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Chemical Structure| 23056-35-1 Chemical Structure| 23056-35-1

Structure of 23056-35-1

Chemical Structure| 23056-35-1

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Product Details of [ 23056-35-1 ]

CAS No. :23056-35-1
Formula : C6H5ClN2O2
M.W : 172.57
SMILES Code : CC1=NC=CC(Cl)=C1[N+]([O-])=O
MDL No. :MFCD11215572
InChI Key :NRXOKEODPIKBFA-UHFFFAOYSA-N
Pubchem ID :14448144

Safety of [ 23056-35-1 ]

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

Computational Chemistry of [ 23056-35-1 ] Show Less

Physicochemical Properties

Num. heavy atoms 11
Num. arom. heavy atoms 6
Fraction Csp3 0.17
Num. rotatable bonds 1
Num. H-bond acceptors 3.0
Num. H-bond donors 0.0
Molar Refractivity 43.03
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.

1.26
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

1.71
Log Po/w (WLOGP)?

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

1.95
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.

0.22
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

0.3
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

1.09

Water Solubility

Log S (ESOL):?

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

-2.32
Solubility 0.817 mg/ml ; 0.00473 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.

-2.56
Solubility 0.477 mg/ml ; 0.00276 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

-2.4
Solubility 0.679 mg/ml ; 0.00394 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)

1.78

Application In Synthesis of [ 23056-35-1 ]

* 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 [ 23056-35-1 ]

