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Chemical Structure| 25475-67-6 Chemical Structure| 25475-67-6

Structure of 3-Aminoisoquinoline
CAS No.: 25475-67-6

Chemical Structure| 25475-67-6

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Product Details of [ 25475-67-6 ]

CAS No. :25475-67-6
Formula : C9H8N2
M.W : 144.17
SMILES Code : C1=C(N)N=CC2=CC=CC=C12
MDL No. :MFCD00102190
InChI Key :VYCKDIRCVDCQAE-UHFFFAOYSA-N
Pubchem ID :311869

Safety of [ 25475-67-6 ]

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

Computational Chemistry of [ 25475-67-6 ] 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 1.0
Num. H-bond donors 1.0
Molar Refractivity 46.15
TPSA ?

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

38.91 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

1.47
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

1.75
Log Po/w (WLOGP)?

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

1.82
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.

1.32
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

1.77
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

1.63

Water Solubility

Log S (ESOL):?

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

-2.51
Solubility 0.446 mg/ml ; 0.0031 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.

-2.18
Solubility 0.943 mg/ml ; 0.00654 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

-3.32
Solubility 0.0693 mg/ml ; 0.000481 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.

-5.94 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)

1.26

Application In Synthesis of [ 25475-67-6 ]

* 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 [ 25475-67-6 ]

