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Chemical Structure| 151230-42-1 Chemical Structure| 151230-42-1

Structure of 151230-42-1

Chemical Structure| 151230-42-1

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Product Details of [ 151230-42-1 ]

CAS No. :151230-42-1
Formula : C8H6BrNO
M.W : 212.04
SMILES Code : CC1=NC2=C(O1)C=C(Br)C=C2
MDL No. :MFCD06659628
InChI Key :ZCGXHOLCXPKKBO-UHFFFAOYSA-N
Pubchem ID :10036077

Safety of [ 151230-42-1 ]

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

Computational Chemistry of [ 151230-42-1 ] Show Less

Physicochemical Properties

Num. heavy atoms 11
Num. arom. heavy atoms 9
Fraction Csp3 0.12
Num. rotatable bonds 0
Num. H-bond acceptors 2.0
Num. H-bond donors 0.0
Molar Refractivity 46.68
TPSA ?

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

26.03 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

2.42
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

2.85
Log Po/w (WLOGP)?

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

2.9
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.

2.06
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

3.02
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

2.65

Water Solubility

Log S (ESOL):?

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

-3.56
Solubility 0.059 mg/ml ; 0.000278 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.

-3.06
Solubility 0.187 mg/ml ; 0.00088 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

-4.16
Solubility 0.0147 mg/ml ; 0.0000692 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.

-5.57 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<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)

2.29

Application In Synthesis of [ 151230-42-1 ]

* 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 [ 151230-42-1 ]

