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Chemical Structure| 20443-98-5 Chemical Structure| 20443-98-5
Chemical Structure| 20443-98-5

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CAS No.: 20443-98-5

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Product Details of [ 20443-98-5 ]

CAS No. :20443-98-5
Formula : C7H5BrCl2
M.W : 239.92
SMILES Code : ClC1=C(C(Cl)=CC=C1)CBr
MDL No. :MFCD00000577
InChI Key :PDFGFQUSSYSWNI-UHFFFAOYSA-N
Pubchem ID :30159

Safety of [ 20443-98-5 ]

GHS Pictogram:
Signal Word:Danger
Hazard Statements:H314-H335
Precautionary Statements:P260-P271-P280-P301+P330+P331-P303+P361+P353-P305+P351+P338
Class:8
UN#:3261
Packing Group:Ⅱ

Calculated chemistry of [ 20443-98-5 ] Show Less

Physicochemical Properties

Num. heavy atoms 10
Num. arom. heavy atoms 6
Fraction Csp3 0.14
Num. rotatable bonds 1
Num. H-bond acceptors 0.0
Num. H-bond donors 0.0
Molar Refractivity 49.3
TPSA ?

Topological Polar Surface Area: Calculated from
Ertl P. et al. 2000 J. Med. Chem.

0.0 ?2

Lipophilicity

Log Po/w (iLOGP)?

iLOGP: in-house physics-based method implemented from
Daina A et al. 2014 J. Chem. Inf. Model.

2.45
Log Po/w (XLOGP3)?

XLOGP3: Atomistic and knowledge-based method calculated by
XLOGP program, version 3.2.2, courtesy of CCBG, Shanghai Institute of Organic Chemistry

3.46
Log Po/w (WLOGP)?

WLOGP: Atomistic method implemented from
Wildman SA and Crippen GM. 1999 J. Chem. Inf. Model.

3.74
Log Po/w (MLOGP)?

MLOGP: Topological method implemented from
Moriguchi I. et al. 1992 Chem. Pharm. Bull.
Moriguchi I. et al. 1994 Chem. Pharm. Bull.
Lipinski PA. et al. 2001 Adv. Drug. Deliv. Rev.

4.25
Log Po/w (SILICOS-IT)?

SILICOS-IT: Hybrid fragmental/topological method calculated by
FILTER-IT program, version 1.0.2, courtesy of SILICOS-IT, http://www.silicos-it.com

4.11
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

3.6

Water Solubility

Log S (ESOL):?

ESOL: Topological method implemented from
Delaney JS. 2004 J. Chem. Inf. Model.

-3.89
Solubility 0.0312 mg/ml ; 0.00013 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Soluble
Log S (Ali)?

Ali: Topological method implemented from
Ali J. et al. 2012 J. Chem. Inf. Model.

-3.14
Solubility 0.173 mg/ml ; 0.000722 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Soluble
Log S (SILICOS-IT)?

SILICOS-IT: Fragmental method calculated by
FILTER-IT program, version 1.0.2, courtesy of SILICOS-IT, http://www.silicos-it.com

-4.89
Solubility 0.00307 mg/ml ; 0.0000128 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Moderately soluble

Pharmacokinetics

GI absorption?

Gatrointestinal absorption: according to the white of the BOILED-Egg

 Low
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)
and tested on 415 molecules (test set)
10-fold CV: ACC=0.72 / AUC=0.77
External: ACC=0.88 / AUC=0.94

 No
CYP1A2 inhibitor?

Cytochrome P450 1A2 inhibitor: SVM model built on 9145 molecules (training set)
and tested on 3000 molecules (test set)
10-fold CV: ACC=0.83 / AUC=0.90
External: ACC=0.84 / AUC=0.91

 Yes
CYP2C19 inhibitor?

Cytochrome P450 2C19 inhibitor: SVM model built on 9272 molecules (training set)
and tested on 3000 molecules (test set)
10-fold CV: ACC=0.80 / AUC=0.86
External: ACC=0.80 / AUC=0.87

 No
CYP2C9 inhibitor?

Cytochrome P450 2C9 inhibitor: SVM model built on 5940 molecules (training set)
and tested on 2075 molecules (test set)
10-fold CV: ACC=0.78 / AUC=0.85
External: ACC=0.71 / AUC=0.81

 Yes
CYP2D6 inhibitor?

Cytochrome P450 2D6 inhibitor: SVM model built on 3664 molecules (training set)
and tested on 1068 molecules (test set)
10-fold CV: ACC=0.79 / AUC=0.85
External: ACC=0.81 / AUC=0.87

 Yes
CYP3A4 inhibitor?

