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Chemical Structure| 277299-70-4

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Product Details of [ 277299-70-4 ]

CAS No. :277299-70-4
Formula : C12H14N2O
M.W : 202.25
SMILES Code : O=C1N(C2=CC=C(C)C(C)=C2)NC(C)=C1
MDL No. :MFCD09795980
InChI Key :HBWBJCSXUJIDGN-UHFFFAOYSA-N
Pubchem ID :11735829

Safety of [ 277299-70-4 ]

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

Computational Chemistry of [ 277299-70-4 ] Show Less

Physicochemical Properties

Num. heavy atoms 15
Num. arom. heavy atoms 11
Fraction Csp3 0.25
Num. rotatable bonds 1
Num. H-bond acceptors 1.0
Num. H-bond donors 1.0
Molar Refractivity 61.29
TPSA ?

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

37.79 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

2.41
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

2.58
Log Po/w (WLOGP)?

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

2.09
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.

2.46
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

3.04
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

2.52

Water Solubility

Log S (ESOL):?

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

-3.2
Solubility 0.129 mg/ml ; 0.000637 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.

-3.02
Solubility 0.192 mg/ml ; 0.00095 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

-4.0
Solubility 0.0202 mg/ml ; 0.0000998 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.

-5.7 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)

1.94

Application In Synthesis of [ 277299-70-4 ]

* 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 [ 277299-70-4 ]

[ 277299-70-4 ] Synthesis Path-Downstream   1~3

  • 1
  • [ 141-97-9 ]
  • [ 60481-51-8 ]
  • [ 277299-70-4 ]
YieldReaction ConditionsOperation in experiment
76% With sodium bicarbonate; sodium acetate; In diethyl ether; acetic acid; f 1-(3,4-Dimethylphenyl)-3-methyl-3-pyrazolin-5-one A solution of <strong>[60481-51-8]3,4-dimethylphenylhydrazine hydrochloride</strong> (17.7 g; 0.1 mol.), ethyl acetoacetate (13.0 g; 0.1 mol.) and sodium acetate (8.2 g; 0.1 mol.) in glacial acetic acid (250 mL) was stirred and heated under reflux for 24 h. The mixture was cooled and evaporated and the residue dissolved in diethyl ether (IL) and carefully washed with sat. aqu. sodium hydrogen carbonate (5*200 mL). The ethereal layer was evaporated to afford the title compound (15.4 g; 76percent). 1H NMR (300 MHz, d6-DMSO) delta11.30 (br s, 1H), 7.49 (d, J=1.4 Hz, 1H), 7.43 (dd, J=8.2 Hz, 1H), 7.14 (d, J=8.2 Hz, 1H), 5.31 (s, 1H), 2.20 (s, 3H), 2.22 (s, 3H), 2.08 (s, 3H); MS(ES) m/z 203 [M+H].
76% With sodium acetate; In acetic acid; for 24h;Heating / reflux; A solution of <strong>[60481-51-8]3,4-dimethylphenylhydrazine hydrochloride</strong> (17.7 g; 0.1 mol.), ethyl acetoacetate (13.0 g; 0.1 mol.) and sodium acetate (8.2 g; 0.1 mol.) in glacial acetic acid; (250 mL) was stirred and heated under reflux for 24 h. [0378] The mixture was cooled and evaporated and the residue dissolved in diethyl ether (1L) and carefully washed with sat. aqu. sodium hydrogen carbonate (5.x.200 mL). The ethereal layer was evaporated to afford the title compound (15.4 g; 76percent). 1H NMR (300 MHz, d6-DMSO) delta 11.30 (br s, 1H), 7.49 (d, J=1.4 Hz, 1H), 7.43 (dd, J=8.2 Hz, 1H), 7.14 (d, J=8.2 Hz, 1H), 5.31 (s, 1H), 2.20 (s, 3H), 2.22 (s, 3H), 2.08 (s, 3H); MS(ES) m/z 203 [M+H].
76% With sodium acetate; acetic acid; for 24h;Reflux; A solution of <strong>[60481-51-8]3,4-dimethylphenylhydrazine hydrochloride</strong> (17.7 g; 0.1 mol.), ethyl acetoacetate (13.0 g; 0.1 mol.) and sodium acetate (8.2 g; 0.1 mol.) in glacial acetic acid; (250 mL) was stirred and heated under reflux for 24h. The mixture was cooled and evaporated and the residue dissolved in diethyl ether (1L) and carefully washed with saturated aqueous sodium hydrogen carbonate (5 x 200 mL). The ethereal layer was evaporated to afford the title compound (15.4 g; 76percent).
  • 2
  • [ 277299-70-4 ]
  • [ 376592-93-7 ]
  • [ 121-44-8 ]
  • eltrombopag triethylamine salt [ No CAS ]
YieldReaction ConditionsOperation in experiment
76% To a cooled at 0 to 10C mixture of 3'-Amino-2'-hydroxy-biphenyl-3-carboxylic acid (100 g) in methanol (2000 ml) was added aq. hydrochloric acid solution (150ml cone, hydrochloric acid in 150 ml water). Aq. sodium nitrite solution (31.87 g sodium nitrite in 100 ml water) was added to the reaction mixture at 0C to 10C within 15min and stirred further for lh. Triethylamine (200 ml) was added to the reaction mixture at 0C to 10C till pH 6 to 8 was obtained. 2-(3,4-dimethyl-phenyl)-5-methyl-l,2-dihydro-pyrazol-3-one (88.24 g) was added to the reaction mixture and stirred for 2h at 25C to 35C. After completion of the reaction on TLC, triethylamine (176.57g) was added to the reaction mixture and heated at 50C to 60C for 2h. The reaction mixture is distilled out under vacuum to get residue. Methanol (1000 ml) was added to the residue and heated at 50C to 60C for 30min. The reaction mixture was cooled to 25C to 35C for 2h. The suspension was filtered and obtained solid was washed with methanol (2 X 50 ml) to give wet cake. Water (1000 ml) was added to this wet cake and heated at 50C to 60C for lh. The reaction mixture is filtered, obtained solid was washed with water (2 X 50 ml) and suck dried to give wet cake. Water (1000 ml) was added to this wet cake and heated at 50C to 60C for lh. The reaction mixture was filtered, obtained solid was washed with water (2 X 50 ml) and suck dried. The solid was dried at 60C to 70C for 12- 15h to give eltrombopag triethylamine salt (180.0 g). Yield: 76.0%.Purity by HPLC: 99.6%. Eta NMR (DMSO) delta: 1.08-1.11 (9H, t), 2.19-2.33 (6H, m), 2.38 (3H,s), 2.87-2.92 (6H, q), 7.06- 7.13 (3H, t), 7.55-7.65 (2H, d), 7.74-7.89 (4H, d), 8.16-8.23(1H, d).Triethylamine content by titration: 18.5%.The XRPD of above obtained Eltrombopag triethylamine salt is given in fig 1
  • 3
  • [ 277299-70-4 ]
  • [ 376592-93-7 ]
  • eltrombopag olamine [ No CAS ]
 

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