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Chemical Structure| 3875-78-3 Chemical Structure| 3875-78-3

Structure of 3875-78-3

Chemical Structure| 3875-78-3

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Product Details of [ 3875-78-3 ]

CAS No. :3875-78-3
Formula : C9H9BrO
M.W : 213.07
SMILES Code : BrC1=CC=C2OCCCC2=C1
MDL No. :MFCD10698725
Boiling Point : No data available
InChI Key :KPFDABVKWKOIME-UHFFFAOYSA-N
Pubchem ID :10856814

Safety of [ 3875-78-3 ]

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

Computational Chemistry of [ 3875-78-3 ] Show Less

Physicochemical Properties

Num. heavy atoms 11
Num. arom. heavy atoms 6
Fraction Csp3 0.33
Num. rotatable bonds 0
Num. H-bond acceptors 1.0
Num. H-bond donors 0.0
Molar Refractivity 48.29
TPSA ?

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

9.23 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

2.49
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

2.98
Log Po/w (WLOGP)?

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

2.77
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.

2.78
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

3.44
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

2.89

Water Solubility

Log S (ESOL):?

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

-3.44
Solubility 0.077 mg/ml ; 0.000361 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.

-2.84
Solubility 0.31 mg/ml ; 0.00145 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

-3.83
Solubility 0.0318 mg/ml ; 0.000149 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.

-5.48 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)

1.96

Application In Synthesis of [ 3875-78-3 ]

* 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 [ 3875-78-3 ]

