Structure of 132865-44-2
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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. : | 132865-44-2 |
Formula : | C7H6ClNO2 |
M.W : | 171.58 |
SMILES Code : | O=CC1=CN=C(OC)C(Cl)=C1 |
MDL No. : | MFCD04972383 |
InChI Key : | IZBHWLYKWKYMOY-UHFFFAOYSA-N |
Pubchem ID : | 14817550 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H302-H317 |
Precautionary Statements: | P280 |
Num. heavy atoms | 11 |
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 | 41.13 |
TPSA ? Topological Polar Surface Area: Calculated from |
39.19 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.68 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
1.25 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
1.56 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
0.52 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
2.12 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
1.43 |
Log S (ESOL):? ESOL: Topological method implemented from |
-1.96 |
Solubility | 1.87 mg/ml ; 0.0109 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (Ali)? Ali: Topological method implemented from |
-1.67 |
Solubility | 3.66 mg/ml ; 0.0213 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-2.71 |
Solubility | 0.333 mg/ml ; 0.00194 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 |
-6.46 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 |
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) |
1.74 |
* 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 |
---|---|---|
With chlorine; In water; | Starting materials of the formula (II) Example (II-1) STR13 9.5 g (0.069 mol) of 6-methoxy-nicotinaldehyde are suspended in 100 ml of water and chlorine is introduced at 45 C. until conversion is practically complete (about 2 hours). After cooling, the product, which isobtained in a crystalline form, is then isolated by filtering with suction. 9.4 g (79% of theory) of 5-chloro-6-methoxynicotinaldehyde of melting point152 C. are obtained. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
82% | A suspension of 6-(i -methyl- 1H-pyrazol-4-yl)-4-(6-(piperazin- 1 -yl)pyridin-3 - yl)pyrazolo[i,5-a]pyridine-3-carbonitrile dihydrochloride (Example 2; 30 mg, 0.066 mmol) in DCM (1 mL) was treated with DIEA (29 tL, 0.16 mmol). After stirring for 5 mm at ambient temperature, the mixture was treated sequentially with <strong>[132865-44-2]3-chloro-5-formyl-2-methoxypyridine</strong> (17 mg, 0.098 mmol) and NaBH(AcO)3 (28 mg, 0.13 mmol). The resulting mixture was stirred for 12 h at room temperature, and then concentrated in vacuo. The residue was purified by Ci 8 reverse- phase chromatography (5-95% ACN/water with 0.1% TFA as the gradient eluent) to afford the title compound as the TFA salt. The salt was diluted with EtOAc, treated with saturated NaHCO3(aq), and stirred for 10 mm at ambient temperature. The organic extracts were separated, dried over anhydrous Mg504, filtered, and concentrated in vacuo to cleanly afford the title compound (29 mg, 82% yield). MS (apci) m/z = 540.2 (M+H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
16% | With sodium tris(acetoxy)borohydride; In dichloromethane; at 20℃; | A solution of 4-(6-(3 ,6-diazabicyclo[3. 1.1 ]heptan-3 -yl)pyridin-3 -yl)-6-(2-morpholinoethoxy)pyrazolo[ 1,5 -a]pyridine-3 -carbonitrile bi s(2,2,2-trifluoroacetate)(Intermediate P76; 50 mg, 0.074 mmol) and <strong>[132865-44-2]5-chloro-6-methoxynicotinaldehyde</strong> (31 mg, 0.18 mmol) in DCM (3mL) ()was treated with NaBH(AcO)3 (57 mg, 0.27 mmol). After stirring the reaction mixture overnight at ambient temperature, additional NaBH(AcO)3 (38 mg, 0.18 mmol) was introduced, and the reaction was stirred for an additional 5 h at ambient temperature. Thereaction mixture was partitioned between water and DCM, then extracted with DCM (3x). The combined organic extracts were dried over anhydrous Na2SO4(), filtered, and concentrated in vacuo. The crude residue was purified by silica chromatography (0-20% MeOH in DCM with 0.2% NH4OH as the gradient eluent) to afford the title compound (7 mg, 16% yield). MS (apci) m/z = 601.3 (M+H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
66% | With sodium tris(acetoxy)borohydride; In dichloromethane; at 20℃; | A solution of 4-(5-(3 ,6-diazabicyclo[3. 1.1 ]heptan-3 -yl)pyrazin-2-yl)-6-(2-morpholinoethoxy)pyrazolo[ 1,5 -a]pyridine-3 -carbonitrile bi s(2,2,2-trifluoroacetate)(Intermediate P106; 22.2 mg, 0.0329 mmol) in DCM (658.2 tL) was treated sequentially with 5- chloro-6-methoxynicotinaldehyde (28.23 mg, 0.1646 mmol) and NaBH(AcO)3 (69.75 mg, 0.3291 mmol), then stirred overnight at ambient temperature. The reaction mixture was filtered through a PVDF (0.45 .im) disc syringe filter. The filtrate was purified directly by silica chromatography (using 0-100% DCM in Hexanes then 0-10% MeOH in DCM with 0.1% NH4OH as the gradient eluents). Fractions containing the desired product were concentrated in vacuo azeotroping with Et20 to cleanly afford the title compound (13.08 mg, 66% yield). MS (apci) m/z = 602.2 (M+H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
