Structure of 942920-55-0
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CAS No. : | 942920-55-0 |
Formula : | C10H9BrN2O2 |
M.W : | 269.10 |
SMILES Code : | O=C(C1=CC2=C(Br)C=CN=C2N1)OCC |
MDL No. : | MFCD11518924 |
InChI Key : | VLZWUULVFAASBC-UHFFFAOYSA-N |
Pubchem ID : | 44608107 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H332-H335 |
Precautionary Statements: | P261-P280-P305+P351+P338 |
Num. heavy atoms | 15 |
Num. arom. heavy atoms | 9 |
Fraction Csp3 | 0.2 |
Num. rotatable bonds | 3 |
Num. H-bond acceptors | 3.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 59.88 |
TPSA ? Topological Polar Surface Area: Calculated from |
54.98 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
2.28 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
2.56 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
2.5 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
1.91 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
2.85 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
2.42 |
Log S (ESOL):? ESOL: Topological method implemented from |
-3.37 |
Solubility | 0.116 mg/ml ; 0.000429 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-3.36 |
Solubility | 0.117 mg/ml ; 0.000434 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-4.25 |
Solubility | 0.0153 mg/ml ; 0.0000569 mol/l |
Class? Solubility class: Log S scale |
Moderately 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 |
-6.12 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<0.0 |
Synthetic accessibility? Synthetic accessibility score: from 1 (very easy) to 10 (very difficult) |
2.07 |
* 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 |
---|---|---|
68% | With potassium acetate;(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; In N,N-dimethyl-formamide; at 90℃; for 48h; | A mixture of <strong>[942920-55-0]ethyl 4-bromo-1H-pyrrolo[2,3-b]pyridine-2-carboxylate</strong> (1.0 g, 3.9 mmol), 4,4,4',4',5,5,5',5'-octamethyl-2,2'-bi-1,3,2-dioxaborolane (2.1 g, 7.8 mmol), KOAc (1.2 g, 11.7 mmol) and Pd(dppf)Cl2 (0.3 g, 0.4 mmol) in DMF (20 mL) was heated at 90 C. for 48 h under inert atmosphere. After cooling to rt, the reaction was quenched by aqueous NH4Cl. The resulting mixture was extracted with AcOEt. The organic layer was washed with brine, water, and dried over sodium sulfate. Concentration in vacuo gave the residue, which was purified by YAMAZEN Fast Flow Liquid Chromatography (silica gel, EtOAc:hexane=1:1) to give the desired product as a white solid (0.8 g, 68%). 1H NMR (400 MHz, DMSO-d6) ppm 1.33-1.37 (m, 15H), 4.37 (q, 2H, J=7.1 Hz), 7.29 (d, 1H, J=2.0 Hz), 7.40 (d, 1H, J=4.5 Hz), 8.44 (d, 1H, J=4.3 Hz), 12.55 (brs, 1H). MS (ESI): m/z 315 (M-1)-, 317 (M+1)+ |
68% | With potassium acetate;dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; In N,N-dimethyl-formamide; at 90℃; for 48h; | Ethyl 4-bromo-1 H-pyrrolo[2,3-6]pyridine-2-carboxylate (1.0 g, 3.9 mmol), 4l4,4',4',5,5,5',5'-octamethyl-2,2'-bi-1,3,2-dioxaborolane (2.1 g, 7.8 mmol), KOAc (1.2 g, 11.7 mmol) and Pd(dppf)CI2 (0.3 g, 0.4 mmol) in DMF (20 ml_) was heated at 90 0C for 48 h under inert atmosphere. After cooling to rt, the reaction was quenched with aqueous NH4CI. The resulting mixture was extracted with AcOEt. The organic layer was washed by water, brine, and dried over sodium sulfate. Concentration in vacuo gave the residue, which was purified by YAMAZEN Fast Flow Liquid Chromatography (silica gel, EtOAc.hexane , 1:1) to give the desired product as a white solid (0.8 g, 68 %). 1H NMR (400MHz, DMSO-d6) ppm 1.33- <n="98"/>1.37 (m, 15H), 4.37 (q, 2H, J = 7.1 Hz), 7.29 (d, 1 H1 J = 2.0 Hz), 7.40 (d, 1 H1 J = 4.5 Hz), 8.44 (d, 1 H, J = 4.3 Hz), 12.55 (brs, 1 H). LC/MS: m/z 315 (M-1 )-, 317 (M+1)+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
