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CAS No. : | 28694-94-2 | MDL No. : | MFCD16620323 |
Formula : | C9H10N2O4 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | KMSVFPDFFCHFRV-UHFFFAOYSA-N |
M.W : | 210.19 | Pubchem ID : | 54002717 |
Synonyms : |
|
Num. heavy atoms : | 15 |
Num. arom. heavy atoms : | 6 |
Fraction Csp3 : | 0.22 |
Num. rotatable bonds : | 4 |
Num. H-bond acceptors : | 4.0 |
Num. H-bond donors : | 1.0 |
Molar Refractivity : | 55.53 |
TPSA : | 98.14 Ų |
GI absorption : | High |
BBB permeant : | No |
P-gp substrate : | No |
CYP1A2 inhibitor : | Yes |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -6.58 cm/s |
Log Po/w (iLOGP) : | 1.49 |
Log Po/w (XLOGP3) : | 1.41 |
Log Po/w (WLOGP) : | 0.9 |
Log Po/w (MLOGP) : | 0.34 |
Log Po/w (SILICOS-IT) : | -0.79 |
Consensus Log Po/w : | 0.67 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 0.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -2.06 |
Solubility : | 1.82 mg/ml ; 0.00864 mol/l |
Class : | Soluble |
Log S (Ali) : | -3.08 |
Solubility : | 0.177 mg/ml ; 0.000841 mol/l |
Class : | Soluble |
Log S (SILICOS-IT) : | -1.91 |
Solubility : | 2.6 mg/ml ; 0.0124 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 3.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 2.05 |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P280-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302 | Packing Group: | N/A |
GHS Pictogram: |
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* 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 |
---|---|---|
Multi-step reaction with 2 steps 1: 87 percent / dppf; Cs2CO3 / Pd(OAc)2 / 16 h / 95 °C 2: H2 / Pt/C / methanol / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1: 87 percent / dppf; Cs2CO3 / Pd(OAc)2 / 16 h / 95 °C 2: H2 / Pt/C / methanol / 20 °C 3: TsOH*H2O / toluene / 48 h / Heating |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 4 steps 1: 87 percent / dppf; Cs2CO3 / Pd(OAc)2 / 16 h / 95 °C 2: H2 / Pt/C / methanol / 20 °C 3: TsOH*H2O / toluene / 48 h / Heating 4: 78 percent / Cy-MAP; CsF / Pd(OAc)2 / 1,2-dimethoxy-ethane; methanol / 12 h / Heating |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 5 steps 1: 87 percent / dppf; Cs2CO3 / Pd(OAc)2 / 16 h / 95 °C 2: H2 / Pt/C / methanol / 20 °C 3: TsOH*H2O / toluene / 48 h / Heating 4: 78 percent / Cy-MAP; CsF / Pd(OAc)2 / 1,2-dimethoxy-ethane; methanol / 12 h / Heating 5: LiOH*H2O / methanol / Heating |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 6 steps 1: 87 percent / dppf; Cs2CO3 / Pd(OAc)2 / 16 h / 95 °C 2: H2 / Pt/C / methanol / 20 °C 3: TsOH*H2O / toluene / 48 h / Heating 4: 78 percent / Cy-MAP; CsF / Pd(OAc)2 / 1,2-dimethoxy-ethane; methanol / 12 h / Heating 5: LiOH*H2O / methanol / Heating 6: 62 mg / HATU; Et3N / dimethylformamide |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 6 steps 1: 87 percent / dppf; Cs2CO3 / Pd(OAc)2 / 16 h / 95 °C 2: H2 / Pt/C / methanol / 20 °C 3: TsOH*H2O / toluene / 48 h / Heating 4: 78 percent / Cy-MAP; CsF / Pd(OAc)2 / 1,2-dimethoxy-ethane; methanol / 12 h / Heating 5: LiOH*H2O / methanol / Heating 6: HATU; Et3N / dimethylformamide |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