35% | With sodium tris(acetoxy)borohydride; In dichloromethane; at 20℃; | A mixture of <strong>[132865-44-2]5-chloro-6-methoxynicotinaldehyde</strong> (59.56 mg, 0.347 1 mmol), 4-(2-(3,6- diazabicyclo[3. 1.1 ]heptan-3 -yl)pyrimidin-5 -yl)-6-(2-morpholinoethoxy)pyrazolo[ 1,5 -a]pyridine3-carbonitrile (Intermediate P117; 31 mg, 0.069 mmol) and NaBH(AcO)3 (147.1 mg, 0.6943 mmol) in DCM (694.3 tL) was stirred overnight at ambient temperature. The reaction mixture was purified directly by silica chromatography (using 0-10% MeOH in EtOAc with 0.1% NH4OH as the gradient eluent) to cleanly afford the title compound (15.19 mg, 35% yield). MS (apci) m/z = 602.3 (M+H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
55% | A solution of 4-(6-(3 ,6-diazabicyclo[3.1. 1 ]heptan-3 -yl)pyridin-3 -yl)-6-ethoxypyrazolo[ 1,5 -a]pyridine-3 -carbonitrile dihydrochloride (Intermediate P7; 30 mg, 0.0692 mmol) in DCM (692 tL) was treated with DIEA (30.1 tL, 0.173 mmol). After stirring for 5 mm at room temperature, the reaction mixture was treated sequentially with 5-chloro-6- methoxynicotinaldehyde (13.1 mg, 0.0762 mmol) and NaBH(AcO)3 (29.3 mg, 0.138 mmol). The mixture was stirred overnight at ambient temperature. The resulting suspension was diluted with DCM, and then treated dropwise with MeOH until a homogeneous solution had formed. After concentrating the quenched mixture in vacuo, the residue was purified by silica chromatography (hexanes first followed by 0-10% MeOH in DCM with 2% NH4OH as the gradient eluent) to cleanly provide the title compound (19.8 mg, 55% yield). MS (apci) m/z = 516.2 (M+H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
63% | A solution of 4-(6-(3 ,6-diazabicyclo[3. 1.1 ]heptan-3 -yl)pyridin-3 -yl)-6-(2- hydroxy-2-methylpropoxy)pyrazolo[ 1,5 -a]pyridine-3 -carbonitrile dihydrochloride (Intermediate P43; 30mg, 0.063 mmol), in DCM (1 mL) was treated with DIEA (27 tL, 0.16 mmol) and stirred for 5 mm at ambient temperature. The resulting mixture was treated sequentially with 5-chloro- 6-methoxynicotinaldehyde (11 mg, 0.063 mmol) and NaBH(AcO)3 (27 mg, 0.13 mmol). After stirring 12 h at ambient temperature, the reaction mixture was diluted with DCM and washed with 10% Na2CO3(aq). The combined organic extracts were dried over anhydrous MgSO4(), filtered, and concentrated in vacuo. The residue was purified by silica chromatography (10% MeOHI DCM with 1% NH4OH as the eluent) to cleanly provide the title compound (22 mg, 63% yield). MS (apci) m/z = 560.3 (M+H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
61% | With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; In dichloromethane; at 20℃; for 4h; | A suspension of 4-(6-(3 ,6-diazabicyclo[3. 1.1 ]heptan-3 -yl)pyridin-3 -yl)-6-(2-hydroxy- 2-methylpropoxy)pyrazolo[ 1,5 -a]pyridine-3 -carbonitrile dihydrochloride (Intermediate P43; 50 mg, 0.105 mmol) in DCM (2 mL) was treated sequentially with 5-choro-6-methoxynicotinic acid (9.82 mg, 0.0524 mmol), HATU (23.9 mg, 0.0628 mmol) and DIEA (36.5 tL, 0.209 mmol). was stirred for 4 h at ambient temperature. The reaction mixture was purified directly by silica chromatography (using 50-100% EtOAc in Hexanes then 0-20% MeOH in EtOAc as the gradient eluent) to cleanly provide the title compound (18.3 mg, 61% yield). MS (apci) m/z = 574.2 (M+H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
51% | With acetate sodium borohydride; In dichloromethane; at 20℃; for 12h; | To a 100mL single-necked bottle, add <strong>[132865-44-2]5-chloro-6-methoxynicotinaldehyde</strong> (0.32g, 1.9mmol), 3- (5-bromopyridin-2-yl) -3,6-diazabicyclo [3.1. 1] Heptane dihydrochloride (0.6 g, 1.9 mmol), sodium borohydride acetate (1.2 g, 5.8 mmol), dichloromethane 20 mL, and stirring at room temperature for 12 hours. After the TLC spot reaction, water was added, extracted with ethyl acetate, the organic phases were combined, washed with water, dried over anhydrous sodium sulfate, filtered, concentrated under reduced pressure, and separated by column chromatography to obtain the product 3- (5-bromopyridine-2 -Yl) -6-((5-chloro-6-methoxypyridin-3-yl) methyl) -3,6-diazabicyclo [3.1.1] heptane (0.4g, yield 51% ). |
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