[ 25475-67-6 ] Synthesis Path-Downstream   1~35

  • 2
  • [ 25475-67-6 ]
  • [ 123-06-8 ]
  • [ 102781-28-2 ]
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  • [ 108-24-7 ]
  • [ 6187-27-5 ]
YieldReaction ConditionsOperation in experiment
at 60℃; for 16h; EXAMPLE 181A N-3-isoquinolinylacetamide 3-Aminoisoquinoline (495 mg, 3.44 mmol) was stirred in Ac2O (9 mL) at 60° for 16 hours. The mixture was cooled to room temperature and concentrated in vacuo to provide the title compound which was used in the next step without further purification.
With triethylamine; In dichloromethane; at 20℃; for 3.5h; Acetic anhydride (5.92 mL, 62.6 mmol) was added to a suspension of isoquinolin-3- amine (3.01 g, 20.9 mmol) and triethylamine (3.18 mL, 23.0 mmol) in CH2Cl2 (80 mL) at ambient temperature. The mixture was stirred 3.5 hours, then the volatiles were evaporated in vacuo. The residue was chased with toluene and concentrated in vacuo (3 x 25 mL) to provide the title compound (3.89 g) as a yellow solid. This material, which was found to also contain small quantities of acetic acid, was used without further purification. 1H NMR (300 MHz, DMSO-J6) delta 10.58 (s, IH), 9.13 (s, IH), 8.45 (s, IH), 8.04 (d, J= 7.8 Hz, IH), 7.88 (d, J= 8.2 Hz, IH), 7.69 (ddd, J= 8.2, 6.8, 1.2 Hz, IH), 7.52 (ddd, J= 7.9, 6.9, 1.0 Hz, IH), 2.13 (s, 3H).
With triethylamine; In dichloromethane; at 20℃; for 3.5h; Acetic anhydride (5.92 mL, 62.6 mmol) was added to a suspension of isoquinolin-3- amine (3.01 g, 20.9 mmol) and triethylamine (3.18 mL, 23.0 mmol) in CH2Cl2 (80 mL) at ambient temperature. The mixture was stirred 3.5 hours, then the volatiles were evaporated in vacuo. The residue was chased with toluene and concentrated in vacuo (3 x 25 mL) to provide the title compound (3.89 g) as a yellow solid. This material, which was found to also contain small quantities of acetic acid, was used without further purification. 1H NMR (300 MHz, DMSO-J6) delta 10.58 (s, IH), 9.13 (s, IH), 8.45 (s, IH), 8.04 (d, J= 7.8 Hz, IH), 7.88 (d, J= 8.2 Hz, IH), 7.69 (ddd, J= 8.2, 6.8, 1.2 Hz, IH), 7.52 (ddd, J= 7.9, 6.9, 1.0 Hz, IH), 2.13 (s, 3H).
  • 8
  • [ 25475-67-6 ]
  • C27H28F3N5O2 [ No CAS ]
  • 9
  • [ 25475-67-6 ]
  • 1-(4-(8-azabicyclo[3.2.1]octan-8-yl)-3-(trifluoromethyl)benzyl)-3-(3-aminoisoquinolin-5-yl)urea [ No CAS ]
  • 10
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  • [ 946388-36-9 ]
  • 11
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  • [ 946388-37-0 ]
  • 12
  • [ 25475-67-6 ]
  • N-(3-amino-5-isoquinolinyl)-N'-[4-(1-azepanyl)benzyl]urea [ No CAS ]
  • 13
  • [ 25475-67-6 ]
  • [ 946388-35-8 ]
  • 14
  • [ 25475-67-6 ]
  • [ 581813-12-9 ]
  • 15
  • [ 25475-67-6 ]
  • 4-(3-trifluoromethyl-pyridin-2-yl)-piperazine-1-carboxylic acid isoquinolin-3-ylamide [ No CAS ]
  • 16
  • [ 25475-67-6 ]
  • benzo[f][1,7]naphthyridine-1-carbaldehyde [ No CAS ]
  • 17
  • [ 25475-67-6 ]
  • benzo[f][1,7]naphthyridine-3-carbaldehyde [ No CAS ]
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  • [ 25475-67-6 ]
  • [ 33459-64-2 ]
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  • [ 75961-48-7 ]
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  • [ 103856-57-1 ]
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  • [ 6624-49-3 ]
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  • [ 3336-49-0 ]
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  • [ 101860-70-2 ]
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  • 25
  • [ 36718-46-4 ]
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  • [ 86-94-2 ]
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  • 27
  • [ 53987-60-3 ]
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  • 28
  • [ 25475-67-6 ]
  • [ 302963-42-4 ]
  • C28H23ClN4O2S [ No CAS ]
YieldReaction ConditionsOperation in experiment
[0553] Compound 516A was prepared from 473A by an analogous method as that of 473B, except using <strong>[25475-67-6]3-aminoisoquinoline</strong> in place of 2-bromo-6-aminopyridine.
  • 29
  • [ 25475-67-6 ]
  • 2-({2-[(morpholine-4-carbonyl)-amino]-pyridin-4-ylmethyl}-amino)-benzoic acid methyl ester [ No CAS ]
  • morpholine-4-carboxylic acid (4-[2-(isoquinolin-3-ylcarbamoyl)-phenylamino]-methyl}-pyridin-2-yl)-amide [ No CAS ]
YieldReaction ConditionsOperation in experiment
