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Chemical Structure| 29274-24-6 Chemical Structure| 29274-24-6
Chemical Structure| 29274-24-6

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CAS No.: 29274-24-6

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Product Details of [ 29274-24-6 ]

CAS No. :29274-24-6
Formula : C6H4ClN3
M.W : 153.57
SMILES Code : ClC2=NC1=CC=N[N]1C=C2
MDL No. :MFCD04035683
InChI Key :WEPRLWNMBTYGGD-UHFFFAOYSA-N
Pubchem ID :21071759

Safety of [ 29274-24-6 ]

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

Calculated chemistry of [ 29274-24-6 ] Show Less

Physicochemical Properties

Num. heavy atoms 10
Num. arom. heavy atoms 9
Fraction Csp3 0.0
Num. rotatable bonds 0
Num. H-bond acceptors 2.0
Num. H-bond donors 0.0
Molar Refractivity 38.0
TPSA ?

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

30.19 ?2

Lipophilicity

Log Po/w (iLOGP)?

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

1.56
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.

1.38
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.

1.18
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

1.16
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

1.31

Water Solubility

Log S (ESOL):?

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

-2.27
Solubility 0.823 mg/ml ; 0.00536 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.

-1.52
Solubility 4.6 mg/ml ; 0.0299 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

-2.31
Solubility 0.747 mg/ml ; 0.00486 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.

-6.32 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)

 1.7

Application In Synthesis of [ 29274-24-6 ]

* 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 [ 29274-24-6 ]

