Structure of 2-Iodo-6-methylpyridine
CAS No.: 62674-71-9
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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. : | 62674-71-9 |
Formula : | C6H6IN |
M.W : | 219.02 |
SMILES Code : | CC1=CC=CC(I)=N1 |
MDL No. : | MFCD11044364 |
InChI Key : | NRQIFSBIYCSMQV-UHFFFAOYSA-N |
Pubchem ID : | 12318009 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 8 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.17 |
Num. rotatable bonds | 0 |
Num. H-bond acceptors | 1.0 |
Num. H-bond donors | 0.0 |
Molar Refractivity | 41.92 |
TPSA ? Topological Polar Surface Area: Calculated from |
12.89 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.95 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
1.97 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
1.99 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
1.75 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
2.82 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
2.1 |
Log S (ESOL):? ESOL: Topological method implemented from |
-2.99 |
Solubility | 0.222 mg/ml ; 0.00101 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-1.87 |
Solubility | 2.98 mg/ml ; 0.0136 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-3.37 |
Solubility | 0.0936 mg/ml ; 0.000428 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 |
-6.24 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 |
1.0 |
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) |
2.06 |
* 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 |
---|---|---|
2.39 g (94%) | With sodium iodide; In acetonitrile; | Preparation 9 2-Iodo-6-methylpyridine (10b) To a solution of 2-bromo-6-methylpyridine (2.0 g, 11.6 mmol) and sodium iodide (2.78 g, 18.6 mmol) in dry acetonitrile (13 mL) was added acetyl chloride (1.9 g, 24.4 mmol) dropwise, and the resulting light yellow suspension was heated to reflux. G.C. analysis after 16 hours at reflux indicated only 50percent conversion. Added additional acetyl chloride (1 equivalent) and sodium iodide (0.8 equivalent) and refluxed for 16 hours. G.C. analysis indicated 90percent conversion to desired product in addition to the expected bromo and chloro by-products. The reaction was cooled to room temperature, diluted with aqueous potassium carbonate and sodium bisulfite (75 mL, 10 and 5percent respectively), and extracted with diethyl ether (2*75 mL). The organics were combined, washed with the carbonate/bisulfite solution, dried (sodium sulfate), filtered, and the solvent evaporated under reduced pressure to give 2.39 g (94percent) of crude product as a dark oil. Used without further purification. 1H NMR (CDCl3) delta2.52 (s, 3H,), 7.10 (d, 1H, J=7.51 Hz), 7.20 (t, 1H, J=7.69 Hz, J=7.51 Hz), 7.58 (d, 1H, J=7.69 Hz). (Tetrahedron Lett. 1990, 31, 6757) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
General procedure: Pyridines substituted at the 2-position with halides shown in Tables 2 and 3 are stirred in a mixture of toluene (900 mL) and anhydrous ether (600 mL). The resulting solutions were cooled to < -100 °C for 20 min at which point n-BuLi/hexane was added slowly over 22 min. After maintaining the temperature below -100 °C for 20 min, triisopropylborate was added dropwise, and then the reaction mixture was stirred below -70 °C. After stirring for 4 h, ether (500 mL) was added and the solution was allowed to stand overnight at room temp. Isopropanol was added (30mL), then the reaction mixture was stirred for 30 min, the allowed to stand without stirring for an additional 2 h. The resulting precipitate was collected by filtration then washed with ethyl ether and dried under nitrogen atmosphere for 1.5 h. The resulting triisopropoxy analog was treated with a mixture of acetone and water (450 mL/50 mL) to remove any contaminating n-butylborate lithium salt. The solids were collected by filtration, washed with acetone/water (9:1, 300 mL), and dried in air for 2h, then lyophilized overnight to afford product. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
87.6% | With tetrakis(triphenylphosphine) palladium(0); tetrabutyl ammonium fluoride; sodium acetate; In N,N-dimethyl-formamide; at 110℃; for 0.166667h; | A mixture of Compound la (55 mg, 0.171 mmol) 2-bromo-6-methylpyridine (23.4 ul, 0.205 mmol), tetrakis(triphenylphosphine)palladium (7.89 mg, 0.007 mmol), sodium acetate (28 mg, 0.342 mmol) and tetrabutylammonium fluoride (44.7 mg, 0.17 1 mmol)) in anhydrous DMF (3 mL) was heated at 110°C into a microwave oven (Biotage Smith Creator®) for 10 mm then cooled at r.t.. The reaction mixture was poured into water and extracted with EtOAc (3x). The organic layer was dried over Na2504 and the solvent was evaporated to dryness to give a crude which was purified via automated flashchromatography (SP1® Biotage, SNAP25 Cartridge), eluting with a EtOAc - PetroleumEther gradient from 75:25 to 1:1 to give mg 51(87.6percent) of the title compound.UPLC-MS [M+H]= 341.521H NMR (400 MHz, DMSO-d6) oe ppm 7.68 (t, 1 H), 7.31 (d, 1 H), 7.22 (d, 1 H), 5.66 (s,1 H), 3.43 (brt, 2 H), 3.15 (s, 2 H), 2.62 (brt, 2 H), 2.45 (s, 3 H), 1.42 (s, 9 H), 1.08 (s, 6H) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With tetrakis(triphenylphosphine) palladium(0); tetrabutyl ammonium fluoride; sodium acetate; In N,N-dimethyl-formamide; at 110℃; for 0.166667h; | The title compound was prepared following the procedure reported above for the compound of Example 1 replacing Compound llOa for Compound la and 2-iodo-6-methylpyridine for 3-chlorobenzoyl chloride. After the usual work-up, the reaction crude was purified by automated flash chromatography (SP1® Biotage, 10 g SNAP column) eluting with PE - EtOAc gradient from 9:1 to 6:4 affording the title product as a dense colourless oil (77.8 percent). E/Z mixture 55:45 (1H-NMR).UPLC-MS [M+H]= 353.16, 353.231H NMR (400 MHz, CHLOROFORM-d) mix of isomers oe ppm 7.57 (br s, 2 H), 7.20 - 7.27 (m, 2 H), 7.10 (br d, 2 H), 5.69 (s, 1 H) and 5.62 (s, 1 H), 3.26 - 3.41 (m, 4 H), 2.82 (s, 2 H), 2.59 (br s, 6 H), 2.51 (s, 2 H) and 2.53 (br s,2 H), 2.23 - 2.34 (m, 4 H), 2.21 (m, 2 H) and 1.94 - 2.12 (m, 4 H), 1.62 - 1.81 (m, 4 H), 1.49 (m, 18 H) |
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