction mixture was neutralized with acetic acid, diluted with water, and extracted with EtOAc. The organic layer was washed with water and aq. NH3, dried, and concentrated. Chromatography on silica, eluting with hexanes-EtOAc (7:3), then with CH2Cl2-EtOAc (3:1), gave 0.033 g (13% yield) of tert-butyl 5-[4-[2-(difluoromethyl)-4-methoxy-1H-benzimidazol-1-yl]-6-(4-morpholinyl)-1,3,5-triazin-2-yl]amino}-2-pyridinylcarbamate: 1H NMR (DMSO-d6) δ10.02 (s, 1H), 9.66 (s, 1H), 8.54 (s, 1H), 8.17-7.80 (m, 4H), 7.39 (d, J=8.7 Hz, 1H), 6.97-6.93 (m, 1H), 3.98 (s, 3H), 3.82 (s, 4H), 3.74-3.72 (m, 4H), 1.48 (s, 9H).To 0.033 g (0.06 mmol) of the above carbamate in CH2Cl2 (3 mL) was added 0.1 mL (1.30 mmol) of trifluoroacetic acid, and the mixture was stirred for 5 hrs. The reaction mixture was diluted with CH2Cl2 and aq. NH4OH, and the organic layer was washed with brine, dried (Na2SO4), and concentrated. The residue was recrystallized from EtOH/CH2Cl2 to give 0.0133 g (49% yield) of N5-[4-[2-(difluoromethyl)-4-methoxy-1H-benzimidazol-1-yl]-6-(4-morpholinyl)-1,3,5-triazin-2-yl]-2,5-pyridinediamine, as a brown powder: mp 267-270 C.; 1H NMR (DMSO-d6) δ9.67-9.49 (m, 1H), 8.18-7.27 (m, 5H), 6.96 (d, J=7.6 Hz, 1H), 6.48 (d, J=8.4 Hz, 1H), 5.87-5.75 (m, 2H), 3.98 (s, 3H), 3.81 (s, 4H), 3.71 (s, 4H); HRMS (ESI) M+H+ Calcd. for C21H22F2N9O2: m/z 470.1859. Found: m/z 470.1867. |
97% | With hydrogen;palladium on activated charcoal; In tetrahydrofuran; methanol; for 6h; | PREPARATION 47 tert-Butyl 5-aminopyridin-2-ylcarbamate tert-Butyl 5-nitropyridin-2-ylcarbamate (4.00 g, 16.72 mmol, Preparation 46) was dissolved in THF/MeOH. Pd/C (2.03 g, 1.91 mmol) was added and the reaction mixture was put under a hydrogen atmosphere. The reaction mixture was stirred for a total of 6h. The reaction mixture was filtered and evaporated to yield the desired product as a purple solid (3.40 g, 97% yield) which was stored at -20 C. LRMS (m/z): 210 (M+1)+ |
97% | With hydrogen;palladium on activated charcoal; In tetrahydrofuran; methanol; for 6h; | ferf-Butyl 5-nitropyridin-2-ylcarbamate (4.00 g, 16.72 mmol, Preparation 46) was dissolved in THF/MeOH. Pd/C (2.03 g, 1 .91 mmol) was added and the reaction mixture was stirred under hydrogen atmosphere. The reaction mixture was stirred for a total of 6h. The reaction mixture was filtered and evaporated to yield the desired product as a purple solid (3.40 g, 97% yield) which was stored at -20 C.LRMS (m/z): 210 (M+1 )+ |
97% | With palladium 10% on activated carbon; hydrogen; triethylamine; In methanol; ethyl acetate; under 760.051 Torr; for 20h; | B. Synthesis of N-(5-amino(2-pyridyl))(tert-butoxy)carboxamide (0133) To a suspension of (tert-butoxy)-N-(5-nitro(2-pyridyl))carboxamide (0.27 g, 1.13 mmol) in methanol (2 mL), ethyl acetate (4 mL) and TEA (0.16 mL) was added 10% Pd/C (60 mg, 0.056 mmol) under argon. The reaction mixture was hydrogenated under 1 atm H2 for 20 hr, filtered through Celite and concentrated in vacuo to give N-(5-amino(2-pyridyl))(tert-butoxy)carboxamide (0.226 g, 97%). 1H-NMR (DMSO-d6): δ 1.40 (s, 9H), 4.92 (br s, 2H), 6.89-6.91 (dd, 1 H), 7.35-7.37 (d, 1 H), 7.58 (d, 1 H), 9.06 (s, 1 H). |
64% | With palladium 10% on activated carbon; hydrogen; In methanol; at 20℃; for 1h; | Synthesis of compound 223.3. To a suspension of 10% Pd/C (0.0 lOg) in methanol (5ml) was added 223.2 (0.500g, 2.1mmol, l .Oeq) in M eOH (5mL). Suspension was purged with hydrogen gas for lh at room temperature. Reaction mixture was filtered through celite washed with methanol and obtained filtrate was concentrated under reduced pressure and purified by flash chromatography to get pure 223.3 (0.28 g, 64.0 %) MS (ES): m/z 209.25 [M+H]+. |
38.6 g | With ammonium chloride; zinc; In tetrahydrofuran; methanol; water; at 20℃; for 12h; | A 3-L round-bottomed flask was charged with tert-butyl (5-nitro-2- pyridinyl)carbamate (96.4 g, 403 mmol), 500 mL of MeOH, 500 mL of THF, and 100 mL of sat aq NH4C1. To this was slowly added (over 10 min) zinc dust (105 g, 1612 mmol, Strem Chemical Inc, Newburyport, MA). The mixture was stirred at room temperature for 12 h, then filtered. The filtrate was concentrated and then diluted with EtOAc and washed with water. The organic extracts were dried with MgS04, filtered, and concentrated to give a solid which was recrystallized from MeOH to give tert-butyl (5-amino-2-pyridinyl)carbamate (38.6 g) as a light yellow solid. |
38.6 g | With ammonium chloride; zinc; In tetrahydrofuran; methanol; water; at 20℃; for 12h; | A 3-L round-bottomed flask was charged with tert-butyl (5-nitro-2- pyridinyl)carbamate (96.4 g, 403 mmol), 500 mL of MeOH, 500 mL of THF, and 100 mL of sat aq NH4Cl. Zinc (105 g, 1610 mmol, Strem Chemical Inc, Newburyport, MA) was slowly added (over 10 min) to this solution. The mixture was stirred at room temperature for 12 h, then filtered. The filtrate was concentrated and then diluted with EtOAc and washed with water. The organic extracts were dried over MgS04, filtered, and concentrated. The resulting solid was recrystallized from MeOH to give tert-butyl(5-amino-2-pyridinyl)carbamate (38.6 g) as a light-yellow solid. |
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