[ 29274-24-6 ] Synthesis Path-Downstream   1~3

  • 1
  • [ 1218935-59-1 ]
  • [ 29274-24-6 ]
  • [ 1223404-89-4 ]
YieldReaction ConditionsOperation in experiment
74% With potassium fluoride; In dimethyl sulfoxide; at 180℃; for 2h; A mixture of 5-chloropyrazolo[1,5-a]pyrimidine (1.18 g, 7.68 mmol), <strong>[1218935-59-1](R)-2-(2,5-difluorophenyl)pyrrolidine</strong> (1.51 g, 8.22 mmol) and KF (2.32 g, 39.1 mmol) in DMSO (26 mL) was heated at 180 C. for 2 hours. The reaction mixture was cooled to room temperature and poured into water. The mixture was stirred for additional 30 min at room temperature. A precipitated solid was collected by filtration and dried under vacuum to afford (R)-5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine (1.70 g, 74%) as a yellow solid. 1H-NMR (DMSO-d6, Varian, 400 MHz): delta 1.88-2.06 (3H, m), 2.33-2.45 (1H, m), 3.56-3.70 (1H, m), 3.90-4.00 (1H, m), 5.38 (1H, s), 5.98 (1H, s), 6.10-6.50 (1H, m), 6.85-6.91 (1H, m), 7.10-7.15 (1H, m), 7.26-7.32 (1H, m), 7.81 (1H, d, J=1.6 Hz), 8.60 (1H, s).
68% With N-ethyl-N,N-diisopropylamine; In butan-1-ol; at 160℃;Sealed tube; Preparation B; Preparation of (R)-5-(2-(2,5-difluorophenyl)pyrrolidin-l-yl)pyrazolo?,5-alpyrimidin-3- amine; [00381] Step A: Preparation of (RV5-(2-(2.5-difluorophenyr)pyrrolidin-l- yPpyrazolo [ 1 ,5 -a"|pyrimidine; In a pressure reaction tube was added 5-chloropyrazolo[l,5- a]pyrimidine (4.2 g, 27 mmol), <strong>[1218935-59-1](R)-2-(2,5-difluorophenyl)pyrrolidine</strong> (Preparation A; 5.3 g, 29 mmol), anhydrous n-butanol (5 ml, 55 mmol), and DIEA (9.5 ml, 55 mmol). The yellowish suspension was sealed and heated in an oil bath (160 0C) overnight. The reaction was cooled to ambient temperature, diluted with EtOAc (250 mL), and filtered, rinsing the solid with EtOAc. The filtrate (330 mL) was washed with water (2 x 150 mL), brine (100 mL), concentrated, and purified by silica chromatography, eluting with 2:1 EtOAc/hexanes to give the product as a bright yellowish solid (5.6 g, 68% yield).
  • 2
  • [ 67-56-1 ]
  • [ 201230-82-2 ]
  • [ 29274-24-6 ]
  • [ 1453176-67-4 ]
YieldReaction ConditionsOperation in experiment
52% With bis-triphenylphosphine-palladium(II) chloride; triethylamine; at 100.0℃; under 7600.51 Torr; A mixture of 5-chloro-pyrazolo[1,5-a]pyrimidine (2 g, 13.02 mmol, 1 .00 equiv), triethylamine (4 mL), methanol (80 mL), and bis(triphenylphosphine)palladium(U) dichloride (1 g, 1.42 mmol, 0.1 1 equiv) was stirred in a 100-mL pressure reactor overnight at 100 "C under 10 atmospheres of carbon monoxide. The reaction mixture was cooled to rt then concentrated under vacuum. The residue was purified on a silica gel column eluted with ethyl acetate/petroleum ether (1 :5) to yield 1 .2 g (52%) of the title compound as a light yellow solid. LC/MS (Method I, ESI): RT= 1 .09 min, m/z 178.0 [M+H]
52% With triethylamine; at 100.0℃; under 7600.51 Torr;Sealed tube; A mixture of 5-chloro-pyrazolo[1,5-a]pyrimidine (2 g, 13.02 mmol, 1 .00 equiv), triethylamine (4 mL), methanol (80 mL), and bis(triphenylphosphine)palladium(U) dichloride (1 g, 1.42 mmol, 0.1 1 equiv) was stirred in a 100-mL pressure reactor overnight at 100 "C under 10 atmospheres of carbon monoxide. The reaction mixture was cooled to rt then concentrated under vacuum. The residue was purified on a silica gel column eluted with ethyl acetate/petroleum ether (1 :5) to yield 1 .2 g (52%) of the title compound as a light yellow solid. LC/MS (Method I, ESI): RT= 1 .09 min, m/z 178.0 [M+H]
52% With bis-triphenylphosphine-palladium(II) chloride; triethylamine; at 100.0℃; under 7600.51 Torr;Sealed tube; A mixture of 5-chloro-pyrazolo[1,5-a]pyrimidine (2 g, 13.02 mmol, 1 .00 equiv), triethylamine (4 mL), methanol (80 mL), and bis(triphenylphosphine)palladium(U) dichloride (1 g, 1.42 mmol, 0.1 1 equiv) was stirred in a 100-mL pressure reactor overnight at 100 "C under 10 atmospheres of carbon monoxide. The reaction mixture was cooled to rt then concentrated under vacuum. The residue was purified on a silica gel column eluted with ethyl acetate/petroleum ether (1 :5) to yield 1 .2 g (52%) of the title compound as a light yellow solid. LC/MS (Method I, ESI): RT= 1 .09 min, m/z 178.0 [M+H]
52% With bis-triphenylphosphine-palladium(II) chloride; triethylamine; at 100.0℃; under 7600.51 Torr; [0211] Step 3. Pyrazolo[1,5-alpyrimidine-5-carboxylic acid methyl ester. A mixture of 5- chloro-pyrazolo[1,5-a]pyrimidine (2 g, 13.02 mmol, 1.00 equiv), triethylamine (4 mL), methanol (80 mL), and bis(triphenylphosphine)palladium(II) dichloride (1 g, 1.42 mmol, 0.11 equiv) was stirred in a 100-mL pressure reactor overnight at 100 C under 10 atmospheres of carbon monoxide. The reaction mixture was cooled to rt then concentrated under vacuum.The residue was purified on a silica gel column eluted with ethyl acetate/petroleum ether (1:5) to yield 1.2 g (52%) of the title compound as a light yellow solid. LC/MS (Method I, ESI): RT= 1.09 mi m/z = 178.0 [M+Hf?.
52% With bis-triphenylphosphine-palladium(II) chloride; triethylamine; at 100.0℃; under 7600.51 Torr; [0219] Step 3. PyrazolorL5-alpyrimidine-5-carboxylic acid methyl ester. A mixture of 5- chloro-pyrazolo[l,5-a]pyrimidine (2 g, 13.02 mmol, 1.00 equiv), triethylamine (4 mL), methanol (80 mL), and bis(triphenylphosphine)palladium(II) dichloride (1 g, 1.42 mmol, 0.11 equiv) was stirred in a 100-mL pressure reactor overnight at 100 C under 10 atmospheres of carbon monoxide. The reaction mixture was cooled to rt then concentrated under vacuum. The residue was purified on a silica gel column eluted with ethyl acetate/petroleum ether (1 :5) to yield 1.2 g (52%) of the title compound as a light yellow solid. LC/MS (Method I, ESI): RT= 1.09 min, m/z = 178.0 [M+H]+.

  • 3
  • [ 1159981-95-9 ]
  • [ 29274-24-6 ]
 

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