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Chemical Structure| 877-03-2 Chemical Structure| 877-03-2
Chemical Structure| 877-03-2

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CAS No.: 877-03-2

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Product Details of [ 877-03-2 ]

CAS No. :877-03-2
Formula : C9H6BrNO
M.W : 224.05
SMILES Code : C1=C2C(=CC=C1Br)[NH]C=C2C=O
MDL No. :MFCD00152016
InChI Key :PEENKJZANBYXNB-UHFFFAOYSA-N
Pubchem ID :70137

Safety of [ 877-03-2 ]

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

Calculated chemistry of [ 877-03-2 ] Show Less

Physicochemical Properties

Num. heavy atoms 12
Num. arom. heavy atoms 9
Fraction Csp3 0.0
Num. rotatable bonds 1
Num. H-bond acceptors 1.0
Num. H-bond donors 1.0
Molar Refractivity 51.39
TPSA ?

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

32.86 ?2

Lipophilicity

Log Po/w (iLOGP)?

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

1.59
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

2.2
Log Po/w (WLOGP)?

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

2.74
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.

1.6
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

3.33
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

2.29

Water Solubility

Log S (ESOL):?

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

-3.1
Solubility 0.176 mg/ml ; 0.000787 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.

-2.52
Solubility 0.67 mg/ml ; 0.00299 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

-4.09
Solubility 0.0182 mg/ml ; 0.0000811 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.

-6.1 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

1.0 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)

 1.22

Application In Synthesis of [ 877-03-2 ]

* 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 [ 877-03-2 ]

[ 877-03-2 ] Synthesis Path-Downstream   1~7

  • 1
  • [ 877-03-2 ]
  • [ 74-88-4 ]
  • [ 10102-94-0 ]
YieldReaction ConditionsOperation in experiment
96% 5-bromoindole-3-carbaldehyde 2 (10 mmol) was dissolved in acetonitrile and to this powdered NaOH (5 mmol) was added and stirred for 10 min. Methyl iodide (10 mmol) was added dropwise to the reaction mixture. After 3h of stirring at room temperature, the solvent was completely evaporated. It was extracted with ethyl acetate (3x20 ml) and dried over Na2SO4. The combined organic layer was concentrated in vacuo to give a light yellow color solid purified by recrystallization with diethyl ether. Pale yellow solid; Yield: 96%; mp 122-124 C; IR (KBr) numax 3103, 2923, 2813, 1700, 1654. 1533, 1467, 1369, 1083, 799, 726; 1H NMR (DMSO-d6, 300 MHz) delta 9.88 (s, 1H), 8.33 (s, 1H), 8.23 (d, J = 1.70 Hz, 1H), 7.60 (d, J = 8.68 Hz, 1H), 7.48 (dd, J = 2.08, 8.87 Hz, 1H), 3.89 (s, 3H); TOF-HRMS (m/z) for C10H8BrNO, calculated 237.9862, observed 237.9855 [M+1] +
91% With sodium hydride; In tetrahydrofuran; at 0℃; for 1.83333h; 5-Bromo-1-methyl-lH-indole-3-carbaldehyde; 5-Bromo-1H-indole-3-carbaldehyde (4.8 mmol, 1076 mg) was dissolved in 15 mL of THF and the solution was cooled to 0 C under N2-athmosphere. Sodium hydride (11.7 mmol, 280 mg) was added carefully in portions and iodomethane (8.1 mmol, 1150 mg) was added. The mixture was stirred at 0 C for 1 h. More iodomethane (8.1 mmol, 1150 mg) was added and the stirring continued for 50 min. The mixture was poured over ice and the resulting slurry was extracted with EtOAc. The organic layer was dried over Na2SO4, filtered and evaporated. This gave 1037 mg (91 %) of the title product. 'H NMR (400 MHz, MeOH-d4) 8 9.82 (s, 1H), 8,29 (m, 1H), 8.06 (s, 1H), 7.43 (m, 2H), 3.89 (s, 3H)
81% General procedure: To a suspension of NaH 60% in oil (2.25 equiv.) in dry DMF(0.8 mL/mmol) was added, at 0 C and under nitrogen atmosphere, a solution of indolecarboxaldehyde (1 equiv.) in dry DMF (2.5 mL/mmol). After stirring for 30 min at rt, alkyl halide (1.0e3.0 equiv.)was slowly added. After stirring overnight, the reaction wasquenched by addition of water and the product was extracted withdiethyl ether. The organic layer was dried over MgSO4, filtered offand concentrated under vacuum. The crude product was purifiedby column chromatography on silica gel.
General procedure: Compounds 7-9 were synthesized from the corresponding compounds 4-6. A solution of compounds 4-6 (60 mmol) in THF (30 mL) were added dropwise to a suspension of NaH (3.60 g, 60% dispersion in mineral oil, 150 mmol) in THF (30 mL) at 0 C. After stirring for 15 min, the heterogeneous mixture was treated with iodomethane (5.04 mL, 79.2 mmol) at room temperature for 1 h. Then the reaction mixture was cooled to 0 C, quenched with saturated NH4Cl (60 mL), and extracted with ether (3 * 50 mL). The organic layers were combined, washed with brine, dried over anhydrous Na2SO4 and concentrated in vacuo to give 1-Methyl-1H-indole-3-carboxaldehyde (7-9), a light brown solid. The crude 7-9 were used in the next step without any further purification.
With sodium hydride; In tetrahydrofuran; at 0 - 20℃; for 24h; General procedure: The relevant indole-3-carboxaldehyde (2a-c, 10 mmol) in THF(25 mL) was added dropwise to a stirred solution of NaH (25 mmol)in THF (25 mL) at 0 C and CH3I (13.2 mmol) was added after 15 minstirring. The reaction mixturewas moved to room temperature andstirred for further 24 h. Then the solvent was removed in vacuumand the residue was extracted by ethyl acetate. The organic layerwas washed with brine, dried over anhydrous sodium sulfate,filtered and concentrated in vacuum. Recrystallization affordedcompound 3a-c with yields of 93.4-97.5%.

