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Structure of 39998-25-9

Chemical Structure| 39998-25-9

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Product Details of [ 39998-25-9 ]

CAS No. :39998-25-9
Formula : C8H9NO2
M.W : 151.16
SMILES Code : O=C(OC)CC1=CC=CN=C1
MDL No. :MFCD00023617
InChI Key :PZXIEBDIPWIRGB-UHFFFAOYSA-N
Pubchem ID :96475

Safety of [ 39998-25-9 ]

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

Computational Chemistry of [ 39998-25-9 ] Show Less

Physicochemical Properties

Num. heavy atoms 11
Num. arom. heavy atoms 6
Fraction Csp3 0.25
Num. rotatable bonds 3
Num. H-bond acceptors 3.0
Num. H-bond donors 0.0
Molar Refractivity 40.1
TPSA ?

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

39.19 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

1.64
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

0.27
Log Po/w (WLOGP)?

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

0.8
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.

0.39
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

1.51
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

0.92

Water Solubility

Log S (ESOL):?

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

-1.15
Solubility 10.6 mg/ml ; 0.0703 mol/l
Class?

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

Very soluble
Log S (Ali)?

Ali: Topological method implemented from
Ali J. et al. 2012 J. Chem. Inf. Model.

-0.65
Solubility 33.5 mg/ml ; 0.222 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

-2.49
Solubility 0.491 mg/ml ; 0.00325 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.

-7.03 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)

1.49

Application In Synthesis of [ 39998-25-9 ]

* 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 [ 39998-25-9 ]

