Purity | Size | Price | VIP Price | USA Stock *0-1 Day | Global Stock *5-7 Days | Quantity | |||||
{[ item.p_purity ]} | {[ item.pr_size ]} |
{[ getRatePrice(item.pr_usd, 1,1) ]} {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate) ]} |
{[ getRatePrice(item.pr_usd, 1,1) ]} | {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate) ]} {[ getRatePrice(item.pr_usd,1,item.mem_rate) ]} | {[ item.pr_usastock ]} | Inquiry - | {[ item.pr_chinastock ]} | Inquiry - |
* Storage: {[proInfo.prStorage]}
CAS No. : | 1270294-05-7 | MDL No. : | MFCD09763634 |
Formula : | C9H8F2O2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | HGTYMLFMXKYIQW-SSDOTTSWSA-N |
M.W : | 186.16 | Pubchem ID : | 45075740 |
Synonyms : |
|
Num. heavy atoms : | 13 |
Num. arom. heavy atoms : | 6 |
Fraction Csp3 : | 0.33 |
Num. rotatable bonds : | 0 |
Num. H-bond acceptors : | 4.0 |
Num. H-bond donors : | 1.0 |
Molar Refractivity : | 41.67 |
TPSA : | 29.46 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) : | -6.46 cm/s |
Log Po/w (iLOGP) : | 2.08 |
Log Po/w (XLOGP3) : | 1.37 |
Log Po/w (WLOGP) : | 2.3 |
Log Po/w (MLOGP) : | 1.98 |
Log Po/w (SILICOS-IT) : | 2.63 |
Consensus Log Po/w : | 2.07 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 1.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -2.2 |
Solubility : | 1.18 mg/ml ; 0.00633 mol/l |
Class : | Soluble |
Log S (Ali) : | -1.59 |
Solubility : | 4.77 mg/ml ; 0.0256 mol/l |
Class : | Very soluble |
Log S (SILICOS-IT) : | -2.72 |
Solubility : | 0.353 mg/ml ; 0.0019 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 0.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 2.58 |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
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 |
---|---|---|
66.5% | With dimethylsulfide borane complex; (S)-3,3-diphenyl-1-methyltetrahydro-1H,3H-pyrrolo[1,2-c][1,3,2]oxazaborol In tetrahydrofuran; toluene at 20℃; for 5.5h; Inert atmosphere; | 2 Preparation of (R)-5,7-difluorochroman-4-ol (5) Take a 1L three-necked flask, add anhydrous THF (66mL) and S-Me-CBS (1mol/L toluene solution, 9mL, 9mmol), protect with argon, and inject borane dimethyl sulfide complex at room temperature (10mol/L, 9.9mL, 99mmol). Dissolve 5,7-difluorochroman-4-one (16.6 g, 90 mmol) in anhydrous tetrahydrofuran (166 mL) and slowly drip into the above system. The entire dripping process lasted 5.5 hours. After dripping, let it stand overnight. The reaction solution was slowly poured into methanol cooled in an ice-water bath to generate a large number of bubbles, stirred until no obvious bubbles were generated, and concentrated to remove the solvent. Add 100 mL of ethyl acetate to dissolve, wash the organic phase with water (50 mL, 30 mL) and brine (20 mL) successively, dry over anhydrous sodium sulfate, filter, and concentrate to obtain an oil, which is placed at room temperature as a yellow solid. The chiral purity measured by chiral HPLC was 93.6%ee (OZ-H column, n-hexane/isopropanol=95/5, flow rate=1mL/min, detection wavelength 220nm). The above solid was heated and dissolved in a mixed solvent consisting of n-hexane and ethyl acetate (n-hexane/ethyl acetate=17:1), and 11.1 g of needle crystals were obtained by recrystallization, with a yield of 66.5%. [α] D20 = +141.9 (c = 1, MeOH). The chiral purity measured by chiral HPLC is >99.9%ee (OZ-H column, n-hexane/isopropanol=95/5, flow rate=1 mL/min, detection wavelength 220nm). |
Multi-step reaction with 3 steps 1: sodium tetrahydridoborate; methanol / 1 h / 0 °C 2: Novozym 435 / 2-methoxy-2-methylpropane / 3 h / 20 °C 3: sodium tetrahydridoborate; methanol; lithium hydroxide monohydrate / 1 h / 20 °C | ||
Multi-step reaction with 4 steps 1: sodium tetrahydridoborate; methanol / 1 h / 0 °C 2: Novozym 435 / 2-methoxy-2-methylpropane / 3 h / 20 °C 3: triphenylphosphine; di-isopropyl azodicarboxylate / tetrahydrofuran / 2 h / 0 - 20 °C / Inert atmosphere 4: sodium tetrahydridoborate; methanol; lithium hydroxide monohydrate / 1 h / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: triphenylphosphine; di-isopropyl azodicarboxylate / tetrahydrofuran / 5 h / Inert atmosphere; Cooling with ice 2: palladium 10% on activated carbon; hydrogen / methanol; tetrahydrofuran; water / 3 h / 1292.9 Torr |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1: triphenylphosphine; di-isopropyl azodicarboxylate / tetrahydrofuran / 5 h / Inert atmosphere; Cooling with ice 2: palladium 10% on activated carbon; hydrogen / methanol; tetrahydrofuran; water / 3 h / 1292.9 Torr 3: sodium acetate / dichloromethane / 1 h | ||