Cytochrome P450 3A4 inhibitor: SVM model built on 7518 molecules (training set)
and tested on 2579 molecules (test set)
10-fold CV: ACC=0.77 / AUC=0.85
External: ACC=0.78 / AUC=0.86

 No
Log Kp (skin permeation)?

Skin permeation: QSPR model implemented from
Potts RO and Guy RH. 1992 Pharm. Res.

-5.31 cm/s

Druglikeness

Lipinski?

Lipinski (Pfizer) filter: implemented from
Lipinski CA. et al. 2001 Adv. Drug Deliv. Rev.
MW ≤ 500
MLOGP ≤ 4.15
N or O ≤ 10
NH or OH ≤ 5

 1.0
Ghose?

Ghose filter: implemented from
Ghose AK. et al. 1999 J. Comb. Chem.
160 ≤ MW ≤ 480
-0.4 ≤ WLOGP ≤ 5.6
40 ≤ MR ≤ 130
20 ≤ atoms ≤ 70

 None
Veber?

Veber (GSK) filter: implemented from
Veber DF. et al. 2002 J. Med. Chem.
Rotatable bonds ≤ 10
TPSA ≤ 140

 0.0
Egan?

Egan (Pharmacia) filter: implemented from
Egan WJ. et al. 2000 J. Med. Chem.
WLOGP ≤ 5.88
TPSA ≤ 131.6

 0.0
Muegge?

Muegge (Bayer) filter: implemented from
Muegge I. et al. 2001 J. Med. Chem.
200 ≤ MW ≤ 600
-2 ≤ XLOGP ≤ 5
TPSA ≤ 150
Num. rings ≤ 7
Num. carbon > 4
Num. heteroatoms > 1
Num. rotatable bonds ≤ 15
H-bond acc. ≤ 10
H-bond don. ≤ 5

 1.0
Bioavailability Score?

Abbott Bioavailability Score: Probability of F > 10% in rat
implemented from
Martin YC. 2005 J. Med. Chem.

0.55

Medicinal Chemistry

PAINS?

Pan Assay Interference Structures: implemented from
Baell JB. & Holloway GA. 2010 J. Med. Chem.

0.0 alert
Brenk?

Structural Alert: implemented from
Brenk R. et al. 2008 ChemMedChem

1.0 alert: heavy_metal
Leadlikeness?

Leadlikeness: implemented from
Teague SJ. 1999 Angew. Chem. Int. Ed.
250 ≤ MW ≤ 350
XLOGP ≤ 3.5
Num. rotatable bonds ≤ 7

 No; 1 violation:MW<1.0
Synthetic accessibility?

Synthetic accessibility score: from 1 (very easy) to 10 (very difficult)
based on 1024 fragmental contributions (FP2) modulated by size and complexity penaties,
trained on 12'782'590 molecules and tested on 40 external molecules (r2 = 0.94)

 1.65

Application In Synthesis of [ 20443-98-5 ]

* 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.

  • Downstream synthetic route of [ 20443-98-5 ]