[ 151230-42-1 ] Synthesis Path-Downstream   1~35

  • 1
  • [ 16394-40-4 ]
  • [ 151230-42-1 ]
  • 2
  • [ 151230-42-1 ]
  • [ 107-13-1 ]
  • [ 1193309-44-2 ]
YieldReaction ConditionsOperation in experiment
With sodium acetate;palladium diacetate; tris-(o-tolyl)phosphine; In N,N-dimethyl-formamide; at 150.0℃; for 1.0h;Inert atmosphere; Microwave irradiation; A mixture of 1.0 mmol of <strong>[151230-42-1]6-bromo-2-methyl-benzooxazole</strong> [151230-42-1], 2 mmol of acrylonitrile, 1.0 mmol of sodium acetate, 0.1 mmol of Pd(OAc)2 and 0.2 mmol of P(o-tolyl)3 in 3 ml of DMF under N2 atmosphere is treated at 1500C for 1 h in the <n="35"/>microwave. The reaction is filtered through a short plug of Hyflow. The solvent of the filtarate is concentrated by evaporation. The title compound is obtained from the residue by chromatography on Varian Mega Bond Elut (Si) eluting with EtOAc to a mixture of petroleum ether/EtOAc 10:1 to afford the title compound as a mixture of cis and trans geometric isomers. Rf = 0.15 (CH2CI2-MeOH 100:2); Rt = 4.48.
  • 3
  • [ 151230-42-1 ]
  • [ 98-80-6 ]
  • [ 61309-99-7 ]
YieldReaction ConditionsOperation in experiment
81% With potassium phosphate;tetrakis(triphenylphosphine) palladium(0); In 1,4-dioxane; water; at 150.0℃; for 0.666667h;Inert atmosphere; Microwave irradiation; To a solution of Compound 24 (480 mg, 2.264 mmol) in 1,4-dioxane (7 mL) were added TETRAKIS(TRIPHENYLPHOSPHINE) PALLADIUM (0) (183 mg, 0.158 mmol), PHENYLBORONIC ACID (414 mg, 3.40 mmol) and 2M aqueous potassium phosphate solution (3.4 ml, 6.8 mmol) under nitrogen atmosphere at room temperature, then the reaction mixture was stirred at 150 C. for 40 minutes under microwave irradiation. To the reaction solution was added 1N hydrochloric acid, then the reaction solution was extracted with ethyl acetate. The extraction was washed with brine and dried over sodium sulfate. The solvent was removed under reduced pressure. The obtained residue was purified by column chromatography to give Compound 25 (385 mg, 81%).Compound 25; 1H-NMR (DMSO-d6) delta: 2.64 (s, 3H), 7.38 (dd, J=8.4, 2.0 Hz, 1H), 7.47-7.51 (m, 2H), 7.64 (d, J=2.0 Hz, 1H), 7.77-7.75 (m, 3H), 7.96 (s, 1H)
  • 4
  • [ 151230-42-1 ]
  • [ 98-80-6 ]
  • [ 1312435-75-8 ]
  • 5
  • [ 1445-45-0 ]
  • [ 38191-34-3 ]
  • [ 151230-42-1 ]
YieldReaction ConditionsOperation in experiment
85% With acetic acid; for 0.5h;Reflux; To an AcOH (1.521 mul, 0.027 mmol) were added 2-amino-5-bromophenol 23 (500 mg, 2.66 mmol) and 1,1,1-trimethoxyethane (600 mul, 4.79 mmol), then the reaction mixture was refluxed for 30 minutes. To the reaction solution was added water, then the reaction solution was extracted with ethyl acetate. The extraction was washed with brine and dried over magnesium sulfate. The solvent was removed under reduced pressure. The obtained residue was purified by column chromatography to give Compound 24 (481 mg, 85%).Compound 24; 1H-NMR (CDCl3) delta: 2.63 (s, 3H), 7.42 (dd, J=8.62, 2.03 Hz, 1H), 7.51 (d, J=8.62 Hz, 1H), 7.64 (d, J=2.03 Hz, 1H).
  • 6
  • [ 38191-34-3 ]
  • [ 78-39-7 ]
  • [ 151230-42-1 ]
YieldReaction ConditionsOperation in experiment
88.5% With 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione; at 25.0℃; for 0.166667h; 2-Amino-5-bromophenol (561 mg, 3.00 mmol)Was added to triethyl orthoacetate (656 muL, 3.6 mmol),1,3-Dibromo-5,5-dimethylhydantoin (17.2 mg, 6.00 × 10 -2 mmol) was added,And the mixture was stirred at room temperature for 10 minutes.And extracted with ethyl acetate (50 mL × 2).The organic layer was washed with saturated brine,After dehydration with anhydrous magnesium sulfate,The solvent was distilled off under reduced pressure,The residue was subjected to silica gel column chromatography using ethyl acetate / hexane (1/4 (volume ratio)) as an elution solvent,Compound 16 was obtained in a yield of 560 mg (88.5%).
65% With acetic acid; for 0.5h;Reflux; To 2-amino-5- bromophenol ( l .OOg, 5.32 mmol) , acetic acid ((0.006 ml) and triethylorthoacetate ( 1.75 ml, 9.58 mmol) were added and refluxed for 3o min. The reaction mixture was quenched with water, extracted with ethyl acetate, dried over sodium sulphate and concentrated. The crude product was column chromatographed with ethyl acetate : petroleum ether to afford the title compound as a orange solid ((0.756 g, 65%). -NMR (delta ppm, CDC13, 400 MHz): delta 7.64 (d, 7 = 1.7 Hz, 1 H), 7.51 (d, 7 = 8.4 Hz, 1 H), 7.43 (dd, 7 = 8.4, 1.7 Hz, 1 H), 2.67 (s, 3H).
