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CAS No. : | 158937-25-8 | MDL No. : | MFCD07644475 |
Formula : | C17H21BO3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | DBDYXLZXTNHAFI-UHFFFAOYSA-N |
M.W : | 284.16 | Pubchem ID : | 11358071 |
Synonyms : |
|
Num. heavy atoms : | 21 |
Num. arom. heavy atoms : | 12 |
Fraction Csp3 : | 0.29 |
Num. rotatable bonds : | 7 |
Num. H-bond acceptors : | 3.0 |
Num. H-bond donors : | 2.0 |
Molar Refractivity : | 87.42 |
TPSA : | 49.69 Ų |
GI absorption : | High |
BBB permeant : | Yes |
P-gp substrate : | No |
CYP1A2 inhibitor : | No |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | Yes |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -5.04 cm/s |
Log Po/w (iLOGP) : | 0.0 |
Log Po/w (XLOGP3) : | 4.22 |
Log Po/w (WLOGP) : | 2.6 |
Log Po/w (MLOGP) : | 2.55 |
Log Po/w (SILICOS-IT) : | 2.4 |
Consensus Log Po/w : | 2.35 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 0.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -4.22 |
Solubility : | 0.0171 mg/ml ; 0.0000601 mol/l |
Class : | Moderately soluble |
Log S (Ali) : | -4.97 |
Solubility : | 0.00302 mg/ml ; 0.0000106 mol/l |
Class : | Moderately soluble |
Log S (SILICOS-IT) : | -5.55 |
Solubility : | 0.000805 mg/ml ; 0.00000283 mol/l |
Class : | Moderately soluble |
PAINS : | 0.0 alert |
Brenk : | 1.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 2.44 |
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 |
---|---|---|
94.4% | Stage #1: With n-butyllithium In tert-butyl methyl ether at -20℃; for 2 h; Inert atmosphere Stage #2: With Triisopropyl borate In tetrahydrofuran; tert-butyl methyl ether at -60 - 20℃; Stage #3: With hydrogenchloride; water In tetrahydrofuran; tert-butyl methyl ether at 20℃; for 0.166667 h; |
General procedure: n-BuLi (2.5 M, 7.4 mL, 18 mmol) was added dropwise to a solution of compound 14c (4.5 g, 13 mmol) in MTBE (50 mL) at -20 °C under nitrogen atmosphere. After stirring for 2 h, the reaction mixture was cooled to -60 °C and was added THF (6 mL). Then, a solution of (i-PrO)3B (6.1 mL, 26 mmol) in MTBE (8 mL) was added dropwise to the resulting mixture and was stirred for 1 h. The reaction mixture was allowed to warm to room temperature, stirred overnight and treated with 2 M HCl (50 mL) for 10 min. The organic layer was separated and the solvent was evaporated under reduced pressure. The residue was added hexane (40 mL) and stirred for 10 min. After filtration, the filter cake was washed by hexane-MTBE (8: 1) to give 15c (3.7 g, yield 91.4percent) as white solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
91% | Stage #1: With n-butyllithium In tetrahydrofuran; hexane at -78 - -65℃; for 2.25 h; Stage #2: at -78 - 20℃; for 1.16667 h; Stage #3: With hydrogenchloride; water In tetrahydrofuran; hexane |
31,9 g (0,1 mol) 4-Brom-4'-n-pentoxy[1,1']biphenyl werden unter Stickstoffatmosphaere in 640 ml Tetrahydrofuran geloest, auf -78°C gekuehlt und innerhalb von 2 Stunden tropfenweise mit 67 ml (0,11 mol) einer 15percentigen Loesung von n-Butyilithium in Hexan versetzt. Dabei wird die Innentemperatur in einem Bereich von -78°C bis -65°C gehalten. Nach beendeter Zugabe wird die dicke, milchige Suspension weitere 15 Minuten bei -78°C geruehrt und im Anschluss daran mit 25,5 ml (0,11 mol) Triisopropylborat innerhalb 15 Minuten bei -78°C tropfenweise versetzt. Nach beendeter Boratzugabe erhaelt man eine klare Loesung, welche 15 Minuten bei -78°C nachgeruehrt wird. Im Anschluss daran wird das Kaeltebad entfernt und nach 40 Minuten die Loesung mit 100 ml 2N Salzsaeure auf pH 2 gestellt. Die Phasen werden getrennt, die organische Phase mit Wasser und gesaettigter Kochsalzloesung gewaschen und im Anschluss daran werden die Loesungsmittel unter Zusatz von 200 ml Wasser destillativ entfernt. Der ausgefallene Feststoff wird abfiltriert und getrocknet. Man erhaelt 25,8 g (91 percent) 4'-n-Pentoxy[1,1']biphenyl-4-boronsaeure vom Schmelzpunkt 148-150°C. |
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