89% | With hydrogenchloride In water for 48h; | 6.6A Example 6; methyl (3-chloro-11-oxo-10, 11-dihydro-5h-dibenzorb, elfl, 4ldiazepin-8-yl) acetate; Example 6A; methyl (4-amino-3-nitrophenyl)acetate A mixture of N- [4- (cyanomethyl)-2-nitrophenyl] acetamide (4.8 g), concentrated HC1 (100 mL), and water (300 ML) was heated to reflux for two days, cooled to room temperature, and concentrated to near dryness under vacuum. The concentrate was treated with methanol (300 mL) and concentrated H2SO4 (30 mL), heated to reflux overnight, and concentrated under vacuum to remove the methanol. The residue was partitioned between ethyl acetate and water and the organic layers were combined, washed with saturated NAHC03 and brine, dried (MGS04), and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel with 7: 3 hexanes/ethyl acetate to provide 4. 1G (89%) of the desired product. MS (DCI) m/e 211 (M+H) +, 228 (M+NH4) + ; 1H NMR (300 MHz, DMSO-D6) 8 7.88 (d, J = 2 Hz, 1H), 7.39 (s, 2H), 7.30 (dd, J = 8.5, 2 Hz, 1H), 6.97 (d, J = 8.4 Hz, 1H), 3.61 (s, 3H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Stage #1: methyl 2-(4-amino-3-nitrophenyl)acetate With hydrogen In methanol at 20℃; for 6h; Stage #2: formic acid at 100℃; for 5h; | 3 Preparation 3; 1H-Benzimidazol-6-ylacetic Acid 1.9 g (9.04 mmol) of methyl (4-amino-3-nitrophenyl)acetate (J. Med. Chem., 1997, 40(7), 1049) are dissolved in 300 ml of methanol, and 480 mg of 10% Pd/C are added thereto. Hydrogenation is carried out at ambient temperature for 6 hours, the catalyst is filtered off and the solvent is evaporated under reduced pressure. 1.6 g of oil are thus obtained, which oil is dissolved in 18 ml of 98% formic acid and is heated at 100° C. for 5 hours. The solvent is subsequently evaporated under reduced pressure and 1.6 g of the title product are thus obtained. [0102] Thin layer chromatography (eluent: ethyl acetate/methanol=1/1): Rf 0.35. | |
Stage #1: methyl 2-(4-amino-3-nitrophenyl)acetate With palladium 10% on activated carbon; hydrogen In methanol at 20℃; for 6h; Stage #2: formic acid In water at 100℃; for 5h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
55% | With nitric acid; trifluoroacetic acid; at -10 - 20℃; for 18h; | methyl 2-(4-aminophenyl)acetate (17.70 g, 107.0 mmol) was dissolved in TFA (red dark solution) and cooled to -10C. Then fuming HNO3 (4.76 mL, 112.0 mmol) was added dropwise. The reaction mixture was warmed to rt and stirred for 18 h. TFA was evaporated and the residue was neutralized with sat.NaHCO3 and solid NaHCO3. The aqueous layer was extracted with EtOAc. The organic layer was dried over Mg504, filtered and the solution was concentrated to dryness. The crude material was purified by silica gel column chromatography eluting with heptane and a gradient of heptane/EtOAc from [100:0] to [80:20] to afford the desired product (12.30 g, 55%) as yellow solid.1H NMR (300 MHz, CDCI3, d in oom): 3.55 (s, 2H), 3.71 (s, 3H), 6.04 (s, 2H), 6.79 (d, 1H, J=8.6Hz), 7.31 (dd, 1H, J=8.5Hz, J=1.8Hz), 8.02 (s, 1H). |
18% | N-((4-chloro-2-methylphenyl)(phenyl)methyl)-2-(2-(2-methylpyridin-3-yl)-lH-benzo[a) methyl 2-(4-amino-3-nitrophenyl)acetateFuming EtaNuOmicron3 (3 mL) was added dropwise to a solution of methyl 2-(4- aminophenyl)acetate (6.0 g, 36.32 mmol) in glacial AcOH (200 mL) at 0 C. The reaction mixture was allowed to warm to rt and then heated to 100 C for 6 h. The reaction mixture was cooled to rt, concentrated under reduced pressure and azeotroped with toluene. The reaction mixture was neutralized using 10% aq. NaOH and extracted with EtO Ac. The organic layer was washed with water and brine, dried over anhydrous Na2S04, filtered, and concentrated under reduced pressure. The resultant residue was purified by column chromatography (20% EtO Ac/petroleum ether) to afford the title compound (1.4 g, 18%) as an orange solid. TLC: 50% EtOAc/petroleum ether, Rf= 0.5. lH NMR (400 MHz, DMSO-d6) delta ppm 7.88 (d, J= 1.8 Hz, 1H), 7.41 (br s, 2H), 7.31 (dd, J= 8.9, 2.1 Hz, 1H), 6.97 (d, J= 8.5 Hz, 1H), 3.61 (m, 5H |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