65% With acetic acid; for 0.5h;Reflux; Intermediate 126 6-bromo-2-methylbenzo[d]oxazole: To 2-amino-5-bromophenol (1.00 g, 5.32 mmol), acetic acid ((0.006 ml) and triethylorthoacetate (1.75 ml, 9.58 mmol) were added and refluxed for 30 min. The reaction mixture was quenched with water, extracted with ethyl acetate, dried over sodium sulphate and concentrated. The crude product was column chromatographed with ethyl acetate: petroleum ether to afford the title compound as a orange solid ((0.756 g, 65%). 1H-NMR (delta ppm, CDCl3, 400 MHz): delta 7.64 (d, J=1.7 Hz, 1H), 7.51 (d, J=8.4 Hz, 1H), 7.43 (dd, J=8.4, 1.7 Hz, 1H), 2.67 (s, 3H).
  • 7
  • [ 151230-42-1 ]
  • 7-fluoro-2-(2-methylbenzo[d]oxazol-6-yl)-4H-pyrido[1,2-a]pyrimidin-4-one [ No CAS ]
  • 8
  • [ 151230-42-1 ]
  • 2-(2-methyl-1,3-benzoxazol-6-yl)-7-(4-methylpiperazin-1-yl)-4H-pyrido[1,2-a]pyrimidin-4-one [ No CAS ]
  • 9
  • [ 151230-42-1 ]
  • [ 73183-34-3 ]
  • [ 1408089-23-5 ]
YieldReaction ConditionsOperation in experiment
100% With dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; potassium acetate; In 1,4-dioxane; at 85.0℃; for 15.0h;Inert atmosphere; [001255] Part 2: A mixture of <strong>[151230-42-1]6-bromo-2-methylbenzo[d]oxazole</strong> (1.06 g, 5.0 mmol), 4,4,4?,4?,5 ,5 ,5?,5?-octamethyl-2,2?-bi( 1,3 ,2-dioxaborolane) (1.40 g, 5.5 mmol), KOAc (1.47 g, 15 mmol) and Pd(dppf)C12.CH2C12 (122 mg, 0.15 mmol) in dioxane ( 8 mL) was degassed and heated under N2 at 85 C. After 15 hours, the mixture was diluted with EtOAc, filtered through celite and concentrated. The residue was chromatographed to give 2-methyl-6-(4,4,5,5- tetramethyl- 1,3 ,2-dioxaborolan-2-yl)benzo [d]oxazole as a light orange solid (1 .30 g, 100%), MS m/z 260.4 [M+H].
34% A suspension of <strong>[151230-42-1]6-bromo-2-methylbenzo[d]oxazole</strong> (1 equiv), bis(pinacolato)diboron (2 equiv), potassium acetate (3 equiv) in 1,4-dioxane was degassed with argon for 10 min. Then, 1,1?-bis(diphenylphosphino)ferrocene palladium (II) chloride dichloromethane adduct (0.05 equiv) was added and the solution was further degassed with argon for 10 min. The reaction mixture was heated at 110 C. overnight. The reaction mixture was cooled to room temperature, the solvent was removed under reduced pressure and the crude product was purified by column chromatography (silica gel 100-200 mesh 0-10% ethyl acetate in n-hexane as eluent) to give the title compound. (Yield: 34%), MS (ESI) m/z 260 [M+1]1.
  • 10
  • [ 151230-42-1 ]
  • [ 1541185-68-5 ]
  • 11
  • [ 151230-42-1 ]
  • [ 138128-80-0 ]
YieldReaction ConditionsOperation in experiment
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile); In tetrachloromethane; at 90.0℃; for 16.0h; A mixture of 114-1 (1.00 g, 4.72 mmol), NBS (840 mg, 4.72 mmol), and AIBN (350 mg) in CCl4 (20 mL) is heated at 90 C for 16 h. The reaction is cooled to ambient temperature, diluted with DCM (100 mL), washed with H2O (2 x 75 mL), dried over Na2SO4, filtered and concentrated. The residue is purified by flash chromatography (0- 50% EtOAc in heptane) to give 114-2.
  • 12
  • [ 151230-42-1 ]
  • [ 1541189-31-4 ]
  • 13
  • [ 151230-42-1 ]
  • [ 1541189-32-5 ]
  • 18
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  • [ 1618663-43-6 ]
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  • [ 1618663-44-7 ]
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  • [ 1618663-46-9 ]
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  • [ 1618663-47-0 ]
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  • [ 1618663-52-7 ]
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  • [ 151230-42-1 ]
  • [ 1618660-00-6 ]
  • [ 1618660-01-7 ]
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  • [ 1618663-74-3 ]
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  • [ 1618663-79-8 ]
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  • [ 1618663-80-1 ]
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  • [ 1618662-56-8 ]
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  • [ 151230-42-1 ]
  • [ 1672673-01-6 ]
 

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