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Chemical Structure| 1064783-29-4 Chemical Structure| 1064783-29-4

Structure of 1064783-29-4

Chemical Structure| 1064783-29-4

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Product Details of [ 1064783-29-4 ]

CAS No. :1064783-29-4
Formula : C5H2ClFN2O2
M.W : 176.53
SMILES Code : O=[N+](C1=NC=C(Cl)C=C1F)[O-]
MDL No. :MFCD19690192
InChI Key :FUKOQNFWJNNEQO-UHFFFAOYSA-N
Pubchem ID :53438964

Safety of [ 1064783-29-4 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P305+P351+P338

Computational Chemistry of [ 1064783-29-4 ] Show Less

Physicochemical Properties

Num. heavy atoms 11
Num. arom. heavy atoms 6
Fraction Csp3 0.0
Num. rotatable bonds 1
Num. H-bond acceptors 4.0
Num. H-bond donors 0.0
Molar Refractivity 38.03
TPSA ?

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

58.71 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

1.09
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

1.74
Log Po/w (WLOGP)?

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

2.2
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.

1.94
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

0.37
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

1.47

Water Solubility

Log S (ESOL):?

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

-2.37
Solubility 0.756 mg/ml ; 0.00428 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.

-2.59
Solubility 0.454 mg/ml ; 0.00257 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

-2.3
Solubility 0.887 mg/ml ; 0.00502 mol/l
Class?

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

Soluble

Pharmacokinetics

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)
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

No
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

No
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.

-6.14 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

0.0
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

2.0 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)

2.08

Application In Synthesis of [ 1064783-29-4 ]

* 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 [ 1064783-29-4 ]

[ 1064783-29-4 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 246847-98-3 ]
  • [ 1064783-29-4 ]
YieldReaction ConditionsOperation in experiment
54% Example 4(b) 5-chloro-3-fluoro-2-nitropyridine: To a 250 mL flask equipped with a stir bar was added <strong>[246847-98-3]2-amino-5-chloro-3-fluoropyridine</strong> (1.5 g, 1.46 mmol) and concentrated sulfuric acid (50 mL). The mixture was stirred until homogeneous, followed by the addition potassium thiosulfate (13 g, 50 mmol) in small aliquots. The mixture was allowed to stir overnight, initially turning a light green color before settling into a deep yellow. The solution was then poured onto 500 g of ice and allowed to stir for 10 minutes before solid sodium carbonate was added in portions until the pH reached 8-10. The product was extracted with ethyl acetate, concentrated to dryness and purified by column chromatography (10-15% ethyl acetate in hexanes) to afford 5-chloro-3-fluoro-2-nitropyridine (0.99 g, 5.6 mmol, 54% yield), characterized by 1H NMR (d6-DMSO).
33% With sodium persulfate; sulfuric acid; at 20℃; for 12h; 5-Chloro-3-fluoropyridin-2-amine (500.0 mg, 3.41 mmol) was dissolved in H2SO4 (1.5 mL), and Na2S2O8 (406.1 mg, 1.71 mmol) was added thereto. The mixture was stirred at room temperature for 12 hours and water was then poured into the reaction mixture. The resulting solution was alkalized with saturated NaHCO3 aqueous solution (pH=9) and then extracted with EtOAc. The organic layer was dried over anhydrous Na2SO4, filtered and then distilled under reduced pressure. The residue was purified by column chromatography (EtOAc:n-Hex=10:90) on silica. The fractions containing the product were collected and evaporated to obtain white solid compound of 5-chloro-3-fluoro-2-nitropyridine (200.0 mg, 33%). [1072] 1H-NMR (300 MHz, DMSO-d6); delta: 8.21 (d, 1H, J=1.8 Hz), 8.17 (m, 1H)
31.6% With dipotassium peroxodisulfate; sulfuric acid; A round-bottom flask was charged with 3,5-dichloropyridin-2-amine (1 equiv), sulfuric acid (0.5 M) to give a solution. Potassium persulfate (5 equiv) was added in two portions over 10 mm. After stirring for 20 mm, a substantial exotherm and gas evolution was observed. The resulting mixture was stirred overnight. The next morning the mixture was poured into crushed ice with the aid of water, then the aq. mixture was treated with solid sodium carbonate until it reached pH 8-10. The aq. mixture was extracted with DCM (3x), and the combined organic extracts were dried over sodium sulfate, filtered, and concentrated. The residue was purified by chromatography on silica gel (0-50% EtOAc/heptane) to give 5-chloro-3-fluoro-2-nitropyridine (31.6 % yield) as an off-white solid. LCMS (m/z) (M+H) = 176.9, Rt = 1.03 mm.
23.3% To concentrated sulfuric acid (100mL) cooled to -10 was added <strong>[246847-98-3]2-amino-3-fluoro-5-chloropyridine</strong> (10 g, 68.2 mmol) with stirring. After dissolution, the mixture was continued to stir at -10 for 15min. Then 50 mL 30%hydrogen peroxide solution was added slowly, and the reaction temperature was maintained below 0. The mixture was warmed to room temperature and stirred for 72h, then poured into 500 mL 13%ice brine with stirring and extracetd with 200mL EA for three times. The combined organic extracts were washed with saturated sodium bicarbonate solution until the aqueous phase was alkaline, dried with anhydrous sodium sulfate and concentrated in vacuo. The residue was purified by column chromatography to give the desired product 2-nitro-3-fluoro-5-chloropyridine (2.8g, 23.3%) .

 

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Technical Information

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