89.5% | With palladium 10% on activated carbon; hydrogen In methanol at 25℃; for 3h; | 20.B Step B methyl 2- (3, 4-diaminophenyl) acetate To a solution of methyl 2- (4-amino-3-nitro-phenyl) acetate (500 mg, 2.38 mmol) in MeOH (5 mL) was added Pd/C (0.2 g, 10%purity) . The mixture was stirred at 25 under H2 (15 Psi) for 3 hrs. The mixture was filtered, and the filtrate was concentrated in vacuo and the residue was purified by flash chromatography (PE/EtOAc = 1/1) to give methyl 2- (3, 4-diaminophenyl) acetate (384 mg, 89.5%yield) as a brown oil. 1H NMR (400 MHz, DMSO-d6) δ 6.44 -6.37 (m, 2H) , 6.25 (d, J = 6.8, 1H) , 4.43 -4.35 (m, 4H) , 3.56 (s, 3H) , 3.34 (s, 2H) . |
89.5% | With palladium 10% on activated carbon; hydrogen In methanol at 25℃; for 3h; | 20.B Step B methyl 2- (3, 4-diaminophenyl) acetate To a solution of methyl 2- (4-amino-3-nitro-phenyl) acetate (500 mg, 2.38 mmol) in MeOH (5 mL) was added Pd/C (0.2 g, 10%purity) . The mixture was stirred at 25 under H2 (15 Psi) for 3 hrs. The mixture was filtered, and the filtrate was concentrated in vacuo and the residue was purified by flash chromatography (PE/EtOAc = 1/1) to give methyl 2- (3, 4-diaminophenyl) acetate (384 mg, 89.5%yield) as a brown oil. 1H NMR (400 MHz, DMSO-d6) δ 6.44 -6.37 (m, 2H) , 6.25 (d, J = 6.8, 1H) , 4.43 -4.35 (m, 4H) , 3.56 (s, 3H) , 3.34 (s, 2H) . |
73% | With palladium 10% on activated carbon; hydrogen In methanol for 4h; | 23.b b) methyl 2-(3,4-diaminophenyl)acetate Methyl 2-(4-amino-3-nitrophenyl)acetate (800 mg, 3.81 mmol) was hydrogenated using 10% Pd/C (120 mg) in MeOH (80 mL) under H2 balloon pressure for 4 h. The reaction mixture was filtered through Celite and washed through with MeOH. The solvent was concentrated to obtain the title compound (500 mg, 73%). TLC: 100% EtOAc, Rf= 0.3. lB NMR (300 MHz, DMSO-d6) δ ppm 6.41 - 6.37 (m, 2H), 6.24 - 6.21 (m, 1H), 4.43 - 4.35 (m, 4H), 3.55 (s, 5H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1.1: palladium 10% on activated carbon; hydrogen / methanol / 4 h 2.1: sodium hydrogensulfite / ethanol / 0.5 h / 20 °C 2.2: 4 h / 90 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
70% | In dichloromethane at 0 - 20℃; for 18h; | 1a.2 Step 2 to a solution of methyl 2-(4-amino-3-nitrophenyl)acetate Ex.lla (1.50 g, 7.14 mmol) in CH2CI2 (28 mL) and triethylamine (2.25 mL, 10.71 mmol) was added dropwise ethyl oxalylchloride (1.47 mL, 12.84 mmol) at 000. The reaction mixture was stirred at rt for 18 h. The reaction was quenched with brine. The aqueous layer was extracted with EtOAc. The organic layer was dried overMg504, filtered and the solution was concentrated to dryness. The crude material was purified by silica gel column chromatography eluting with heptane and a gradient of heptane/EtOAc from [100:0] to [70:30] to give methyl 2-(4- (ethyl carbamoylformyl)-3-n itrophenyl)acetate (1.55 g, 70%).- 1H NMR (300 MHz, DMSO-d6, din ppm): 1.33 (t, 3H, J=7.lHz), 3.61 (s, 3H), 3.65 (s, 2H), 4.34 (d, 2H, J=7.lHz), 7.70 (d, 1H, J=8.6Hz), 8.01 (d, 1H, J=8.4Hz), 8.08 (s, 1 H), 11.35 (s, 1 H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 4 steps 1: dichloromethane / 18 h / 0 - 20 °C 2: acetic acid; iron / 4 h 3: lithium hydroxide monohydrate; water / tetrahydrofuran / 5 h / 0 °C 4: dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / N,N-dimethyl-formamide / 2 h / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1: dichloromethane / 18 h / 0 - 20 °C 2: acetic acid; iron / 4 h 3: lithium hydroxide monohydrate; water / tetrahydrofuran / 5 h / 0 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: dichloromethane / 18 h / 0 - 20 °C 2: acetic acid; iron / 4 h |
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