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Chemical Structure| 18637-00-8 Chemical Structure| 18637-00-8

Structure of 18637-00-8

Chemical Structure| 18637-00-8

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Product Details of [ 18637-00-8 ]

CAS No. :18637-00-8
Formula : C9H13ClN2O
M.W : 200.67
SMILES Code : N=C(N)C1=CC=CC=C1OCC.[H]Cl
MDL No. :MFCD05663676
InChI Key :NGMHLSBQVIXGNZ-UHFFFAOYSA-N
Pubchem ID :12301244

Safety of [ 18637-00-8 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H332-H335
Precautionary Statements:P261-P280-P305+P351+P338

Computational Chemistry of [ 18637-00-8 ] Show Less

Physicochemical Properties

Num. heavy atoms 13
Num. arom. heavy atoms 6
Fraction Csp3 0.22
Num. rotatable bonds 3
Num. H-bond acceptors 2.0
Num. H-bond donors 2.0
Molar Refractivity 55.97
TPSA ?

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

59.1 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

0.0
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

1.79
Log Po/w (WLOGP)?

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

2.17
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

1.44
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.

-2.36
Solubility 0.885 mg/ml ; 0.00441 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.

-2.65
Solubility 0.449 mg/ml ; 0.00224 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

-2.65
Solubility 0.444 mg/ml ; 0.00221 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

No
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.

-6.25 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

0.0
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)

1.63

Application In Synthesis of [ 18637-00-8 ]

* 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 [ 18637-00-8 ]

