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CAS No. : | 887115-56-2 | MDL No. : | MFCD16112604 |
Formula : | C7H6BrN3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | MZTKBGMGLWHOMN-UHFFFAOYSA-N |
M.W : | 212.05 | Pubchem ID : | 57415889 |
Synonyms : |
|
Num. heavy atoms : | 11 |
Num. arom. heavy atoms : | 9 |
Fraction Csp3 : | 0.14 |
Num. rotatable bonds : | 0 |
Num. H-bond acceptors : | 2.0 |
Num. H-bond donors : | 0.0 |
Molar Refractivity : | 46.49 |
TPSA : | 30.71 Ų |
GI absorption : | High |
BBB permeant : | Yes |
P-gp substrate : | No |
CYP1A2 inhibitor : | Yes |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -6.51 cm/s |
Log Po/w (iLOGP) : | 1.91 |
Log Po/w (XLOGP3) : | 1.53 |
Log Po/w (WLOGP) : | 1.73 |
Log Po/w (MLOGP) : | 1.68 |
Log Po/w (SILICOS-IT) : | 1.62 |
Consensus Log Po/w : | 1.69 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 0.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -2.72 |
Solubility : | 0.4 mg/ml ; 0.00189 mol/l |
Class : | Soluble |
Log S (Ali) : | -1.78 |
Solubility : | 3.49 mg/ml ; 0.0165 mol/l |
Class : | Very soluble |
Log S (SILICOS-IT) : | -2.96 |
Solubility : | 0.233 mg/ml ; 0.0011 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 0.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 1.76 |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* 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 |
---|---|---|
73% | Stage #1: With sodium hydride In tetrahydrofuran at 0℃; for 0.5 h; Inert atmosphere Stage #2: at 25℃; Inert atmosphere |
Step 1 5-bromo-1-methyl-1H-pyrazolo[3,4-b]pyridine (Compound 4-2) Sodium hydride (720 mg, 30 mmol) was added into a 100 ml reaction flask, and anhydrous THF (40 mL) was added to the reaction flask. After stirring at 0° C. for 5 min, the reaction substrate 5-bromo-1H-pyrazolo[3,4-b]pyridine (4.0 g, 20 mmol, commercially available) was dissolved in THF (20 ml), and the resulting solution was slowly added dropwise to the reaction flask through the constant pressure funnel, and stirred for 30 min. Afterwards, iodomethane (1.6 ml, 26 mmol) was added dropwise to the reaction system. After completion of the addition, the reaction solution was slowly warmed to room temperature and stirred overnight. The reaction progress was monitored by TLC. After completion of the reaction, 10 ml of ice water was added to the reaction system to quench the reaction, THF was removed by concentration under reduced pressure, and the residue was extracted with dichloromethane (60 ml) and water (20 ml*3). The organic layer was dried over anhydrous Na2SO4, and concentrated under reduced pressure to give 4.1 g brown solid, which was separated and purified by Combi-flash chromatography [PE:EA=10:90-40:60] to give the title compound 4-2 (3.1 g, 73percent). MS m/z (ESI): 211.9 [M+H]+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
27% | for 48 h; Heating / reflux | Preparation 9; 5-Bromo- 1 -methyl- lH-pyrazolo[3,4-b]pyridine; EPO <DP n="26"/> Dissolve l-methyl-5-aminopyrazole (Butt Park LTD; 1.0 g, 10.3 mmol) and 2- bromomalonaldehyde (Aldrich; 1.55 g, 10.3 mmol) in glacial acetic acid (160 niL) and reflux under nitrogen for 48 h. Concentrate under reduced pressure and purify via chromatography (silica gel, 90percent dichloromethane/10percent diethyl ether) to obtain 610 mg (27percent) of the title compound as an off-white solid. TOF MS ES+ exact mass calculated for C7H7N3Br (p+H): m/z = 21 1.9823, Found: 211.9838. |
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