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Chemical Structure| 7651-83-4 Chemical Structure| 7651-83-4

Structure of 7651-83-4

Chemical Structure| 7651-83-4

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CAS No.: 7651-83-4

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Product Details of [ 7651-83-4 ]

CAS No. :7651-83-4
Formula : C9H7NO
M.W : 145.16
SMILES Code : OC1=CC2=C(C=C1)C=CN=C2
MDL No. :MFCD00456131
InChI Key :WCRKBMABEPCYII-UHFFFAOYSA-N
Pubchem ID :459767

Safety of [ 7651-83-4 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H332-H335
Precautionary Statements:P280-P305+P351+P338-P310

Computational Chemistry of [ 7651-83-4 ] Show Less

Physicochemical Properties

Num. heavy atoms 11
Num. arom. heavy atoms 10
Fraction Csp3 0.0
Num. rotatable bonds 0
Num. H-bond acceptors 2.0
Num. H-bond donors 1.0
Molar Refractivity 43.77
TPSA ?

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

33.12 ?2

Lipophilicity

Log Po/w (iLOGP)?

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

1.36
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

1.89
Log Po/w (WLOGP)?

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

1.94
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.

0.92
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

2.01
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

1.62

Water Solubility

Log S (ESOL):?

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

-2.6
Solubility 0.362 mg/ml ; 0.00249 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.

-2.21
Solubility 0.899 mg/ml ; 0.00619 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

-3.1
Solubility 0.115 mg/ml ; 0.000791 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.

-5.84 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

0.0 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)

 1.0

Application In Synthesis of [ 7651-83-4 ]

* 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 [ 7651-83-4 ]

[ 7651-83-4 ] Synthesis Path-Downstream   1~3

  • 1
  • [ 39989-39-4 ]
  • [ 7651-83-4 ]
YieldReaction ConditionsOperation in experiment
With sodium hydroxide; boron tribromide; In (2S)-N-methyl-1-phenylpropan-2-amine hydrate; dichloromethane; III. Synthesis of 7-Hydroxyisoquinoline To a 2-liter, 3-necked round bottom flask equipped with a magnetic stir bar and addition funnel is added 19.7 g (0.124 mole) <strong>[39989-39-4]7-methoxyisoquinoline</strong> and 800 ml of dry dichloromethane. This solution is stirred and cooled to -75 C. with a dry ice/acetone bath, 628 ml (0.628 mole) of 1.0M boron tribromide in dichloromethane is added dropwise maintaining the temperature at -75 C. Thereafter the slurry is stirred for 18 hours allowing the temperature to rise to room temperature. The reaction slurry is poured into 1 liter of ice water and stirred for an hour. The layers are separated and the aqueous layer is then adjusted from acidic to neutral (pH 7) with 1N NaOH. A yellow solid precipitates and is filtered off, then air dried to yield 14.5 g of a yellow solid, 81%.
With pyridine hydrochloride; In ethyl acetate; (15-1) The raw material <strong>[39989-39-4]7-methoxyisoquinoline</strong> was prepared according to J. Org. Chem., 38(21), 3701(1973). A mixture of 7.4 g of <strong>[39989-39-4]7-methoxyisoquinoline</strong> and 30 g of pyridine hydrochloride was heated with stirring at 180 for 6 hours. The reaction mixture was allowed to cool, dissolved in ethyl acetate, and washed with a saturated aqueous sodium chloride solution. The solution was dried with anhydrous magnesium sulfate and the solvent was distilled off under reduced pressure to give 4.43 g of 7-hydroxyisoquinoline.
  • 2
  • [ 126-33-0 ]
  • [ 7651-83-4 ]
  • [ 56623-93-9 ]
YieldReaction ConditionsOperation in experiment
100% With nitronium tetrafluoroborate; In methanol; IV. Synthesis of 7-Hydroxy-8-nitroisoquinoline To a 300 ml round bottom flask is added 14.5 g (0.1 mole) of 7-hydroxyisoquinoline and 100 ml of warmed tetramethylene sulfone. The brown slurry is stirred and to it is added portionwise 18.6 g (0.14 mole) of nitronium tetrafluoroborate with cooling (ice bath). The reaction is stirred for 3 hours. The reaction is then quenched with 100 ml of methanol, evaporated to dryness and triturated twice with ether to precipitate a dark solid (19.0 g, 100%).
100% With nitronium tetrafluoroborate; In methanol; IV. Synthesis of 7-Hydroxy-8-nitroisoquinoline To a 300 ml round bottom flask is added 14.5 g (0.1 mole) of 7-hydroxyisoquinoline and 100 ml of warmed tetramethylene sulfone. The brown slurry is stirred and to it is added portionwise 18.6 g (0.14 mole) of nitronium tetrafluoroborate with cooling (ice bath). The reaction is stirred for 3 hours. The reaction is then quenched with 100 ml of methanol, evaporated to dryness and triturated twice with ether to precipitate a dark solid (19.0 g, 100%).
  • 3
  • [ 39989-39-4 ]
  • [ 67-68-5 ]
  • [ 7651-83-4 ]
YieldReaction ConditionsOperation in experiment
With sodium hydroxide; boron tribromide; In (2S)-N-methyl-1-phenylpropan-2-amine hydrate; dichloromethane; III. Synthesis of 7-Hydroxyisoquinoline To a 2-liter, 3-necked round bottom flask equipped with a magnetic stir bar and addition funnel is added 19.7 g (0.124 mole) of <strong>[39989-39-4]7-methoxyisoquinoline</strong> and 800 ml of dry dichloromethane. This solution is stirred and cooled to -75 C. with a dry ice/acetone bath, 628 ml (0.628 mole) of 1.0M boron tribromide in dichloromethane is added dropwise maintaining the temperature at -75 C. Thereafter the slurry is stirred for 18 hours allowing the temperature to rise to room temperature. The reaction slurry is poured into 1 liter of ice water and stirred for an hour. The layers are separated and the aqueous layer is then adjusted from acidic to neutral (pH 7) with 1N NaOH. A yellow solid precipitates and is filtered off, then air dried to yield 14.5 g of a yellow solid, 81%.
 

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