  • 2
  • [ 877-03-2 ]
  • [ 105-58-8 ]
  • [ 10102-94-0 ]
  • 3
  • [ 877-03-2 ]
  • [ 77-78-1 ]
  • [ 10102-94-0 ]
  • 4
  • [ 877-03-2 ]
  • [ 75-18-3 ]
  • [ 10102-94-0 ]
  • 5
  • [ 877-03-2 ]
  • DMS [ No CAS ]
  • [ 10102-94-0 ]
  • 6
  • [ 5654-97-7 ]
  • [ 877-03-2 ]
  • C16H10BrN3O [ No CAS ]
YieldReaction ConditionsOperation in experiment
With sodium ethanolate; In ethanol; at 20℃; General procedure: Various aldehydes (1.0 equiv) were added to stirred solutions of indolin-2-one, 5-chloroindolin-2-one or <strong>[5654-97-7]7-azaoxindole</strong> (1.0equiv) in absolute ethanol. After stirring at room temperature for 5 min NaOEt/EtOH (0.5 mL) was added and the mixture was then stirred at room temperature overnight. The solvent was then removed under vacuum. The residue was washed with saturated sodium chloride solution and then extracted with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate and concentrated under vacuum. The solid part was purified by chromatography over silica gel using ethyl acetate/petroleum ether as the eluent to afford desired compounds 1a-1g, 2a, 3a.
  • 7
  • [ 877-03-2 ]
  • [ 10406-06-1 ]
YieldReaction ConditionsOperation in experiment
65% With potassium permanganate; water; In acetone; at 20℃; for 6.5h; General procedure: 6 g of substituted indole-3-aldehydes (10a-b) was dissolved in 600 mL of acetone.To this KMnO4 (9 g, 56 mmol) soluble in 180 mL water was added slowly for 30 min and the reaction mixture was allowed for stirring for 6 h at room temperature. After it was quenched by 6 mL of 30% H2O2, filtered and concentrated on rotavapor. Now it was solidified by conc.HCl, filtered, dried and recrystallized from methanol solvent which then afforded 5-substituted indole-3-carboxylic acids 11a-b. 5-Bromo-1H-indole-3-carboxylic acid (11b) (Yoo et al.2012) yellow color solid. yield: 65%. m.p: 230-232 C; IR (KBr): 3349, 2914, 2574, 1643 cm-1; 1H NMR (400 MHz, DMSO-d6): delta 7.30 (1H, m, Ar-H), 7.435 (1H, d, J = 8.8 Hz, Ar-H), 8.05 (1H, d, J = 2.8 Hz, Ar-H), 8.12 (1H, d, J = 2 Hz, Ar-H), 12.01 (1H, bs, -NH), 12.13 (1H, s, -OH) ppm; 13C NMR (400 MHz, DMSO-d6): delta 107.06, 113.79, 114.28, 122.68, 124.70, 127.79, 133.45, 135.16, 165.45 ppm; HRMS calculated for C9H6NO2BrNa: 261.94741; found: 261.94711.
65% With potassium permanganate; In acetone; at 20℃; for 6.5h; General procedure: 6 g of substituted indole e 3e aldehydes (6a-6b) were respectively dissolved in 600 mL ofacetone. KMnO4 solution (9 g KMnO4 soluble in 180 mL water) wasadded dropwise for 30 min to this reaction mixture and the reactionmass was stirred for 6 h at room temperature. The reactionmixture was then quenched by adding 20 mL of 30% H2O2, filteredand concentrated on rotavapor. Later, it was acidified by conc. HCl,filtered, dried and recrystallized from methanol. 5 e substitutedindole e 3 e carboxylic acids 7a-7b was obtained as the product.
 

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