[ 3875-78-3 ] Synthesis Path-Downstream   1~34

  • 1
  • [ 56-23-5 ]
  • [ 128-08-5 ]
  • [ 493-08-3 ]
  • [ 94-36-0 ]
  • [ 3875-78-3 ]
  • 3
  • [ 493-08-3 ]
  • [ 3875-78-3 ]
  • 4-bromo-3,4-dihydro-2H-chromene [ No CAS ]
  • 6
  • [ 57083-30-4 ]
  • [ 3875-78-3 ]
  • 7
  • [ 56-23-5 ]
  • [ 57083-30-4 ]
  • [ 94-36-0 ]
  • [ 3875-78-3 ]
  • 8
  • [ 109210-20-0 ]
  • [ 3875-78-3 ]
YieldReaction ConditionsOperation in experiment
82% The mixture was stirred at room temperature for 3 h and then washed with water (20 ml) and brine (20 ml) and the organic layer separated, dried (MgSO4) and evaporated to a thick yellow oil, which was purified by column chromatography using 5% EtOAc in pentane to give the title product (1.3 g, 82%); 1H-NMR (400 MHz, CDCl3) delta: 1.90-1.98 (m, 2H), 2.73 (t, 2H), 4.14 (t, 2H), 6.61 (d, 1H), 7.08-7.15 (m, 2H).
  • 10
  • [ 56-23-5 ]
  • [ 493-08-3 ]
  • [ 7726-95-6 ]
  • [ 3875-78-3 ]
  • 11
  • [ 3875-78-3 ]
  • copper (I)-cyanide [ No CAS ]
  • chromane-6-carbonitrile [ No CAS ]
  • 12
  • [ 67900-64-5 ]
  • P2O5 [ No CAS ]
  • [ 3875-78-3 ]
  • 13
  • [ 20921-00-0 ]
  • [ 3875-78-3 ]
  • 14
  • [ 13997-74-5 ]
  • [ 3875-78-3 ]
  • 18
  • [ 3875-78-3 ]
  • [ 57260-71-6 ]
  • [ 1121771-20-7 ]
YieldReaction ConditionsOperation in experiment
89% With sodium t-butanolate;tris-(dibenzylideneacetone)dipalladium(0); 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; In toluene; at 100℃; for 1h;Inert atmosphere; [Example 6] Synthesis of compound (I-60) a) Synthesis of compound 23 [Show Image] Under the nitrogen atmosphere, toluene (2.7 ml) was added to the known (Khimiya Geterotsiklicheskikh Soedinenii, 1984, No.8, pp. 1035-1038) compound 22 (533 mg, 2.50 mmol), a commercially available compound 21 (466 mg, 2.50 mmol) and sodium tert-butoxide (288 mg, 3.00 mmol) were added, and the system was degassed and replaced with nitrogen. Xantphos (43.4 mg, 0.075 mmol) and Pd2(dba)3 (22.9 mg, 0.025 mmol) were added to react them at 100C for 1 hour. The reaction solution was filtered using Celite and washed with toluene. The filtrate and the washing solution were combined, and concentrated under reduced pressure, and the resulting residue was purified by silica gel column chromatography (hexane-ethyl acetate) to obtain a compound 23 (710 mg, yield 89%). 1H-NMR (CDCl3 / TMS) deltappm: 1.48 (s, 9H), 1.94-2.02 (m, 2H), 2.76 (t, J = 6.5Hz, 2H), 2.98 (t, J = 5.2Hz, 4H), 3.56 (t, J = 5.2Hz, 4H), 4.14 (t, J = 5.2Hz, 2H), 6.63 (s, 1H), 6.73 (s, 1H), 6.73 (s, 1H).
  • 19
  • [ 3875-78-3 ]
  • [ 73183-34-3 ]
  • [ 1002727-88-9 ]
YieldReaction ConditionsOperation in experiment
59% With potassium acetate;(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; In N,N-dimethyl-formamide; at 95℃; for 3h;Inert atmosphere; Step 1. 2-(Chroman-6-yl)-4,4,5,5-tetramethyl-l ,3,2-dioxaborolaneTo a solution of <strong>[3875-78-3]6-bromochroman</strong> (400 mg, 1.88 mmol) in N,N-dimethylformamide (50 mL) was added 4,4,4',4',5,5,5',5'-octamethyl-2,2'-bi(l,3,2-dioxaborolane) (620 mg, 2.44 mmol), KOAc (552.1 mg, 5.63 mmol) and Pd(dppf)Cl2 (155 mg, 0.19 mmol) with stirring for 3 h at 95C maintained with an inert atmosphere of nitrogen in an oil bath. The reaction mixture was diluted with water, extracted with ethyl acetate (80 mL x 3) and the organic layers combined, dried over anhydrous magnesium sulfate, concentrated under vacuum to give the residue, which was applied onto a silica gel column with 1 % ethyl acetate in petroleum ether to afford 2-(chroman-6-yl)-4,4,5,5-tetramethyl-l,3,2-dioxaborolane as colorless oil (320 mg, 59%).*H-NMR (300 MHz, CDC13): delta 7.54 (d, J = 7.5 Hz, 2H), 6.78 (d, J = 8.4 Hz, 1H), 4.19 - 4.23 (t, J = 5.4 Hz, 2H), 2.78 - 2.83 (t, J = 6.3 Hz, 2H), 1.98 - 2.05 (m, 2H), 1.28 (s,12H)
  • 20
  • [ 3875-78-3 ]
  • [ 1396750-69-8 ]
  • 21
  • [ 3875-78-3 ]
  • [ 1396750-76-7 ]
  • 22
  • [ 93670-18-9 ]
  • [ 3875-78-3 ]
  • 23
  • [ 3875-78-3 ]
  • [ 79-19-6 ]
  • [ 70-11-1 ]
  • [ 1421435-12-2 ]
