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Chemical Structure| 17518-98-8 Chemical Structure| 17518-98-8

Structure of 17518-98-8

Chemical Structure| 17518-98-8

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Product Details of [ 17518-98-8 ]

CAS No. :17518-98-8
Formula : C8H4BrClN2O
M.W : 259.49
SMILES Code : O=C1NC=NC2=C1C=C(Cl)C(Br)=C2
MDL No. :MFCD10000555
InChI Key :RFCXXKWROOFQSI-UHFFFAOYSA-N
Pubchem ID :135711216

Safety of [ 17518-98-8 ]

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

Computational Chemistry of [ 17518-98-8 ] Show Less

Physicochemical Properties

Num. heavy atoms 13
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 55.07
TPSA ?

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

45.75 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

1.61
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

2.09
Log Po/w (WLOGP)?

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

2.34
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.

2.43
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

3.37
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

2.37

Water Solubility

Log S (ESOL):?

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

-3.33
Solubility 0.12 mg/ml ; 0.000463 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.

-2.68
Solubility 0.541 mg/ml ; 0.00209 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

-4.71
Solubility 0.00509 mg/ml ; 0.0000196 mol/l
Class?

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

Moderately 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.

-6.4 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

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<0.0
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)

1.71

Application In Synthesis of [ 17518-98-8 ]

* 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 [ 17518-98-8 ]

[ 17518-98-8 ] Synthesis Path-Downstream   1~3

  • 1
  • [ 150812-32-1 ]
  • [ 122-51-0 ]
  • [ 17518-98-8 ]
  • 2
  • [ 150812-32-1 ]
  • [ 3473-63-0 ]
  • [ 17518-98-8 ]
YieldReaction ConditionsOperation in experiment
100% In ethanol; for 16h;Reflux; To a solution of <strong>[150812-32-1]2-amino-4-bromo-5-chlorobenzoic acid</strong> (500 mg,2mmol) in EtOH (20 mL) at RT, formamidine acetate (620 mg, 6 mmol) was added. The mixture was reflux for 16 hour. The mixture was concentrated in vacuo, and the residue was washed by saturated NaHCO3 aqueous solution, and a mixture of ethylacetate/petroleum ether = 1:2. The solid was dried in vacuo to get the product (520 mg, 100% yield) which was used directly in next step without further purification. ESI-MSm/z: 259.0 [M+H].
In ethanol; for 16h;Reflux; 7-Bromo-6-chloroquinazolin-4-ol To a solution of <strong>[150812-32-1]2-amino-4-bromo-5-chlorobenzoic acid</strong> (500 mg, 2mmol) in EtOH (20 mL) at RT, formamidine acetate (620 mg, 6 mmol) was added. The mixture was reflux for 16 hour. The mixture was concentrated in vacuo, and the residue was washed by saturated NaHCO3 aqueous solution, and a mixture of ethyl acetate/petroleum ether = 1:2. The solid was dried in vacuo to get the product (520 mg, 100% yield) which was used directly in next step without further purification. ESI-MS m/z: 259.0 [M+H]+.
  • 3
  • [ 150812-32-1 ]
  • [ 77287-34-4 ]
  • [ 17518-98-8 ]
YieldReaction ConditionsOperation in experiment
92% at 150 - 170℃; for 5h; To a mixture of 3-chlorotoluene (200 g, 1.58 mol), FeCl3 (9.4 g, 0.06 mol) and CH2Cl2 (1000 mL)stirred at 0~10 C, Br2 (500 g, 3.12 mol) was added slowly, during which the produced gas wasabsorbed by 15% NaOH aqueous solution (2000 mL). After 1 h of continued vigorous stirring, water(100 mL) was added and the mixture was adjusted to pH 8.0~10.0 with 10% aqueous NaOH (200 mL).The organic layer was separated and concentrated to dryness under vacuum to give a solid (95.7%, m.p.95~96 C), 426 g of which was added to a mixture of water (2000 mL), pyridine (200 mL) and KOH(112 g, 2.0 mol) and heated. When the interior temperature reached 80 C, KMnO4 (800 g, 5.0 mol) wasadded in portions, and the mixture was refluxed until complete consumption of the KMnO4. Then thesolution was filtered, the precipitate was washed with 10% KOH a.q. (1000 mL). The filtrates werecombined, and then vacuum evaporated to remove the pyridine and form a turbid solution, whichneeded to be filtered again. The fresh filtrate was acidified with concentrated HCl (360 mL) to pH 3~4.Then the precipitate was filtered, dried and crushed (80%, m.p. 170~171 C). A portion (340 g) wasdissolved in 25% NH3-H2O (1700 mL). To the solution, Cu2O was added in batches at 30~40 C. Afterabout 5 h of stirring, the solution without NH3 gas was diluted and acidified. Then the solid was filtered, washed, dried (yield 96%, m.p. 248~249 C) and 250 g was dissolved in 1500 mL of formamide,maintained at 150~170 C for 5 h. The solution was allowed to cool to R.T., and the precipitate wasfiltered and washed to give a white solid (92%, m.p. 306~307 C). Thus, 2 was succesfully obtained inan overall yield of 67%. IR (KBr), (cm1): 3188.6, 1643.4 (NH), 1680.3 (C=O); ESI-MS (m/z): 256.9[M - H]-, 258.9 [M + 2 - H]; 1H-NMR (300 MHz, DMSO-d6), delta (ppm): 12.50 (br, 1H), 8.15 (s, 1H),8.14 (s, 1H), 8.05 (s, 1H).
 

Historical Records

Technical Information

• Acyl Group Substitution • Alkyl Halide Occurrence • Baeyer-Villiger Oxidation • Barbier Coupling Reaction • Baylis-Hillman Reaction • Bucherer-Bergs Reaction • Chan-Lam Coupling Reaction • Clemmensen Reduction • Complex Metal Hydride Reductions • Corey-Bakshi-Shibata (CBS) Reduction • Corey-Chaykovsky Reaction • Fischer Indole Synthesis • General Reactivity • Grignard Reaction • Henry Nitroaldol Reaction • Hiyama Cross-Coupling Reaction • Horner-Wadsworth-Emmons Reaction • Hydride Reductions • Kinetics of Alkyl Halides • Kumada Cross-Coupling Reaction • Lawesson's Reagent • Leuckart-Wallach Reaction • McMurry Coupling • Meerwein-Ponndorf-Verley Reduction • Passerini Reaction • Paternò-Büchi Reaction • Petasis Reaction • Peterson Olefination • Pictet-Spengler Tetrahydroisoquinoline Synthesis • Preparation of Aldehydes and Ketones • Preparation of Amines • Prins Reaction • Reactions of Aldehydes and Ketones • Reactions of Alkyl Halides with Reducing Metals • Reactions of Amines • Reactions of Dihalides • Reformatsky Reaction • Robinson Annulation • Schlosser Modification of the Wittig Reaction • Schmidt Reaction • Specialized Acylation Reagents-Carbodiimides and Related Reagents • Specialized Acylation Reagents-Ketenes • Stille Coupling • Stobbe Condensation • Substitution and Elimination Reactions of Alkyl Halides • Suzuki Coupling • Tebbe Olefination • Ugi Reaction • Wittig Reaction • Wolff-Kishner Reduction

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