[ 23056-35-1 ] Synthesis Path-Downstream   1~33

  • 1
  • [ 54-85-3 ]
  • [ 23056-35-1 ]
  • Isonicotinic acid N'-(2-methyl-3-nitro-pyridin-4-yl)-hydrazide; hydrochloride [ No CAS ]
  • 2
  • [ 18614-66-9 ]
  • [ 23056-35-1 ]
  • 3
  • [ 1068-57-1 ]
  • [ 23056-35-1 ]
  • Acetic acid N'-(2-methyl-3-nitro-pyridin-4-yl)-hydrazide; hydrochloride [ No CAS ]
  • 4
  • [ 23056-35-1 ]
  • 2-methyl-3-nitro-4(1H)pyridinone hydrazone [ No CAS ]
  • 5
  • [ 18437-58-6 ]
  • [ 23056-35-1 ]
  • 6
  • [ 5470-66-6 ]
  • [ 23056-35-1 ]
  • 7
  • [ 18614-65-8 ]
  • [ 23056-35-1 ]
  • 8
  • [ 23056-35-1 ]
  • [ 121845-73-6 ]
  • 9
  • [ 23056-35-1 ]
  • 4-Hydrazino-2-methyl-pyridin-3-ylamine [ No CAS ]
  • 10
  • [ 23056-35-1 ]
  • [ 121845-74-7 ]
  • 11
  • [ 23056-35-1 ]
  • [ 121845-75-8 ]
  • 12
  • [ 23056-35-1 ]
  • 5-Methyl-1,2-dihydro-pyrido[3,4-e][1,2,4]triazine; hydrochloride [ No CAS ]
  • 13
  • [ 23056-35-1 ]
  • 3,5-Dimethyl-1,2-dihydro-pyrido[3,4-e][1,2,4]triazine; hydrochloride [ No CAS ]
  • 14
  • [ 23056-35-1 ]
  • Acetic acid N'-(3-amino-2-methyl-pyridin-4-yl)-hydrazide; hydrochloride [ No CAS ]
  • 15
  • [ 23056-35-1 ]
  • 5-Methyl-3-pyridin-4-yl-1,2-dihydro-pyrido[3,4-e][1,2,4]triazine; hydrochloride [ No CAS ]
  • 16
  • [ 23056-35-1 ]
  • Isonicotinic acid N'-(3-amino-2-methyl-pyridin-4-yl)-hydrazide; hydrochloride [ No CAS ]
  • 17
  • [ 18614-66-9 ]
  • [ 10026-13-8 ]
  • [ 23056-35-1 ]
YieldReaction ConditionsOperation in experiment
In dichloromethane; trichlorophosphate; Step 4 4-chloro-3-nitro-2-picoline A mixture of 4-hydroxy-3-nitro-2-picoline (820 mg, 5.32 mmol) and phosphorous pentachloride (1.11 g, 5.32 mmol) in phosphorous oxychloride (6 mL) was heated for 2 hours in a 100° C. oil bath. The phosphorous oxychloride was removed under vacuum and after cooling to room temperature, the residue was partitioned between ice (10 mL) and methylene chloride (10 mL). The aqueous layer was re-extracted with additional methylene chloride (2*10 mL) and the combined extracts were dried with magnesium sulfate, filtered and gave the title compound as a light brown solid upon evaporation (0.787 g). 1 H NMR (CDCl3, 300 MHz) delta2.60 (s, Me),7.35 (d, ArH) and 8.51 (d, ArH).
  • 18
  • 6-methyl-2-thioxo-2,3-dihydrothiazolo[4,5-c]pyridine [ No CAS ]
  • 4-chloro-3-nitro-2-(acetoxymethyl)pyridine [ No CAS ]
  • [ 23056-35-1 ]
  • 6-hydroxymethyl-2-thioxo-2,3-dihydrothiazolo[4,5-c]pyridine [ No CAS ]
YieldReaction ConditionsOperation in experiment
With carbon disulfide; sodium sulfide nonahydrate; hydrogen sulfide; In water; Step 7 6-hydroxymethyl-2-thioxo-2,3-dihydrothiazolo[4,5-c]pyridine A suspension of sulfur (0.5 g, 15.6 mmol) and sodium sulfide nonahydrate (1.84 g, 7.66 mmol) in water (5 mL) was heated in a 50° C. oil bath for 15 minutes. The amber colored solution was cooled to room temperature and the 2:1 mixture of 4-chloro-3-nitro-2-acetoxymethylpyridine/<strong>[23056-35-1]4-chloro-3-nitro-2-picoline</strong> (0.25 g, 0.36 mmol) and carbon disulfide (2 mL, 33.4 mmol) were added, and the mixture was heated in a 70° C oil bath for 18 hours under a nitrogen atmosphere. Workup and chromatography as described in Step 3 of Preparative Example 4 afforded an approximately 4:1 ratio mixture of the title compound and 6-methyl-2-thioxo-2,3-dihydrothiazolo[4,5-c]pyridine (88 mg), as observed by 1 H NMR. 1 H NMR (DMSO-d6, 300 MHz) delta4.83 (s, CH2 OH), 7.75 (d, ArH) and 8.21 (d, ArH).
  • 19
  • [ 171874-55-8 ]
  • [ 23056-35-1 ]
  • 4-chloro-3-nitro-2-(acetoxymethyl)pyridine [ No CAS ]
YieldReaction ConditionsOperation in experiment
In dichloromethane; acetic anhydride; ethyl acetate; Step 6 4-chloro-3-nitro-2-(acetoxymethyl)pyridine A 45:55 mixture of <strong>[23056-35-1]4-chloro-3-nitro-2-picoline</strong> N-oxide and <strong>[23056-35-1]4-chloro-3-nitro-2-picoline</strong> (0.48 g, 1.15 mmol) in acetic anhydride (5 mL, 53 mmol) was placed in a 60° C. oil bath for 1 hour. The temperature of the oil bath was then increased to 70° C. over the next 1.5 hours. The solution was cooled to room temperature, evaporated and partitioned between methylene chloride (20 mL) and saturated aqueous potassium carbonate (120 mL). The aqueous layer was re-extracted with more methylene chloride (2*20 mL) and the combined extracts were dried with magnesium sulfate, filtered and evaporated to a foam (0.43 g), The foam was dissolved in methylene chloride and was placed on preparative silica plates (5*1000 micron, analtech, 20*20 cm) which were developed with 5percent ethyl acetate in methylene chloride and eluted with ethyl acetate to give an approximately 1:2 mixture of the title compound and 4-chloro-3-nitro-2 -picoline(0.25 g). 1 H NMR (CDCl3, 400 MHz) delta2.15 (s, OAc), 5.16 (s, CH2 OAc),7.38 (d, ArH) and 8.47 (d, ArH).