  • 24
  • [ 3875-78-3 ]
  • [ 5614-78-8 ]
  • 25
  • [ 3875-78-3 ]
  • [ 32337-88-5 ]
  • 26
  • [ 3875-78-3 ]
  • 5,5′-tellurobis-6-chromanol [ No CAS ]
  • 27
  • [ 65537-54-4 ]
  • [ 3875-78-3 ]
  • [ 3722-78-9 ]
  • 28
  • [ 3875-78-3 ]
  • 7-bromo-4-chloro-2,3-dihydrobenzofuran-5-carbaldehyde [ No CAS ]
  • (7-bromo-4-chloro-2,3-dihydrobenzofuran-5-yl)(chroman-6-yl)methanol [ No CAS ]
YieldReaction ConditionsOperation in experiment
To a mixture of <strong>[3875-78-3]6-bromo-3,4-dihydro-2H-1-benzopyran</strong> (780 mg, 3.66 mmol, 1.20 equiv) in tetrahydrofuran (10 mL) was added n-BuLi(2.5M) (1.59 mL) at -78 C. The mixture was stirred for 30 minutes. To the resulting mixture was then added a solution of 7-bromo-4-chloro-2,3-dihydrobenzofuran-5-carbaldehyde (797 mg, 3.05 mmol, 1.00 equiv) in tetrahydrofuran (1 mL) at -78 C. The reaction was stirred at -78 C. for 1 h. NH4Cl/H2O was added and the mixture was extracted with EtOAc thrice. The combined extracts were washed with brine and dried over Na2SO4. The mixture was then concentrated and purified by chromatography on silica gel (1:1 PE/EA) to yield (7-bromo-4-chloro-2,3-dihydrobenzofuran-5-yl)(chroman-6-yl)methanol as a white solid.
  • 29
  • [ 3875-78-3 ]
  • 7-bromo-4-methoxy-2,3-dihydrobenzofuran-5-carbaldehyde [ No CAS ]
  • (7-bromo-4-methoxy-2,3-dihydrobenzofuran-5-yl)(chroman-6-yl)methanol [ No CAS ]
YieldReaction ConditionsOperation in experiment
To a mixture of <strong>[3875-78-3]6-bromochroman</strong> (500 mg, 2.35 mmol, 1.30 equiv) in tetrahydrofuran (10 mL) was added n-BuLi (0.94 mL, 1.30 equiv, 2.5N) at -78 C. The mixture was stirred for 30 min at -78 C. After that was added a solution of 7-bromo-4-methoxy-2,3-dihydrobenzofuran-5-carbaldehyde (465 mg, 1.81 mmol, 1.00 equiv) in tetrahydrofuran (5 mL) at -78 C. The reaction was stirred at -78 C. for 1 h. NH4Cl/H2O was added and the mixture was extracted with EtOAc thrice. The combined extracts were washed with brine and dried over Na2SO4. The mixture was then concentrated and purified by chromatography on silica gel (3:1 PE/EA) to yield (7-bromo-4-methoxy-2,3-dihydrobenzofuran-5-yl)(chroman-6-yl)methanol as a yellow oil. MS (ES) m/z: 373[M-OH]+
  • 30
  • [ 3875-78-3 ]
  • 6-(4-(benzyloxy)-5-bromo-2-methoxybenzyl)chromane [ No CAS ]
  • 31
  • [ 3875-78-3 ]
  • (3R,4R,6R)-3,4-bis(benzyloxy)-2-(2-(benzyloxy)-5-(chroman-6-ylmethyl)-4-methoxyphenyl)-6-((benzyloxy)methyl)-5,5-difluorotetrahydro-2H-pyran-2-ol [ No CAS ]
  • 32
  • [ 3875-78-3 ]
  • 6-(4-(benzyloxy)-5-((2S,3S,4R,6R)-3,4-bis(benzyloxy)-6-((benzyloxy)methyl)-5,5-difluorotetrahydro-2H-pyran-2-yl)-2-methoxybenzyl)chromane [ No CAS ]
  • 33
  • [ 3875-78-3 ]
  • (2S,3R,4R,6R)-2-(5-(chroman-6-ylmethyl)-2-hydroxy-4-methoxyphenyl)-5,5-difluoro-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4-diol [ No CAS ]
  • 34
  • [ 3875-78-3 ]
  • [ 1620146-75-9 ]
  • (4-(benzyloxy)-5-bromo-2-methoxyphenyl)(chroman-6-yl)methanol [ No CAS ]
YieldReaction ConditionsOperation in experiment
To a mixture of <strong>[3875-78-3]<strong>[3875-78-3]6-bromochroman</strong>e</strong> (2.0 g, 9.43 mmol, 1.00 equiv) in THF (20 ml_) was added n-BuLi (2.5 M in hexane, 3.76 ml_, 1.00 equiv) dropwise at - 78C. The reaction mixture was stirred at -78C for 30 min. To the mixture was then added a solution of 4-(benzyloxy)-5-bromo-2-methoxybenzaldehyde (2.74 g, 8.56 mmol, 0.91 equiv) in THF (2 ml_) dropwise at -78C. The reaction mixture was stirred for 2 h at -78C. NH4CI/H2O was added and the mixture was extracted with EtOAc thrice. The combined extracts were washed with brine and dried over Na2SC>4. The mixture was concentrated and the resulting residue purified by chromatography on silica gel (3: 1 PE/EA) to yield (4-(benzyloxy)-5-bromo-2-methoxyphenyl)(chroman-6-yl)methanol as a colorless oil.
 

Historical Records

Technical Information

Categories

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[ 3875-78-3 ]

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