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Chemical Structure| 7752-78-5 Chemical Structure| 7752-78-5

Structure of 7752-78-5

Chemical Structure| 7752-78-5

5-Bromo-2-methylpyrimidine

CAS No.: 7752-78-5

4.5 *For Research Use Only !

Cat. No.: A459858 Purity: 98%

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Product Details of [ 7752-78-5 ]

CAS No. :7752-78-5
Formula : C5H5BrN2
M.W : 173.01
SMILES Code : BrC1=CN=C(N=C1)C
MDL No. :MFCD07375143
InChI Key :NEDJTEXNSTUKHW-UHFFFAOYSA-N
Pubchem ID :14387744

Safety of [ 7752-78-5 ]

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

Computational Chemistry of [ 7752-78-5 ] Show Less

Physicochemical Properties

Num. heavy atoms 8
Num. arom. heavy atoms 6
Fraction Csp3 0.2
Num. rotatable bonds 0
Num. H-bond acceptors 2.0
Num. H-bond donors 0.0
Molar Refractivity 34.7
TPSA ?

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

25.78 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

1.83
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

1.29
Log Po/w (WLOGP)?

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

1.55
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.

0.72
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

2.08
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

1.49

Water Solubility

Log S (ESOL):?

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

-2.28
Solubility 0.907 mg/ml ; 0.00524 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.

-1.43
Solubility 6.41 mg/ml ; 0.037 mol/l
Class?

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

Very 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

-2.89
Solubility 0.224 mg/ml ; 0.0013 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.

-6.44 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)

1.43

Application In Synthesis of [ 7752-78-5 ]

* 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 [ 7752-78-5 ]

[ 7752-78-5 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 114078-88-5 ]
  • [ 143-37-3 ]
  • [ 7752-78-5 ]
  • 2
  • [ 7752-78-5 ]
  • [ 1034924-06-5 ]
YieldReaction ConditionsOperation in experiment
With n-butyllithium; Triisopropyl borate; In tetrahydrofuran; toluene; at -78℃; for 1h;Inert atmosphere; Into a 1 0-L 4-neck round-bottom flask purged and maintained with an inert atmosphere of nitrogen was placed a solution of 5-bromo-2-iodopyrimidine (590 g, 2.07 mol) in THE (3 L). This was followed by dropwise addition of 1 M solution of dimethyl zinc (3.11 L, 3.11 mol) with stirring at 0°C. To this was added Pd(PPh3)4 (120 g, 104 mmol). The resulting solution was stirred for 3 h at 0°C, then quenched by the addition of 600 mL of aqueous NH4C1. The resultingsolution was extracted with 2 x 1.5 L of ethyl acetate. The organic extracts were combined, dried over anhydrous magnesium sulfate and concentrated under vacuum. The residue was applied onto a silica gel colunm and eluted with ethyl acetate/petroleum ether (1:50) to provide 5-bromo-2-methylpyrimidine. Into a 1 0-L 4-neck round-bottom flask purged and maintained with an inert atmosphereof nitrogen was placed a solution of 5-bromo-2-methylpyrimidine (184 g, 1.06 mol) and B(iPrO) 3 (240 g, 1.28 mol) in THE/toluene (3/3 L). This was followed by the dropwise addition of a 2.5 M solution of n-BuLi (510 mL, 1.28 mol) with stirring at -78°C. The resulting solution was stirred for 1 hat -78°C, then quenched by the addition of 200 nit of aqueous NH4CI. The organic phase was dried and concentrated under vacuum. The aqueous phase was adjusted to pH4 with AcOH. The solid was collected by filtration and dried in an oven under reduced pressure providing (2-methylpyrimidin-5 -yl)boronic acid.
With n-butyllithium; Triisopropyl borate; In tetrahydrofuran; toluene; at -78℃; for 1h;Inert atmosphere; Into a 10-L 4-neck round-bottom flask purged and maintained with an inert atmosphere of nitrogen was placed a solution of 5-bromo-2-methylpyrimidine (184 g, 1.06 mol) and B (i-PrO)3(240 g, 1.28 mol) in THF/toluene (3/3 L) . This was followed by the dropwise addition of a 2.5 M solution of n-BuLi (510 mL, 1.28 mol) with stirring at -78 . The resulting solution was stirred for 1 h at -78 , then quenched by the addition of 200 mL of aqueous NH4Cl. The organic phase was dried and concentrated under vacuum. The aqueous phase was adjusted to pH 4 with AcOH. The solid was collected by filtration and dried in an oven under reduced pressure providing (2-methylpyrimidin-5-yl) boronic acid.
 

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Technical Information

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[ 7752-78-5 ]

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Related Parent Nucleus of
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