Multi-step reaction with 3 steps 1: triphenylphosphine; di-isopropyl azodicarboxylate / tetrahydrofuran / 5 h / Inert atmosphere; Cooling with ice 2: palladium 10% on activated carbon; hydrogen / methanol; tetrahydrofuran; water / 3 h / 1292.9 Torr 3: sodium acetate / dichloromethane / 24 h / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 4 steps 1.1: triphenylphosphine; di-isopropyl azodicarboxylate / tetrahydrofuran / 5 h / Inert atmosphere; Cooling with ice 2.1: palladium 10% on activated carbon; hydrogen / methanol; tetrahydrofuran; water / 3 h / 1292.9 Torr 3.1: sodium acetate / dichloromethane / 1 h 4.1: N-chloro-succinimide / acetonitrile / 0.58 h / 5 °C 4.2: 2 h / 20 °C | ||
Multi-step reaction with 4 steps 1.1: triphenylphosphine; di-isopropyl azodicarboxylate / tetrahydrofuran / 5 h / Inert atmosphere; Cooling with ice 2.1: palladium 10% on activated carbon; hydrogen / methanol; tetrahydrofuran; water / 3 h / 1292.9 Torr 3.1: sodium acetate / dichloromethane / 24 h / 20 °C 4.1: N-chloro-succinimide / acetonitrile / 0.58 h / 5 °C 4.2: 2 h / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
89.7% | With di-isopropyl azodicarboxylate; triphenylphosphine In tetrahydrofuran for 5h; Inert atmosphere; Cooling with ice; | 8-9 (S)-3-((5,7-Difluorochroman-4-yl)oxy)-N,N-dimethyl-4-nitrobenzamide (6) Compound 4 (210mg, 1mmol), compound 5 (186mg, 1mmol), triphenylphosphine (314 mg, 1.2mmol) were dissolved in anhydrous THF (5mL), protected by argon, cooled in an ice water bath, and then DIAD ( A mixed solution consisting of 236 μL, 1.2 mmol) and anhydrous THF (0.3 mL) was dripped and stirred for 5 hours. Concentrate and purify by silica gel column chromatography (0-2% ethyl acetate in dichloromethane solution). Compound 6 was obtained, with a total of 339 mg of off-white solid, with a yield of 89.7%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92.4% | With methanol; sodium tetrahydridoborate; lithium hydroxide monohydrate at 20℃; for 1h; | 1.S4 ((R)-5,7-difluorochroman-4-yl)4-nitrobenzoate (A-5) (2.26 g, 6.7 mmol) was added to 20 mL of methanol, and sodium hydroxide ( 0.6g, 15mmol), water 10mL, stirred at room temperature for 1h, and monitored the reaction progress by thin-layer chromatography until the reaction was complete; concentrated and evaporated most of the methanol, adjusted the pH to 7 with 1N hydrochloric acid, precipitated a solid, suction filtered, washed with water, 50 Drying at gave (R)-5,7-difluorochroman-4-ol (III) 1.16 g of a near-white solid with a yield of 92.4%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: Novozym 435 / 2-methoxy-2-methylpropane / 3 h / 20 °C 2: sodium tetrahydridoborate; methanol; lithium hydroxide monohydrate / 1 h / 20 °C | ||
Multi-step reaction with 3 steps 1: Novozym 435 / 2-methoxy-2-methylpropane / 3 h / 20 °C 2: triphenylphosphine; di-isopropyl azodicarboxylate / tetrahydrofuran / 2 h / 0 - 20 °C / Inert atmosphere 3: sodium tetrahydridoborate; methanol; lithium hydroxide monohydrate / 1 h / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
93.4% | With methanol; sodium tetrahydridoborate; lithium hydroxide monohydrate at 20℃; for 1h; | 1.S3 S3: add (R)-5,7-difluorochroman-4-ol acetate (A-3) (1.8 g, 7.9 mmol) prepared in step S2 into 20 mL of methanol, add sodium hydroxide (0.7 g, 17.5 mmol), 10 mL of water, stirred at room temperature for 1 h, and monitored the reaction progress by thin-layer chromatography until the reaction was complete; concentrated and evaporated most of the methanol, adjusted the pH to 7 with 1N hydrochloric acid, and precipitated a solid, suction filtered, washed with water, 50 Drying at gave (R)-5,7-difluorochroman-4-ol (III) 1.37 g of a near-white solid with a yield of 93.4%. |