32% With trimethylaluminum; In 1,2-dichloro-ethane; toluene; at 120℃; for 3h; To a stirred solution of <strong>[25475-67-6]3-aminoisoquinoline</strong> (75 mg, 0.52 mmol) and 2-({2-[(morpholine-4-carbonyl)-amino]-pyridin-4-ylmethyl}-amino)-benzoic acid methyl ester (149 mg, 0.40 mmol) in DCE (6 mL) at 0°C, under argon, was added trimethylaluminium (2M in toluene, 0.4 mL, 0.8 mmol). The reaction was heated at 120 °C (bath temperature) for 3 hours. On cooling the reaction was diluted with aqueous sodium hydrogencarbonate solution and extracted with dichloromethane. The organic phase was washed with water, dried and concentrated in vacuo. The residue was purified by chromatography on Isolute.(R). flash NH2 (Separtis) (Eluant: EtOAc) to give morpholine-4-carboxylic acid (4-[2-(isoquinolin-3-ylcarbamoyl)-phenylamino]-methyl}-pyridin-2-yl)-amide (60 mg, 32percent) as a resin; 1H-NMR (300 MHz, d6-DMSO) 10.69 (1H, s), 9.21 (1H, s), 9.18 (1H, s), 8.60 (1H, s), 8.16-8.20 (2H, m), 8.10 (1H, d), 7.96 (1H, d), 7.90 (1H, d), 7.82 (1H, d), 7.75 (1H, t), 7.57 (1H, t), 7.28 (1H, t), 6.98 (1H, d), 6.63 (1H, t), 6.58 (1H, d), 4.48 (2H, d), 3.55-3.59 (4H, m), 3.41-3.45 (4H, m) m/z (ES+) 483 [M+H]+, 242.
  • 30
  • [ 25475-67-6 ]
  • [ 69958-52-7 ]
YieldReaction ConditionsOperation in experiment
57% With platinum(IV) oxide; hydrogen; trifluoroacetic acid; for 3h; A mixture of <strong>[25475-67-6]isoquinolin-3-amine</strong> (239 mg, 1.66mmol), platinum(IV)oxide (28mg, 0.123 mmol), and TFA (6mL) was hydrogenated in the Parr apparatus for 3 hrs. Thereaction mixture was filtered with the aid ofethyl acetate. Thefiltrate was evaporated in vacuo and the residue was partitionedbetween 10percent aqueous sodium carbonate and ethylacetate. The layers were separated, the aqueous phase waswashed again with ethyl acetate, and the combined organiclayers were washed with brine and dried over magnesiumsulfate. The drying agent was filtered off and the solventevaporated. The material was purified by colunm chromatographyin ethyl acetate to give 139.8 mg (57percent) 5,6,7,8-tetrahydro<strong>[25475-67-6]isoquinolin-3-amine</strong> as a yellow-white solid.
34% With hydrogen; In ethyl acetate; trifluoroacetic acid; EXAMPLE 64 STR66 3-Amino-5,6,7,8-tetrahydroisoquinoline Using the method of Example 63, Step A, 75 mg of <strong>[25475-67-6]3-aminoisoquinoline</strong> (7.73 mmoles) and 8.7 mg platinum oxide in 2 mL of trifluoroacetic acid was shaken under 40 psi of hydrogen for 3 h. The mixture was filtered and catalyst was washed with ethyl acetate. After concentrating the filtrate, the residue was dissolved in 10 mL of ethyl acetate and washed with 5 mL of saturated aquous sodium bicarbonate. The organic solution was dried (sodium sulfate), decanted, and concentrated to give a yellow syrup. Flash coumn chromatography on 19 g of silica gel, eluding with 600 mL of 50percent ethyl acetate/hexane gave 26.5 mg (34percent yield) of 3-amino-5,6,7,8-tetrahydroisoquinoline as a pale yellow solid. 1 H NMR (400 MHz, CDCl3): delta 7.78 (s, 1H), 6.22 (s, 1H), 4.12 (bs, 2H), 2.65-2.56 (m, 4H), 1.78-1.68 (m, 4H). Mass spectrum (FAB): m/e=149 (M+1)
  • 31
  • [ 25475-67-6 ]
  • [ 689-98-5 ]
  • [ 82117-35-9 ]
YieldReaction ConditionsOperation in experiment
EXAMPLE 2(B) 3-(Piperazin-1-yl)-isoquinoline is prepared from <strong>[25475-67-6]3-aminoisoquinoline</strong> and bis-2-chloroethylamine.
  • 32
  • [ 25475-67-6 ]
  • bis-N,N-(2-chloroethyl)-2-hydroxyethylamine [ No CAS ]
  • 3-(4-(2-Hydroxyethyl)-piperazin-1-yl)-isoquinoline [ No CAS ]
YieldReaction ConditionsOperation in experiment
EXAMPLE 3(B) 3-(4-(2-Hydroxyethyl)-piperazin-1-yl)-isoquinoline is prepared from <strong>[25475-67-6]3-aminoisoquinoline</strong> and bis-N,N-(2-chloroethyl)-2-hydroxyethylamine.
  • 33
  • [ 25475-67-6 ]
  • bis-N,N-(2-chloroethyl)-2-pyridylamine [ No CAS ]
  • 3-(4-(2-Pyridyl)-piperazin-1-yl)-isoquinoline [ No CAS ]
YieldReaction ConditionsOperation in experiment
EXAMPLE 4(B) 3-(4-(2-Pyridyl)-piperazin-1-yl)-isoquinoline is prepared from <strong>[25475-67-6]3-aminoisoquinoline</strong> and bis-N,N-(2-chloroethyl)-2-pyridylamine.
  • 34
  • [ 25475-67-6 ]
  • bis-N,N-(2-chloroethyl)-2-pyrimidinylamine [ No CAS ]
  • 3-(4-(2-Pyrimidinyl)-piperazin-1-yl)-isoquinoline [ No CAS ]
YieldReaction ConditionsOperation in experiment
EXAMPLE 10(B) 3-(4-(2-Pyrimidinyl)-piperazin-1-yl)-isoquinoline is prepared from <strong>[25475-67-6]3-aminoisoquinoline</strong> and bis-N,N-(2-chloroethyl)-2-pyrimidinylamine.
  • 35
  • [ 25475-67-6 ]
  • bis-N,N-(2-chloroethyl)-methylamine [ No CAS ]
  • 3-(4-methylpiperazin-1-yl)-isoquinoline [ No CAS ]
YieldReaction ConditionsOperation in experiment
EXAMPLE 1(B) 3-(4-Methylpiperazin-1-yl)-isoquinoline is prepared from <strong>[25475-67-6]3-aminoisoquinoline</strong> and bis-N,N-(2-chloroethyl)-methylamine.
 

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Technical Information

Categories

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[ 25475-67-6 ]

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