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Chemical Structure| 5071-61-4 Chemical Structure| 5071-61-4

Structure of 5071-61-4

Chemical Structure| 5071-61-4

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CAS No.: 5071-61-4

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Product Details of [ 5071-61-4 ]

CAS No. :5071-61-4
Formula : C10H8N2O2
M.W : 188.18
SMILES Code : O=C(C1=CC(C2=CC=CC=C2)=NN1)O
MDL No. :MFCD01248821
InChI Key :QBPUOAJBMXXBNU-UHFFFAOYSA-N
Pubchem ID :121025

Safety of [ 5071-61-4 ]

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

Computational Chemistry of [ 5071-61-4 ] Show Less

Physicochemical Properties

Num. heavy atoms 14
Num. arom. heavy atoms 11
Fraction Csp3 0.0
Num. rotatable bonds 2
Num. H-bond acceptors 3.0
Num. H-bond donors 2.0
Molar Refractivity 50.98
TPSA ?

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

65.98 ?2

Lipophilicity

Log Po/w (iLOGP)?

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

0.58
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

1.74
Log Po/w (WLOGP)?

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

1.77
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.

1.03
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

1.92
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

1.41

Water Solubility

Log S (ESOL):?

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

-2.55
Solubility 0.527 mg/ml ; 0.0028 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.

-2.74
Solubility 0.341 mg/ml ; 0.00181 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

-3.13
Solubility 0.14 mg/ml ; 0.000745 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

 No
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.

-6.21 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.

0.56

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)

 2.01

Application In Synthesis of [ 5071-61-4 ]

* 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 [ 5071-61-4 ]

[ 5071-61-4 ] Synthesis Path-Downstream   1~3

  • 1
  • [ 5071-61-4 ]
  • [ 5932-30-9 ]
  • 2
  • [ 5932-30-9 ]
  • [ 5071-61-4 ]
YieldReaction ConditionsOperation in experiment
80.4% With sodium hydroxide; In methanol; at 20℃; for 2h; To a solution of 1-3 (3.4 g, 15.9 mmol) in MeOH (40 mL) was added NaOH (140 mL, 4M). The reaction mixture was stirred at room temperature for 2 hours. The reaction mixture was concentrated under reduced pressure to remove MeOH. The aqueous phase was acidified with aqueous HCl (1 M) till pH=3 and the mixture was extracted with EtOAc, dried with anhydrous Na2SO4, filtered and concentrated to give the crude product. The crude product was purified by silica gel chromatography eluted to give product 1-4 (2.4 g, 80.4%). MS m/z [ESI]: 189.1 [M+1].
With sodium hydroxide; In methanol; at 20℃; for 0.5h; A solution of the ester 3 (0.1 g, 0.46 mmol) in MeOH (4 mL) was treated with 4 N NaOH (4 mL) and stirred at rt for 30 min. Later methanol was removed in vacuo and adjusted to pH 2-3 with aq1 N HCl and extracted with EtOAc. The organic layer was dried over anhydrous sodium sulfate and evaporated to get acid 4.
  • 3
  • [ 13599-12-7 ]
  • [ 5071-61-4 ]
YieldReaction ConditionsOperation in experiment
89.5% With water; for 8h;Alkaline conditions; To a solution of compound 29b (2.6 g, 9.1 mmol) in MeOH(30 mL) and H2O (15 mL) was added LiOHH2O (0.5 g, 20.0 mmol) and the mixture was stirred at70 C for 8 h. The reaction mixture was evaporated and H2O (15 mL) was added, then acidified byhydrochloric acid (1 M) to pH 3. The suspension was filtered and washed by H2O (10 mL), driedat 50 C for 4 h to afford 11b as a white solid (2.1g, 89.5% yield), m.p.: 227-229 C, decomposition.1H-NMR: 13.39 (s, 1H), 7.83 (m, 2H), 7.41-7.45 (m, 2H), 7.31-7.35 (m, 1H), 7.18(s, 1H). HRMS(ESI)calcd. For C10H8ClN2O2+: [M + H]+ m/z: 189.0659, found: 189.0659. The 1H-NMR data were in goodagreement with those reported [26].
89.5% Ethyl 2,4-dioxo-4-phenylbutanoate (16b) (2.6 g, 9.1 mmol)Dissolved in 30mL of methanol, added 15mL lithium hydroxide monohydrate(0.5 g, 20.0 mmol) in water. The reaction was heated to 70 ° C until the hydrolysis was complete. Concentration under reduced pressure gave a solid suspension. 15 mL of water was added and the pH was adjusted to 3 with 1 N diluted hydrochloric acid. Filtering,The title compound 5-phenyl-1H-pyrazole-3-carboxylic acid (Intermediate 16) was obtained.Dark white solid (2.1 g, yield 89.5percent).
 

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