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CAS No. : | 42122-44-1 | MDL No. : | MFCD13191989 |
Formula : | C10H7FO2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | RXGVUTFSIPIPDU-UHFFFAOYSA-N |
M.W : | 178.16 | Pubchem ID : | 11126821 |
Synonyms : |
|
Num. heavy atoms : | 13 |
Num. arom. heavy atoms : | 6 |
Fraction Csp3 : | 0.1 |
Num. rotatable bonds : | 1 |
Num. H-bond acceptors : | 3.0 |
Num. H-bond donors : | 0.0 |
Molar Refractivity : | 45.23 |
TPSA : | 26.3 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) : | -5.63 cm/s |
Log Po/w (iLOGP) : | 2.54 |
Log Po/w (XLOGP3) : | 2.47 |
Log Po/w (WLOGP) : | 1.85 |
Log Po/w (MLOGP) : | 2.61 |
Log Po/w (SILICOS-IT) : | 2.48 |
Consensus Log Po/w : | 2.39 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 1.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -2.78 |
Solubility : | 0.298 mg/ml ; 0.00167 mol/l |
Class : | Soluble |
Log S (Ali) : | -2.67 |
Solubility : | 0.384 mg/ml ; 0.00215 mol/l |
Class : | Soluble |
Log S (SILICOS-IT) : | -2.83 |
Solubility : | 0.261 mg/ml ; 0.00147 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 1.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 2.53 |
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 |
---|---|---|
91% | a (4-Fluoro-phenyl)-propynoic acid methyl ester The title compound was synthesised from 3-(4-fluoro-phenyl)-3-oxo-propionic acid methyl ester using the procedure described in Example 32, step (b), in 91% yield. 1H NMR (CDCl3) delta7.59 (m, 2H), 7.08 (m, 2H), 3.84 (s, 3H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81% | To a solution of l-ethynyl-4-fluorobenzene (2 g, 16.65 mmol) in THF (15 mL) at -78 C was added n-butyllithium (7.99 mL, 19.98 mmol) and the resulting solution was stirred at -78 C for 30 min. Methyl carbonochloridate (1.89 g, 19.98 mmol) in THF (5 mL) was then added and stirring was continued at -78 C for 30 min. and then slowly warmed to room temperature and stirred for 12 h. The reaction mixture was quenched with ammonium chloride solution and the aqueous layer was extracted with ethyl acetate (3 x 50 mL). The combined organic layer was and washed with brine, dried over Na2S04, filtered and concentrated. The residue was purified silica gel chromatography (40 g REDISEP column, eluting with 5% EtOAc in hexane). The collected fractions were concentrated together to afford Intermediate 59A (2.4 g, 81%) as a yellow solid. 1H NMR (300 MHz, chloroform-d) delta ppm 7.57 - 7.65 (m, 2H), 7.05 - 7.15 (m, 2H), 3.86 (s, 3H) | |
66% | A solution of 4-fluorophenylacetylene (2.86 mL, 3.00 g, 24.97 mmol) in tetrahydrofuran at - 78C was treated with a solution of «-butyllithium in hexanes (2.29 M, 12.0 mL, 27.5 mmol) followed by stirring at -78 C for 45 minutes. The solution was then treated rapidly with methyl chloroformate (2.12 mL, 2.60 g, 27.5 mmol) followed by stirring at -78 C for 30 minutes and warming to room temperature for 18 hours. The mixture was treated with water and concentrated in vacuo to remove tetrahydrofuran. The residue was dissolved in ethyl acetate and washed with water and saturated sodium chloride solution. Drying ( a2S04) and concentration in vacuo afforded a yellow solid, which was chromatographed over a 340 g silica gel cartridge, eluting with 15-50% dichloromethane in hexanes. These procedures afforded the product (2.95 g, 66%) as an off-white fluffy solid. | |
65.5% | To a solution of 1-ethynyl-4-fluorobenzene (22.5 g, 187.3 mmol, 21.4 mL, 1.0 eq) in dry THF (400 mL) was added n-BuLi (2.5 M, 88 mL, 1.17 eq) dropwise at -70 C. under N2 atmosphere. After stirred for 1 hr at -70 C., methyl carbonochloridate (20 g, 211 mmol, 16 mL, 1.13 eq) was added dropwise and the mixture was stirred at -70 C. for 0.5 hr, then warmed to 15 C. for 1.5 hrs. The mixture was cooled to -5 C., quenched with sat.NH4Cl aq. (200 mL) and extracted with EtOAc (100 mL*3). The combined organic layers were dried over Na2SO4, and concentrated to dryness. The residue solid was washed with EtOAc/petroleum ether (1:80, 100 mL*2) and filtered. The filter cake was dried in vacuum to give methyl 3-(4-fluorophenyl)propiolate (23 g, 122 mmol, 65.5% yield, 95% purity) as a white solid. 1H NMR (400 MHz, CHLOROFORM-d) d=7.60 (dd, J=5.6, 8.4 Hz, 2H), 7.09 (t, J=8.6 Hz, 2H), 3.85 (s, 3H) |
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