[ 18637-00-8 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 6609-57-0 ]
  • [ 18637-00-8 ]
YieldReaction ConditionsOperation in experiment
With ammonium chloride;trimethylaluminum; In hexane; chloroform; toluene; EXAMPLE 4A 2-Ethoxybenzamidine hydrochloride 21.4 g (400 mmol) of ammonium chloride are suspended in 375 ml of toluene, and the suspension is cooled to 0 C. 200 ml of a 2M solution of trimethylaluminium in hexane are added dropwise, and the mixture is stirred at room temperature until the evolution of gas has ceased. After addition of 29.44 g (200 mmol) of <strong>[6609-57-0]2-ethoxybenzonitrile</strong>, the reaction mixture is stirred at 80 C. (bath) overnight. With ice-cooling, the cooled reaction mixture is added to a suspension of 100 g of silica gel and 950 ml of chloroform, and the mixture is stirred at room temperature for 30 minutes. The mixture is filtered off with suction, and the filter residue is washed with the same amount of methanol. The mother liquor is concentrated, the resulting residue is stirred with a mixture of dichloromethane and methanol (9:1), the solid is filtered off with suction and the mother liquor is concentrated. This gives 30.4 g (76%) of a colourless solid. 200 MHz 1H-NMR (DMSO-d6): 1.36, t, 3H; 4.12, quart., 2H; 7.10, t, 1H; 7.21, d, 1H; 7.52, m, 2H; 9.30, s, broad, 4H.
With ammonium chloride;trimethylaluminum; In hexane; chloroform; toluene; EXAMPLE 12A 2-Ethoxy-benzamidine hydrochloride 21.4 g (400 mmol) of ammonium chloride are suspended in 375 ml of toluene, and the suspension is cooled to 0 C. 200 ml of a 2M solution of trimethylaluminium in hexane are added dropwise, and the mixture is stirred at room temperature until evolution of gas has ceased. 29.44 g (200 mmol) of <strong>[6609-57-0]2-ethoxybenzonitrile</strong> are added, and the reaction mixture is then stirred at 80 C. (bath) overnight. The cooled reaction mixture is, with ice-cooling, added to a suspension of 100 g of silica gel and 950 ml of chloroform, and the mixture is stirred at room temperature for 30 minutes. The mixture is filtered off with suction and the filter residue is washed with the same amount of methanol. The mother liquor is evaporated, the resulting residue is stirred with a mixture of dichloromethane and methanol (9:1), the solid is filtered off with suction and the mother liquor is evaporated. This gives 30.4 g (76%) of a colourless solid. 200 MHz 1H-NMR (DMSO-d6): 1.36 (t, 3H); 4.12 (quart., 2H); 7.10 (t, 1H); 7.21 (d, 1H); 7.52 (m, 2H); 9.30 (s, broad, 4H).
NH4Cl (1.26 g, 23.52 mmoles) is introduced in a 100 ml round bottom flask and suspended in 16 ml of anhydrous toluene under argon atmosphere . The mixture is cooled in an ice bath and 2N Al (CH3) 3 (12 ml) in toluene are added dropwise, keeping under stirring for 30' at room temperature. 2-Ethoxybenzonitrile (Ig) is added and the reaction is refluxed with stirring for 9 hours. Silica (0.8g) and then methanol (8 ml) are added to the mixture of reaction to eliminate the excess of Al (CH3) 3. The suspension is diluted with 8 ml of dichloromethane and then filtered washing the obtained solid several times <n="23"/>with methanol .The filtered solution is acidified with cone. HCl and evaporated to dryness. The obtained residue is treated with 12 ml of a mixture of dichlorometane/methanol (9:1), filtered and the organic solution evaporated to dryness . The residue is washed with ether.
  • 2
  • [ 6609-57-0 ]
  • [ 75-24-1 ]
  • [ 18637-00-8 ]
YieldReaction ConditionsOperation in experiment
With ammonium chloride; In hexane; chloroform; toluene; EXAMPLE III 2-Ethoxy-benzamidine hydrochloride 21.4 g (400 mmol) of ammonium chloride are suspended in 375 ml of toluene and the suspension is cooled down to 0 C. 200 ml of a 2 M solution of trimethylaluminum in hexane are added dropwise and the mixture is stirred at room temperature until the evolution of gas has come to an end. After 29.44 g (200 mmol) of <strong>[6609-57-0]2-ethoxybenzonitrile</strong> (example II) have been added, the reaction mixture is stirred overnight at 80 C. (bath). Having been cooled down, the reaction mixture is added, while cooling with ice, to a suspension consisting of 100 g of silica gel and 950 ml of chloroform and the mixture is stirred at room temperature for 30 minutes. Filtration with suction is carried out and the subsequent washing takes place with the same quantity of methanol. The mother liquor is evaporated and the resulting residue is stirred up with a mixture of dichloromethane and methanol (9:1), after which the solid is filtered off with suction and the mother liquor is evaporated. 3.4 g (76%) of a colorless solid are obtained. 200 MHz 1H-NMR (DMSO-D6): 1.36, t, 3H; 4.12, quart., 2H; 7.10, t, 1H; 7.21, d, 1H; 7.52, m, 2H; 9.30, s, broad, 4H.
With ammonium chloride; In hexane; chloroform; toluene; EXAMPLE 13A 2-Ethoxybenzamidine hydrochloride 21.4 g (400 mmol) of ammonium chloride are suspended in 375 ml of toluene, and the suspension is cooled to 0 C. 200 ml of a 2 M solution of trimethylaluminum in hexane are added dropwise, and the mixture is stirred at room temperature until the evolution of gas has ceased. Following addition of 29.44 g (200 mmol) of <strong>[6609-57-0]2-ethoxybenzonitrile</strong>, the reaction mixture is stirred at 80 C. (bath) overnight. The cooled reaction mixture is, with ice-cooling, added to a suspension of 100 g of silica gel and 950 ml of chloroform, and the mixture is stirred at room temperature for 30 minutes. The mixture is filtered off with suction and the filter cake is washed with the same amount of methanol. The mother liquor is concentrated, the resulting residue is triturated with a mixture of dichloromethane and methanol (9:1), the solid is filtered off with suction and the mother liquor is concentrated. This gives 30.4 g (76%) of a colorless solid. 200 MHz 1H-NMR (DMSO-d6): 1.36 (t, 3H); 4.12 (quart., 2H); 7.10 (t, 1H); 7.21 (d, 1H); 7.52 (m, 2H); 9.30 (s, broad, 4H).
 

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