77% | Step A: Ethyl 4-bromo-1 H-pyrrolor2,3-lpyridine-2-carboxylate; Ethyl 1 H-pyrrolo[2,3-]pyridine-2-carboxylate-7-oxide (1 g, 5 mmol), (prepared using methods disclosed in WO 2000/044753 see Example 6, Step C), was added to a suspension of tetramethylammonium bromide (1.2 g, 7.5 mmol) in N, N- dimethylformamide (50 ml_). The resulting mixture was cooled to 0 C and methanesulfonic anhydride (1.7 g, 10 mmol) was added portionwise. After being warmed up to room temperature and stirred for another 6 hours, the reaction mixture was poured into water (100 ml_). After neutralization with 50 % aqueous sodium hydroxide, the resulting solution was extracted with ethyl acetate, followed by washing the organic layer with brine and water. Concentration in vacuo gave the residue, which underwent SCX purification to afford the title compound as a pale yellow solid (1 g, 77 %). 1H NMR (400 MHz, DMSO-d6) ppm 1.35 (t, 3 H, J = 7.1 Hz), 4.36 (q, 2 H1 J = 7.1 Hz), 7.05 (d, 1 H, J = 2.0 Hz), 7.48 (d, 1 H1 J = 5.1 Hz), 8.28 (d, 1 H, J = 5.1 Hz), 12.95 (brs, 1 H). | |
77% | With tetramethylammonium bromide; Methanesulfonic anhydride; In N,N-dimethyl-formamide; at 0 - 20℃; for 6h; | Ethyl 1H-pyrrolo[2,3-b]pyridine-2-carboxylate 7-oxide (1.0 g, 5.0 mmol), which was prepared according to WO2000044753, was added to a suspension of tetramethylammonium bromide (1.2 g, 7.5 mmol) in DMF (50 mL). The resulting mixture was cooled to 0 C. and methanesulfonic anhydride (1.7 g, 10 mmol) was added portion wise. After being warmed up to rt and stirred for another 6 h, the reaction mixture was poured into water (100 mL). By neutralizing it with 50% aqueous sodium hydroxide, the resulting solution was extracted with AcOEt, followed by washing the organic layer with brine and water. Concentration in vacuo gave the residue, which underwent SCX purification to afford the desired compound as a pale yellow solid (1.0 g, 77%). 1H NMR (400 MHz, DMSO-d6) ppm 1.35 (t, 3H, J=7.1 Hz), 4.36 (q, 2H, J=7.1 Hz), 7.05 (d, 1H, J=2.0 Hz), 7.48 (d, 1H, J=5.1 Hz), 8.28 (d, 1H, J=5.1 Hz), 12.95 (brs, 1H). MS (ESI): m/z 269, 271 (M+1)+ |
77% | With tetrabutylammomium bromide; Methanesulfonic anhydride; In N,N-dimethyl-formamide; at 0 - 20℃; for 6h; | Ethyl 1H-pyrrolo[2,3-6]pyridine-2-carboxylate 7-oxide (1.0 g, 5.0 mmol), which was prepared according to WO2000044753, and tetramethylammonium bromide (1.2 g, 7.5 mmol) were added to DMF (50 iml_). The mixture was cooled to 0 0C and methanesulfonic anhydride (1.7 g, 10 mmol) was added portion wise. The resulting suspension was warmed up to rt and stirred for 6 h. The mixture was poured in water (100 ml_) and the solution was neutralized with 50 % aqueous NaOH. The resulting solution was extracted with AcOEt, and then, the organic layer was washed by water and brine. Concentration in vacuo gave the residue, which was purified by SCX cartridge to afford the desired compound as a pale yellow solid (1.0 g, 77%). 1H NMR (400MHz, DMSO-c/6) ppm 1.35 (t, 3H1 J = 7.1 Hz), 4.36 (q, 2H, J = 7.1 Hz), 7.05 (d, 1 H, J = 2.0 Hz), 7.48 (d, 1 H1 J = 5.1 Hz), 8.28 (d, 1 H, J = 5.1 Hz), 12.95 (brs, 1 H). LC/MS: m/z 269, 271 (M+1)+ |
