Structure of 3,4-Dichlorophenylboronic acid
CAS No.: 151169-75-4
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The BI-3802 was designed by Boehringer Ingelheim and could be obtained free of charge through the Boehringer Ingelheim open innovation portal opnMe.com, associated with its negative control.
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CAS No. : | 151169-75-4 |
Formula : | C6H5BCl2O2 |
M.W : | 190.82 |
SMILES Code : | C1=C(C(=CC(=C1)B(O)O)Cl)Cl |
MDL No. : | MFCD01074646 |
InChI Key : | JKIGHOARKAIPJI-UHFFFAOYSA-N |
Pubchem ID : | 2734330 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 11 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.0 |
Num. rotatable bonds | 1 |
Num. H-bond acceptors | 2.0 |
Num. H-bond donors | 2.0 |
Molar Refractivity | 46.29 |
TPSA ? Topological Polar Surface Area: Calculated from |
40.46 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
0.0 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
2.08 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
0.67 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
1.48 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
0.57 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
0.96 |
Log S (ESOL):? ESOL: Topological method implemented from |
-2.67 |
Solubility | 0.407 mg/ml ; 0.00213 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-2.56 |
Solubility | 0.526 mg/ml ; 0.00276 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-2.52 |
Solubility | 0.572 mg/ml ; 0.003 mol/l |
Class? Solubility class: Log S scale |
Soluble |
GI absorption? Gatrointestinal absorption: according to the white of the BOILED-Egg |
High |
BBB permeant? BBB permeation: according to the yolk of the BOILED-Egg |
Yes |
P-gp substrate? P-glycoprotein substrate: SVM model built on 1033 molecules (training set) |
No |
CYP1A2 inhibitor? Cytochrome P450 1A2 inhibitor: SVM model built on 9145 molecules (training set) |
No |
CYP2C19 inhibitor? Cytochrome P450 2C19 inhibitor: SVM model built on 9272 molecules (training set) |
No |
CYP2C9 inhibitor? Cytochrome P450 2C9 inhibitor: SVM model built on 5940 molecules (training set) |
No |
CYP2D6 inhibitor? Cytochrome P450 2D6 inhibitor: SVM model built on 3664 molecules (training set) |
No |
CYP3A4 inhibitor? Cytochrome P450 3A4 inhibitor: SVM model built on 7518 molecules (training set) |
No |
Log Kp (skin permeation)? Skin permeation: QSPR model implemented from |
-5.99 cm/s |
Lipinski? Lipinski (Pfizer) filter: implemented from |
0.0 |
Ghose? Ghose filter: implemented from |
None |
Veber? Veber (GSK) filter: implemented from |
0.0 |
Egan? Egan (Pharmacia) filter: implemented from |
0.0 |
Muegge? Muegge (Bayer) filter: implemented from |
1.0 |
Bioavailability Score? Abbott Bioavailability Score: Probability of F > 10% in rat |
0.55 |
PAINS? Pan Assay Interference Structures: implemented from |
0.0 alert |
Brenk? Structural Alert: implemented from |
1.0 alert: heavy_metal |
Leadlikeness? Leadlikeness: implemented from |
No; 1 violation:MW<1.0 |
Synthetic accessibility? Synthetic accessibility score: from 1 (very easy) to 10 (very difficult) |
1.86 |
* 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 |
---|---|---|
sodium carbonate; tetrakis(triphenylphosphine)palladium (0); In toluene; | Step (a) Preparation of 4-(3',4'-Dichloro-biphenyl-4-yl)-4-oxo-butyric acid, methyl ester In a manner similar to Example 12, Step (b), (3,4-dichloro-phenyl)boronic acid (1.0569 g, 0.005539 mol) was allowed to react with 4-(4-bromo-phenyl)-4-oxo-butyric acid, methyl ester (1.3636 g, 0.005019 mol) in the presence of tetrakis(triphenylphosphine)palladium(0) (0.1054 g, 0.0000912 mol) and 2.0 M aqueous sodium carbonate (5.5 mL, 0.011 mol) in toluene (11 mL) to give, after chromatography on silica gel (270 g, 230-400 mesh), eluding with hexanes-acetone (7:1) 1.432 g of 4-(3',4'-dichloro-biphenyl-4-yl)-4-oxo-butyric acid, methyl ester as a white solid; mp 120-121 C. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
65% | With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; sodium acetate; In 1,4-dioxane; water; at 100.0℃; for 16.0h;Inert atmosphere; | (1207) To the iodo compound 389 (30 mg, 0.16 mmol), in dioxanewater (31 ml), 3,4-dichloro phenyl boronic acid (37 mg, 0.19 mmol), sodium acetate (62 mg, 0.76 mmol) and PdCl2(dppf) (23 mg, 0.03 mmol) were added. Then the reaction mixture was heated to 100 C. for 16 h. Then reaction mixture was cooled and diluted with ethyl acetate. Organic layer was separated and washed with water, brine and dried. Crude residue was column chromatographed to yield 390 (3-(3,4-dichlorophenyl)-6-(trifluoromethyl)-1H-indazole) in 65% yield. 1H NMR (CDCl3): 10.41 (br s, 1H), 8.1 (m, 2H), 7.68-7.72 (m, 2H), 7.60 (m, 1H), 7.53 (d, 1H). Mass spectrum (ESI+): m/z=331 [M+1]. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
520 mg | With tetrakis(triphenylphosphine) palladium(0); sodium carbonate; In tetrahydrofuran; water; at 100℃; for 1h;Inert atmosphere; Microwave irradiation; | The compound of Reference Example 4 (600 mg), 3,4-dichlorophenylboronic acid (635 mg), tetrakis (triphenylphosphine) palladium (175 mg) and sodium carbonate(803 mg) in tetrahydrofuran / water mixed solution (10.1 mL / 5 mL)Were stirred at 100 C. for 1 hour under a nitrogen atmosphere using a microwave reactor. After cooling to room temperature, water was added and the mixture was extracted with ethyl acetate. The organic layer was washed with a saturated aqueous sodium chloride solution, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (n-hexane / ethyl acetate) to give the title compound (520 mg) as a solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
29% | With trisodium tris(3-sulfophenyl)phosphine; palladium diacetate; sodium carbonate; In water; acetonitrile; at 100℃;Inert atmosphere; | General procedure: 31 (1 eq.), boronic acid (1.5 eq.) or pinacol ester [for compound14 (1.5 eq.)], Na2CO3 (9 eq.), Pd(OAc)2 (0.05 eq.) and TPPTS (0.15 eq.)were added to a 10mL round-bottom flask, equipped with a stir bar.Next, the flask was evacuated and refilled with argon. This procedure was repeated three times in total. Next, degassed MeCN(2 mL/mmol SM) and H2O (4 mL/mmol SM) were added to the solids under argon. After 5 min of stirring, the mixture was heatedto 100 C in a pre-heated oil bath. When the starting material was fully consumed (usually 1e3 h), the mixture was cooled to ambient temperature, and neutralized (pH ~ 7) with 0.5M aq. HCl. Themixture was evaporated till dryness, resuspended in MeOH and evaporated (three times). Next, the mixture was adsorbed onto Celite (fromMeOH) and eluted over a short silica pad (~5 cm) with 20% MeOH/DCM. The liquid was evaporated in vacuo and purified by column chromatography. |
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