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CAS No. : | 1113049-61-8 | MDL No. : | MFCD16159183 |
Formula : | C8H8FNO3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | FSUONMUAAVMIJC-UHFFFAOYSA-N |
M.W : | 185.15 | Pubchem ID : | 56924399 |
Synonyms : |
|
Num. heavy atoms : | 13 |
Num. arom. heavy atoms : | 6 |
Fraction Csp3 : | 0.12 |
Num. rotatable bonds : | 2 |
Num. H-bond acceptors : | 4.0 |
Num. H-bond donors : | 2.0 |
Molar Refractivity : | 44.11 |
TPSA : | 72.55 Ų |
GI absorption : | High |
BBB permeant : | No |
P-gp substrate : | No |
CYP1A2 inhibitor : | No |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -6.44 cm/s |
Log Po/w (iLOGP) : | 1.34 |
Log Po/w (XLOGP3) : | 1.39 |
Log Po/w (WLOGP) : | 1.33 |
Log Po/w (MLOGP) : | 1.17 |
Log Po/w (SILICOS-IT) : | 0.94 |
Consensus Log Po/w : | 1.23 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 1.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -2.07 |
Solubility : | 1.56 mg/ml ; 0.00845 mol/l |
Class : | Soluble |
Log S (Ali) : | -2.52 |
Solubility : | 0.563 mg/ml ; 0.00304 mol/l |
Class : | Soluble |
Log S (SILICOS-IT) : | -1.82 |
Solubility : | 2.8 mg/ml ; 0.0151 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 2.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 1.52 |
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501 | UN#: | |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | |
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 |
---|---|---|
With potassium carbonate; In dimethyl sulfoxide; at 90.0℃; for 2h; | To a mixture of phenol 16a3 (740 mg, 4.0 mmol) and 2-fluoro-3- trifluoromethylpyridine (990 mg, 6.0 mmol) in anhydrous DMSO (8 ml_) is added powdered potassium carbonate (1.7 g, 12 mmol). The mixture is stirred at 900C for about 2 hours. The mixture is allowed to cool to ambient temperature then is taken in EtOAc (50 mL) and washed with 10% aqueous citric acid, water, saturated aqueous NaHCO3 and brine. The organic phase is dried with MgSO4 and filtered, then concentrated under reduced pressure. The crude residue is diluted in EtOAc and HCI (1 N solution in ether, 5 mL, 5.0 mmol) is added. Solid HCI salt 20a1 is collected by filtration and washed with ether/hexanes (1 :2 mixture). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With hydrogenchloride; In diethyl ether; dichloromethane; at 20.0℃; for 0.0833333h; | To a mixture of aniline 16a3 (5.00 g, 27 mmol) and DCM (200 mL) is added HCI (1.0 M in ether, 27 mL, 27 mmol). After stirring for 5 minutes at ambient temperature, 2- methoxypropene (3.8 mL, 40 mmol) is added followed by sodium triacetoxyborohydride (11.4 g, 54 mmol) and the mixture is stirred for about 2 hours. The reaction mixture is diluted in EtOAc and washed with saturated aqueous NaHCO3 and brine. The organic phase is dried with MgSO4 then filtered. Silica gel is added to the solution then the solvent is removed under reduced pressure. The silica gel dry packed compound is purified by combiflash (5 to 30% EtOAc/Hex gradient) to isolate i-Pr-aniline 17a1. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With hydrogen;10 % Pd(OH)2/C; In methanol; ethyl acetate; at 20.0℃; under 1551.49 Torr; | Benzylether 1a3 (56.7g, 186 mmol) is combined with MeOH (300 mL) and EtOAc (300 mL) in a Parr Bomb. The solution is degassed with Ar then Pearlman's catalyst (6 g) is added and the bomb charged with 30 psi of H2 and is stirred at RT overnight. The mixture is filtered and the solvent is removed in vacuo. The residue is triturated with hexane to afford phenol 16a3. | |
With hydrogen;palladium dihydroxide; In methanol; ethyl acetate; at 20.0℃; under 1551.49 Torr; | Step 3Benzylether 4a3 (56.7g, 186 mmol) is combined with MeOH (300 mL) and EtOAc (300 mL) in a Parr Bomb. The solution is degassed with Ar then Pearlman's catalyst (6 g) is added. The bomb is charged with 30 psi of H2 and stirred at RT overnight. The mixture is filtered and the solvent removed in vacuo The residue is triturated with hexane to afford phenol 4a4. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Step 4:Reference: Abdel-Magid, A. F., Carson, K. G., Harris, B. D , Maryanoff, C A.; Shah, R. D. J Org Chem. 1996, 61, 3849To a mixture of phenol 4a4 (5 00 g, 27 mmol) and DCM (200 mL) is added HCI (1.0 M in ether, 27 mL, 27 mmol). After stirring for 5 minutes at ambient temperature, 2- methoxypropene (3.8 mL, 40 mmol) is added followed by NaHB(OAc)3 (11.4 g, 54 mmol). The mixture is stirred for 2 hours. The reaction mixture is diluted in EtOAc and washed with saturated aqueous NaHCO3 and brine. The organic phase is dried with MgSO4 then filtered. Silica gel is added to the solution then the solvent is removed under reduced pressure. The silica gel dry packed compound is purified by combiflash (5 to 30% EtOAc/Hex gradient) to isolate /-Pr-aniline 4a5. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85% | With 2.5 wt% Pd/C; hydrogen; In methanol; at 20.0℃; under 5171.62 Torr; | Palladium on carbon (2.5 wt. %, wet, 8.5 g, 0.005 eq) was charged into a 1 L Parr bomb. Then, methyl 4-fluoro-5-hydroxy-2-nitrobenzoate, 62 g, 0.29 mol, 1 eq) and MeOH (300 mL) were charged. The bomb was sealed, and pressurized/vented three times with hydrogen, and pressured with 100 psi hydrogen. The reaction mixture was stirred, until the hydrogen pressure was not dropping. The bomb was opened, and an HPLC sample showed that the reaction was complete. The mixture was diluted with 400 ml of THF and filtered through a Celite pad. The solution was concentrated under vacuum and solvent was switched to MeOH. To the thick suspension in MeOH, water (150 mL) was added in about 30 min. The slurry was filtered. The desired product, methyl 2-amino-4-fluoro-5-hydroxybenzoate, was obtained as off-white solid after drying under vacuum (45.5 g, 85% yield). NMR (DMSO-d6, 400 MHz) delta 9.05 (s, 1H), 7.28 (d, J=10.0 Hz, 1H), 6.54 (d, J=13.4 Hz, 1H), 6.30 (s, 2H), 3.74 (s, 3H). 13C NMR (DMSO-d6, 100 MHz) delta 167.0, 157.0, 154.5, 146.2, 146.1, 134.5, 134.4, 118.2, 104.7, 103.3, 51.4. |
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