[ 39998-25-9 ] Synthesis Path-Downstream   1~35

  • 2
  • [ 71-23-8 ]
  • [ 39998-25-9 ]
  • [ 166411-28-5 ]
  • 3
  • [ 39998-25-9 ]
  • [ 78-83-1 ]
  • [3]pyridyl-acetic acid isobutyl ester [ No CAS ]
  • 4
  • [ 39998-25-9 ]
  • [ 1484-85-1 ]
  • [3]pyridyl-acetic acid-(2-benzo[1,3]dioxol-5-yl-ethylamide) [ No CAS ]
  • 5
  • [ 39998-25-9 ]
  • [ 100-52-7 ]
  • 3<i>t</i>-phenyl-2-[3]pyridyl-acrylic acid methyl ester [ No CAS ]
  • 6
  • [ 39998-25-9 ]
  • [ 141-43-5 ]
  • [3]pyridyl-acetic acid-(2-hydroxy-ethylamide) [ No CAS ]
  • 7
  • [ 39998-25-9 ]
  • [ 107-18-6 ]
  • [3]pyridyl-acetic acid allyl ester [ No CAS ]
  • 8
  • [ 39998-25-9 ]
  • [ 67-63-0 ]
  • [ 166411-29-6 ]
  • 9
  • [ 39998-25-9 ]
  • [ 77-78-1 ]
  • [ 118299-60-8 ]
  • 10
  • [ 39998-25-9 ]
  • [ 6293-56-7 ]
YieldReaction ConditionsOperation in experiment
51% With lithium aluminium tetrahydride; In tetrahydrofuran; at 0℃; for 1h; To a solution of <strong>[39998-25-9]methyl 2-(pyridin-3-yl)acetate</strong> (15.1 g, 100 mmol, 1 equiv) in anhydrous THF (180 mL) was added LiAlH4 (4.l8 g, 110 mmol, 1.1 equiv) in portions at 0C. The reaction mixture was stirred at 0C for 1 hour. Then the reaction was quenched carefully with 10% NaOH (aq.), filtered, and extracted with DCM (3 * 150 mL). The combined organic phase were washed with brine (30 mL), dried over anhydrous Na2S04, filtered and concentrated in vacuo to afford the title compound 2-(pyri din-3 -yl)ethanol as a yellow oil (6.1 g, 51% yield). LC-MS: m/z 124.1 (M+H)+
Into a 500-mL flask to which a nitrogen gas introduction tube, thermometer, and Dimroth condenser had been attached were introduced 21.29 g (0.141 mol) of the <strong>[39998-25-9]methyl 3-pyridylacetate</strong> obtained above and 250 mL of anhydrous methanol. The contents were stirred at room temperature. The atmosphere in the flask was replaced with nitrogen, and 15.62 g (0.372 mol) of sodium borohydride was added to the contents little by little. The resultant mixture was heated and reacted for further 3.5 hours with refluxing. Thereafter, the liquid reaction mixture was cooled to room temperature, and 100 mL of water was added thereto to hydrolyze the excess sodium borohydride remaining unreacted. The methanol was distilled away under vacuum. Thereafter, an extraction operation using 100 mL of chloroform was conducted twice, and the resultant organic phase was washed with 100 mL of saturated aqueous sodium chloride solution and dried by adding anhydrous sodium sulfate thereto. The anhydrous sodium sulfate was removed by decantation. Thereafter, vacuum distillation was conducted to obtain 12.59 g (0.102 mol) of 3-pyridylethanol.
  • 11
  • [ 39998-25-9 ]
  • [ 501-81-5 ]
  • 12
  • [ 39998-25-9 ]
  • [ 85375-73-1 ]
  • 14
  • [ 39998-25-9 ]
  • [ 83421-23-2 ]
YieldReaction ConditionsOperation in experiment
With hydroxylamine hydrochloride; sodium methylate; triethylamine; In methanol; chloroform; water; A. Preparation of N-hydroxy 3-pyridineacetamide A solution of 13.8 g. (200 mmole) of hydroxylamine hydrochloride and 27.8 ml. (200 mmole) of triethylamine in 500 ml. of methyl alcohol was cooled to a temperature of -5 C. and 30.2 g. (200 mmole) of methyl 3-pyridineacetate were added. The mixture was stirred for 6 hours at room temperature and then 10.8 g. (200 mmole) of sodium methylate were added causing a slight exotherm to occur. The reaction mixture was then stirred for 27.5 hours. The reaction mixture was filtered and the filtrate evaporated to dryness. The crude residue of product was sonicated with 50 ml. of chloroform and filtered. The insoluble crude product (25.10 g) was crystallized from 50 ml. of water. There were obtained 15.54 g. of product melting with decomposition at about 163 C. to about 165 C. Elemental analysis calculated for C7 H8 N2 O2: Theory: C, 55.26; H, 5.30; N, 18.41; O, 21.03. Found: C, 55.03; H, 5.09; N, 18.16; O, 20.86.
  • 15
  • [ 39998-25-9 ]
  • [ 3724-16-1 ]
YieldReaction ConditionsOperation in experiment
76% With ammonium hydroxide; In water; at 20℃; The starting material was prepared as follows : To a stirred slurry of the ethyl 3-pyridylacetate (5.00 g ; 30.2 mmol) was added concentrated NH40H (50 ml), the resulting suspension was stirred at room temperature overnight. The solution was evaporated to dryness to afford a solid, which was washed with MeCN-ether (100 ml, 3:1) and dried to a constant weight in a vacuum oven to give 20 as a white solid. Yield: 76 % ¹H NMR (DMSOd6) : 3.43 (s, 2H) ; 6.98 (bs, 1H) ; 7.33 (m, 1H) ; 7.52 (bs, 1H) ; 7.69 (d, 1 H) ; 8.46 (m, 2H). MS - ESI : 137 [M+H]+
  • 16
  • [ 39998-25-9 ]
  • [ 73711-11-2 ]
  • 17
  • [ 5423-64-3 ]
  • [ 39998-25-9 ]
  • 18
  • [ 186581-53-3 ]
  • [ 501-81-5 ]
  • [ 39998-25-9 ]
  • 19
  • [ 67-56-1 ]
  • [ 6419-36-9 ]
  • [ 39998-25-9 ]
YieldReaction ConditionsOperation in experiment
98% With sulfuric acid; for 1h;Reflux; To a solution of 2-(pyri din-3 -yl)acetic acid hydrochloride (17.3 g, 100 mmol, 1 equiv) in MeOH (80 mL) was added concentrated H2SO4 (6.4 mL, 120 mmol, 1.2 equiv) dropwise at room temperature and the resulting mixture was refluxed for 1 hour. The reaction mixture was poured into saturated NaHC03 solution and extracted with DCM (3 *100 mL). The combined organic phase were washed with brine (30 mL), dried over anhydrous Na2S04, filtered and concentrated in vacuo to afford the title compound methyl 2-(pyridin-3-yl)acetate as yellow solid (15 g, 98% yield). LC-MS: m/z 152.1 (M+H)+
97% In order to synthesize 3-pyridylethanethiol, 3-pyridylethanol as an intermediate therefor was synthesized by the following method. Into a 1-L flask to which a nitrogen gas introduction tube, thermometer, Dimroth condenser, and dropping funnel had been attached was introduced 25.12 g (0.145 mol) of 3-pyridylacetic acid monohydrochloride. Thereto was added 500 mL of anhydrous methanol. After the atmosphere in the flask was replaced with nitrogen, the contents were stirred at room temperature to dissolve the monohydrochloride. Thereto was added dropwise 31.12 g (0.248 mol) of thionyl chloride. Thereafter, the resultant mixture was heated and reacted for further 2.5 hours with refluxing. After the reaction, the reaction mixture was cooled to room temperature, and the methanol was distilled off under vacuum. The residue was neutralized with a saturated aqueous solution of sodium hydrogen carbonate. An extraction operation using 100 mL of ethyl acetate was conducted three times, and anhydrous sodium sulfate was added to the resultant organic phase to dry the phase. The anhydrous sodium sulfate was removed by decantation. Thereafter, the solvent was distilled off under vacuum. Thus, 21.29 g (0.141 mol) of methyl 3-pyridylacetate, which is the methanol ester of 3-pyridylacetic acid, was obtained (yield, 97%).
  • 21
  • [ 39998-25-9 ]
  • [ 3389-21-7 ]
  • [ 47220-77-9 ]
  • 22
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  • [ 624-75-9 ]
  • [ 89058-79-7 ]
  • 23
  • [ 39998-25-9 ]
  • [ 74-88-4 ]
  • [ 14996-89-5 ]
  • 24
  • [ 39998-25-9 ]
  • Chloro-pyridin-3-yl-acetic acid methyl ester [ No CAS ]
  • 26
  • [ 107-10-8 ]
  • [ 39998-25-9 ]
  • [ 170026-20-7 ]
  • 27
  • [ 39998-25-9 ]
  • [ 768-95-6 ]
  • [ 145958-61-8 ]
  • 28
  • [ 39998-25-9 ]
  • [ 702-98-7 ]
  • 2-methyl-2-adamantyl 3-pyridylacetate [ No CAS ]
  • 29
  • [ 39998-25-9 ]
  • [ 77-53-2 ]
  • (1S,2R,5S,8R)-cedryl 3-pyridylacetate [ No CAS ]
  • 32
  • [ 39998-25-9 ]
  • [ 107-15-3 ]
  • [ 155473-69-1 ]
  • 33
  • [ 67-56-1 ]
  • [ 39972-50-4 ]
  • [ 39998-25-9 ]
  • 34
  • [ 39998-25-9 ]
  • Imidazol-1-yl-thiophen-2-yl-methanone [ No CAS ]
  • [ 936371-68-5 ]
  • 35
  • [ 39998-25-9 ]
  • [ 59576-36-2 ]
 

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Technical Information

Categories

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