[ 20443-98-5 ] Synthesis Path-Downstream   1~10

  • 1
  • [ 1620-55-9 ]
  • [ 20443-98-5 ]
  • 2-[1-(2,6-dichloro-benzyl)-1<i>H</i>-[4]pyridylidene]-1-phenyl-ethanone; hydrobromide [ No CAS ]
  • 2
  • [ 39067-29-3 ]
  • [ 20443-98-5 ]
  • 3-(4-carboxy-thiazol-2-yl)-1-(2,6-dichloro-benzyl)-pyridinium; bromide [ No CAS ]
  • 3
  • [ 4591-55-3 ]
  • [ 20443-98-5 ]
  • 1-(2,6-dichloro-benzyl)-1,4-dihydro-pyridine-3,5-dicarboxylic acid dimethyl ester [ No CAS ]
  • 4
  • [ 4591-55-3 ]
  • [ 20443-98-5 ]
  • 1-(2,6-dichloro-benzyl)-1,2-dihydro-pyridine-3,5-dicarboxylic acid dimethyl ester [ No CAS ]
  • 5
  • [ 13505-06-1 ]
  • [ 20443-98-5 ]
  • [ 66496-58-0 ]
YieldReaction ConditionsOperation in experiment
98.4% With caesium carbonate; In DMF (N,N-dimethyl-formamide); at 20.0℃; for 6.0h; To a stirred solution of Cs2CO3 (11. 63 G, 35. 69 MMOL) in DMF (180 mL) under a N2 atmosphere containing <strong>[13505-06-1]3-hydroxy-4-nitro-pyridine</strong> (5 G, 35. 69 MMOL) was added 2, 6-dichlorobenzyl bromide (8. 56 G, 35. 69 MMOI). The mixture was stirred for 6 h at ambient temperature. The reaction was then diluted with ETOAC (400 mL) and partitioned with H20 (100 ML). The aqueous layer was extracted with EtOAc (2 X 50 mL). The organic layers were then combined and washed with H20 (2 X 50 mL) and brine (1 X 50 mL). The organics were dried over NA2SO4, filtered and concentrated to dryness under vacuum to yield 3- (2, 6-DICHLORO-BENZYLOXY)-2-NITRO-PYRIDINE (10. 5 G, 98. 4%) as A white solid.
  • 6
  • [ 59288-43-6 ]
  • [ 20443-98-5 ]
  • [ 756520-61-3 ]
YieldReaction ConditionsOperation in experiment
46% With N-ethyl-N,N-diisopropylamine; In N,N-dimethyl-formamide; at 20℃; for 4.5h; 2. 2,6-Dichlorobenzyl-6-nitro-5-[(2,6-dichlorobenzyl)oxy]nicotinate (B3): <strong>[59288-43-6]6-nitro-5-hydroxynicotinic acid</strong> (B2) (3.4 g, 18.5 mmol), 2,6-dichlorobenzyl bromide (8.88 g, 37 mmol), DIPEA (5.5 g, 42.5 mmol) were dissolved in DMF (25 mL) in a 250 mL round bottomed flask and the reaction was stirred at room temperature for 4.5 hr and then concentrated under reduced pressure. The resulting mixture was poured into ice and the filtered. The solid collected was dried under reduced pressure to give 4.25 g (46% yield) of B3. MS (APCI) (M+H)+503. 1H-NMR (DMSO-d6) delta 5.47 (s, 2H, ArCH2O), 5.71 (s, 2H, ArCH2O), 7.24-7.43 (m, 6H, Ar-H), 8.26(d, 1H, Ar-H), 8.66(d, 1H, Ar-H).
46% With N-ethyl-N,N-diisopropylamine; In N,N-dimethyl-formamide; at 20℃; for 4.5h; 2,6-Dichlorobenzyl-6-nitro-5-[(2,6-dichlorobenzyl)oxy]nicotinate (B3): <strong>[59288-43-6]6-nitro-5-hydroxynicotinic acid</strong> (B2) (3.4 g, 18.5 mmol), 2,6-dichlorobenzyl bromide (8.88 g, 37 mmol), DIPEA (5.5 g, 42.5 mmol) were dissolved in DMF (25 mL) in a 250 mL round bottomed flask and the reaction was stirred at room temperature for 4.5 hr and then concentrated under reduced pressure. The resulting mixture was pouredinto ice and the filtered. The solid collected was dried under reduced pressure to give 4.25 g (46% yield) of B3. MS (APCI) (M+H)+ 503. 1HNMR (DMSO-d6) D 5.47 (s, 2H, ArCHaO), 5.71 (s, 2H, ArCHzO), 7.24-7.43 (m, 6H, Ar-H), 8.26(d, 1H, Ar-H), 8.66(d, 1H, Ar-H).
  • 7
  • [ 39903-01-0 ]
  • [ 20443-98-5 ]
  • [ 756503-57-8 ]
  • 8
  • [ 53241-92-2 ]
  • [ 20443-98-5 ]
  • [ 1345869-49-9 ]
  • 9
  • [ 20443-98-5 ]
  • [ 4983-28-2 ]
  • C11H7Cl3N2O [ No CAS ]
  • 10
  • [ 7746-27-2 ]
  • [ 20443-98-5 ]
  • 6-bromo-1-(2,6-dichlorobenzyl)-3-methyl-1H-indazole [ No CAS ]
YieldReaction ConditionsOperation in experiment
45% With potassium carbonate; In N,N-dimethyl-formamide; at 20℃; for 12h; At room temperature, potassium carbonate (490mg, 3.55mmol) was added to a solution of <strong>[7746-27-2]6-bromo-3-methyl-1H-indazole</strong> (500mg, 2.37mmol) and 2,6-dichlorobenzyl bromide (680mg, 2.84mmol) in DMF (5mL). The mixture was stirred for 12hrs, followed by adding water (lOmL), being extracted with EA (20mL*3). The organic phases were combined, washed in turn with water (10mL) and saturated brine (10mL), dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by silica column chromatography (PE:EA = 10:1) to give yellow oil 26-b (400mg, yield 45%). LC-MS (ESI): m/z = 369 [M+H]+.
 

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