  • 20
  • [ 23056-35-1 ]
  • [ 171874-55-8 ]
YieldReaction ConditionsOperation in experiment
In peracetic acid; trifluoroacetic acid; Step 5 <strong>[23056-35-1]4-chloro-3-nitro-2-picoline</strong> N-oxide <strong>[23056-35-1]4-chloro-3-nitro-2-picoline</strong> (0.787 g, 4.6 mmol) was dissolved in a mixture of trifluoroacetic acid (3 mL) and 32percent peracetic acid (2 mL) and was heated in a 60° C. oil bath for 4 hours, with an addition of 32percent peracetic acid at 2 hours (2 mL). The solution was cooled to room temperature and was partitioned between methylene chloride (30 mL) and saturated aqueous potassium carbonate (30 mL). The aqueous layer was re-extracted with more methylene chloride (2*20 mL) and the combined extracts were dried with magnesium sulfate, filtered and evaporated to give a 45:55 mixture of the title compound and <strong>[23056-35-1]4-chloro-3-nitro-2-picoline</strong>(0.5 g). 1 H NMR (CDCl3, 300 MHz) delta2.60 (s, Me), 7.35 (d, ArH) and 8.51 (d, ArH).
YieldReaction ConditionsOperation in experiment
When in accordance with the procedure of example 1, equal molar amounts of the following are substituted for 3-nitro-2-chloropyridine:...2-chloro-3-nitro-5-methylpyridine,2-chloro-3-nitro-6-methylpyridine,2-chloro-3-nitro-5,6-dimethylpyridine,2-chloro-3-nitro-6-methoxypyridine, and4-chloro-3-nitro-2-methylpyridine,
  • 22
  • [ 23056-35-1 ]
  • (S)-(2-chloro-3-(trifluoromethyl)phenyl)(1-(5-fluoropyrimidin-2-yl)-4-methyl-1,4,6,7-tetrahydro-5H-[1,2,3]triazolo[4,5-c]pyridin-5-yl)methanone [ No CAS ]
  • 23
  • [ 23056-35-1 ]
  • (R)-(2-chloro-3-(trifluoromethyl)phenyl)(1-(5-fluoropyrimidin-2-yl)-4-methyl-1,4,6,7-tetrahydro-5H-[1,2,3]triazolo[4,5-c]pyridin-5-yl)methanone [ No CAS ]
  • 24
  • [ 23056-35-1 ]
  • (2-chloro-3-(trifluoromethyl)phenyl)(1-(5-fluoropyrimidin-2-yl)-4-methyl-1,4,6,7-tetrahydro-5H-[1,2,3]triazolo[4,5-c]pyridin-5-yl)methanone [ No CAS ]
  • 25
  • [ 23056-35-1 ]
  • 1-(5-fluoropyrimidin-2-yl)-4-methyl-1H-imidazo[4,5-c]pyridine [ No CAS ]
  • 26
  • [ 23056-35-1 ]
  • N-(5-fluoropyrimidin-2-yl)-2-methylpyridine-3,4-diamine [ No CAS ]
  • 27
  • [ 23056-35-1 ]
  • 1-(5-fluoropyrimidin-2-yl)-4-methyl-4,5,6,7-tetrahydro-1H-imidazo[4,5-c]pyridine [ No CAS ]
  • 28
  • [ 944401-77-8 ]
  • [ 23056-35-1 ]
  • 5-fluoro-N-(2-methyl-3-nitropyridin-4-yl)pyrimidin-2-amine [ No CAS ]
YieldReaction ConditionsOperation in experiment
38% With (2-fluoro-3-(trifluoromethyl)phenyl)(1-(4-fluorophenyl)-4-methyl-6,7-dihydro-1H-imidazo[4,5-c]pyridin-5(4H)-yl)methanone; palladium diacetate; potassium carbonate; In toluene; at 110.0℃; for 1.0h;Microwave irradiation; A solution of Pd(OAc)2 (0.15 g, 0.68 mmol) and BINAP (0.42 g, 0.68 mmol) were stirred in toluene (2 ml) at rt for 10 minutes. This mixture was then added to a microwave vial which contained <strong>[23056-35-1]4-chloro-2-methyl-3-nitropyridine</strong> (3.00 g, 16.8 mmol), 2-amino-4-fluoropyridine (2.20 g, 18.5 mmol), and K2CO3 (2.6 g, 18.6 mmol) in toluene (10 ml). The reaction was irradiated in a microwave apparatus at 110° C. for 1 h. The reaction was diluted with DCM, filtered through Celite©, washed, and concentrated. Chromatography of the resulting residue (SiO2; EtOAc:Hex) gave the desired compound (1.60 g, 38percent). MS (ESI): mass calculated for C10H8ClFN5O2, 249.07; m/z found 250.0 [M+H]+.
  • 29
  • [ 23056-35-1 ]
  • N4-(5-fluoropyrimidin-2-yl)-2-methylpyridine-3,4-diamine [ No CAS ]
  • 30
  • [ 23056-35-1 ]
  • 1-(5-fluoropyrimidin-2-yl)-4-methyl-1H-[1,2,3]triazolo-[4,5-c]pyridine [ No CAS ]
  • 31
  • [ 23056-35-1 ]
  • 1-(5-fluoropyrimidin-2-yl)-4-methyl-4,5,6,7-tetrahydro-1H-[1,2,3]triazolo[4,5-c]pyridine [ No CAS ]
  • 32
  • [ 23056-35-1 ]
  • (R)-(2-chloro-3-(trifluoromethyl)phenyl)(1-(5-fluoropyrimidin-2-yl)-4-methyl-1,4,6,7-tetrahydro-5H-[1,2,3]triazolo[4,5-c]pyridin-5-yl)methanone [ No CAS ]
  • (S)-(2-chloro-3-(trifluoromethyl)phenyl)(1-(5-fluoropyrimidin-2-yl)-4-methyl-1,4,6,7-tetrahydro-5H-[1,2,3]triazolo[4,5-c]pyridin-5-yl)methanone [ No CAS ]
  • 33
  • [ 1683-85-8 ]
  • [ 23056-35-1 ]
  • 5-fluoro-N-(2-methyl-3-nitropyridin-4-yl)pyrimidin-2-amine [ No CAS ]
 

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Technical Information

Categories

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