61% | With tetramethylammonium bromide; Methanesulfonic anhydride; In chloroform; at 0 - 25℃; for 16h; | To a stirred solution of 2-(ethoxycarbonyl)-lH-pynOlo[2,3-b]pyridine 7-oxide (3.50 g, 17.0 mmol) and Me4NBr (3.92 g, 25.5 mmol) in CHCb (40 mL) at 0 C was added Ms20 (5.91 g, 34.0 mmol) in portions. The reaction mixture was allowed to warm to 25 C and stir for 16 h. A pale yellow suspension was formed. LCMS showed the reaction was completed. The mixture was concentrated under reduced pressure to give a residue. The residue and the above batch were combined and neutralized with cold 0.5 N aq NaHCCb (80 mL) and stirred for 0.5 hour and then filtered. The filter cake was further purified by washing with EtOAc/pentane (15 mL/30 mL) to give ethyl 4-bromo-lH-pynOlo[2,3-b]pyridine-2- carboxylate (3.2 g, average yield: 61%) as an off-white solid. NMR (400 MHz, DMSO-rfc) d 1.36 (3H, t, J= 7.2 Hz), 4.37 (2H, q, J= 12 Hz), 7.06 (1H, s), 7.48 (1H, d, J= 5.2 Hz), 8.29 (1H, d, J= 4.8 Hz), 12.96 (1H, br s). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With potassium tert-butylate;(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; In N,N-dimethyl-formamide; at 120℃; for 0.5h;Microwave irradiation; | Step B: Ethyl 4-[(4-nitrophenyl)aminol-1/-/-pyrrolof2,3-ipyridine-2-carboxylate; To a suspention of ethyl 4-bromo-1 /-/-pyrrolo[2,3-]pyridine-2-carboxylate (Step A) (538.2 mg, 2 mmol), potassium tert-butoxide (448.8 mg, 4 mmol), 4-nitroaniline (commercially available, for example, from Sigma-Aldrich) (828.8 mg, 6 mmol), and EPO <DP n="56"/>lambda/,lambda/-dimethylformamide (18 ml_) in a microwave vial was added Pd(dppf)CI2 (326.6 mg, 0.4 mmol). After capping, the mixture was heated with Creator at 120 0C for 30 min. The reaction mixture was quenched by saturated aqueous ammonium chloride, and extracted with dichloromethane (20 ml_, 3 times). The organic layer was washed with brine, dried over sodium sulfate, and then evaporated to dryness under reduced pressure. The residue was used for the next step without further purification. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium carbonate;tetrakis(triphenylphosphine) palladium(0); In 1,2-dimethoxyethane; water; at 120℃; for 0.5h;Microwave irradiation; | Ethyl 4-bromo-1H-pyrrolo[2,3-b]pyridine-2-carboxylate (step A in general intermediate 8, 134.6 mg, 0.5 mmol) and 1-ethyl-3-(3-nitrophenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (general intermediate 9, 171.5 mg, 0.5 mmol) were dissolved in DME (4 mL) and aqueous Na2CO3 (2 M, 0.5 mL). The resulting solution and Pd(PPh3)4 (34.7 mg, 0.03 mmol) were added to a microwave vial. After capping, the mixture was heated with Creator at 120 C. for 30 minutes. SCX purification afforded the residue, which was directly used for the next step without further purification. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
500 mg | With dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; sodium carbonate; In 1,2-dimethoxyethane; water; at 140℃; for 1h; | To a mixture ethyl 4-bromo-1 H-pyrrolo[2,3-b]pyridine-2-carboxylate (500 mgs, 1.86 mmol) and 2-((tetrahydro-2H-pyran-4-yl)oxy)-5-(4,4,5,5-tetramethyl- 1 ,3,2-dioxaborolan-2-yl)benzonitrile (673 mgs, 2.0 mmol) in DME (6 mL) was 2.0 M aqueous Na2CO3 (2.0 mL, 4 mmol) and Pd(PPh3)4 (107 mgs, 0.09 mmol). The reaction mixture was heated at 140 C for 1 hr. After cooling to rt, ethyl acetate (10 mL) and water (20 mL) was added and the solids were filtered and washed with water and dried to give ethyl 4-(3-cyano-4-((tetrahydro-2H-pyran-4-yl)oxy)phenyl)-1 H-pyrrolo[2,3- b]pyridine-2-carboxylate (500 mgs) LCMS-ESI+ (m/z): [M+H]+ calcd for C22H21 N3O4 as (M+H)+ 392.4 found: 392.1 |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
36.1% | With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; sodium carbonate; In 1,4-dioxane; water; at 90℃; for 16h;Inert atmosphere; | A solution of 2'-(bis(4-methoxybenzyl)amino)-N,N-dimethyl-5'-(4, 4,5,5- tetramethyl-l,3,2-dioxaborolan-2-yl)-[2,3'-bipyridine]-5-carboxamide (3.00 g, 4.93 mmol) in dioxane (15 mL) and H2O (5 mL) was added ethyl 4-bromo-lH-pyrrolo[2,3-b]pyridine-2- carboxylate (1.00 g, 3.72 mmol), Pd(dppf)Cl2 (0.271 g, 0.371 mmol) and Na2C03 (1.18 g, 11.2 mmol). The mixture was stirred at 90 C under N2 atmosphere for 16 h. A black suspension was formed. LCMS showed the purity of desired product (Rt = 0.709 min; MS Calc?d: 670.8; MS Found: 671.3 [M+H]+). The mixture was added sat.NFUCl (40 mL), extracted with EtOAc (40 mL x3). The combined layer was washed with brine (30 mL), dried over Na2SCri and concentrate. The residue was purified by Combi Flash (EtOAc in PE from 0 to 100%) to give ethyl 4-(2'-(bis(4-methoxybenzyl)amino)-5-(dimethylcarbamoyl)-[2,3'-bipyridin]-5'-yl)-lH- pyrrolo[2,3-b]pyridine-2-carboxylate (0.9 g, yield: 36.1%) as a brown solid. NMR (400 MHz, CDCb) d 1.44 (3H, t, J= 7.2 Hz), 3.03 (3H, s), 3.15 (3H, s), 3.80 (6H, s), 4.15 (4H, s), 4.46 (2H, q, J= 7.2 Hz), 6.83 (4H, d , J= 8.4 Hz), 7.06 (4H, d, J= 8.4 Hz), 7.28 (1H, d, J= 4.8 Hz), 7.47 (1H, s), 7.75-7.81 (2H, m), 8.21 (1H, d , J= 2.4 Hz), 8.55 (1H, d , J= 4.8 Hz), 8.75- 8.78 (2H, m), 10.13 (1H, br s). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
89% | With water; sodium hydroxide; In methanol; at 50℃; for 6h; | A mixture of ethyl 4-bromo-lH-pyrrolo[2,3-b]pyridine-2-carboxylate (1.50 g, 5.57 mmol) in MeOH (20 mL) was added NaOH (446 mg, 11.2 mmol) in H2O (2 mL), the reaction mixture was stirred at 50 C for 6 h to give a yellow suspension. LCMS showed the reaction was completed. The mixture was filtered. The filter cake was washed with MeCN (10 mL x2) to give 4-bromo-lH-pyrrolo[2,3-b]pyridine-2-carboxylic acid (1.2 g, yield: 89 %) as an off-white solid. NMR (400 MHz, DMSO-r e) d 6.51 (1H, s), 7.27 (1H, d, J= 5.2 Hz), 8.06 (1H, d, J= 5.2 Hz). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
91% | With tetrabutyl ammonium fluoride; In tetrahydrofuran; at 65℃; for 2h; | Into a 100 mL round-bottom flask was placed ethyl 1-(benzenesulfonyl)-4-bromo-1H-pyrrolo[2,3-b]pyridine-2-carboxylate (6.7 g, 16.4 mmol), tetrahydrofuran (100 mL), and 1M tetrabutylammonium fluoride (21.3 mL, 21.3 mmol) in tetrahydrofuran. The resulting solution was stirred for 2 hours at 65C. The mixture was concentrated under vacuum, washed solids with methanol (65 mL) to yield the title compound (4 g, 91%) as a solid. |
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