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Structure of 82353-56-8

Chemical Structure| 82353-56-8

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Product Details of [ 82353-56-8 ]

CAS No. :82353-56-8
Formula : C8H15NO3
M.W : 173.21
SMILES Code : O=C(OC(C)(C)C)N[C@H](C)C=O
MDL No. :MFCD00274183
InChI Key :OEQRZPWMXXJEKU-ZCFIWIBFSA-N
Pubchem ID :10910049

Safety of [ 82353-56-8 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302
Precautionary Statements:P280-P305+P351+P338

Computational Chemistry of [ 82353-56-8 ] Show Less

Physicochemical Properties

Num. heavy atoms 12
Num. arom. heavy atoms 0
Fraction Csp3 0.75
Num. rotatable bonds 5
Num. H-bond acceptors 3.0
Num. H-bond donors 1.0
Molar Refractivity 45.28
TPSA ?

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

55.4 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

1.9
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

0.86
Log Po/w (WLOGP)?

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

1.1
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.

0.53
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

0.51
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

0.98

Water Solubility

Log S (ESOL):?

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

-1.13
Solubility 13.0 mg/ml ; 0.0749 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.

-1.61
Solubility 4.28 mg/ml ; 0.0247 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

-1.21
Solubility 10.6 mg/ml ; 0.0614 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.

-6.75 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

1.0 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)

2.3

Application In Synthesis of [ 82353-56-8 ]

* 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 [ 82353-56-8 ]

[ 82353-56-8 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 91103-47-8 ]
  • [ 82353-56-8 ]
YieldReaction ConditionsOperation in experiment
85% Example 46(1-Methyl-2-oxo-ethyl)-carbamic acid tert-butyl ester The title compound from Example 45 (3.53 g, 17.4 mmol) was dissolved in toluene (35 mL) at -78 C. and DIBAL-H (26.6 mL, 39.9 mmol) was added dropwise over 1 hour. Methanol (70 mL) was added to the reaction over 10 min. at -78 C. The reaction was moved to an ice bath and 10% w/v citric acid in water (250 mL) was added and the reaction was allowed to stir for 1 hour. The reaction was extracted with portions of ethyl acetate and the organic extracts were washed with water, brine, dried over anhydrous sodium sulfate, filtered and concentrated to give the title compound (2.57 g, 85%) as a white semi-solid.1H NMR (300 MHz, CDCl3): delta (ppm) 9.51 (s, 1H), 5.21 (broad s, 1H), 4.24 (broad s, 1H), 1.53 (s, 9H), 1.35 (d, 3H).
82% Step 1: (R)-tert-butyl 1-oxopropan-2-ylcarbamateTo a cooled solution of <strong>[91103-47-8](R)-methyl 2-(tert-butoxycarbonylamino)propanoate</strong> (40.0 g, 98.0 mmol) in DCM (200 mL) at -78 C. was added diisobutylaluminum hydride (208 mL, 1.0 M in THF) dropwise over 30 min. The reaction mixture was stirred at -78 C. for 1.5 h then quenched with water (50 mL). After warmed to rt, the white precipitate was removed by filtration over Celite. The organic layer was then washed with brine, dried (Na2SO4), and concentrated. The crude residue was purified by flash chromatography (petroleum ether: EtOAc, 10:1) to give (R)-tert-butyl 1-oxopropan-2-ylcarbamate (28.0 g, 82%). 1H NMR (DMSO-d6, 400 MHz) delta 9.43 (s, 1H), 7.33 (d, J=6.0 Hz, 1H), 3.85 (m, 1H), 1.39 (s, 9H), 1.12 (d, J=7.2 Hz, 3H).
65% With diisobutylaluminium hydride; In toluene; at -78℃; for 2h; EXAMPLE 49; (R)-5-Chloro-thiophene-2-carboxylic acid (1 - {3-[4-(N,N-dimethyl-carbamimidoyl)-phenyl]- isoxazol-5-yl}-ethyl)-amide; Step l :; [0553] Methyl ester 8 (4.03 g, 19.9 mmol) was diluted with 40 mL of toluene and cooled to -780C. Diisobutylaluminum hydride in toluene (26 mL, 40 mmol) was added slowly to the precooled mixture down the side of the flask. The reaction was stirred at -780C for two hours at which time it was treated slowly with ca. 5 mL of methanol precooled to -780C (vigorous reaction). The mixture was then warmed to it and partitioned with saturated sodium potassium tartrate and ethyl acetate. The layers were separated, the organic phase was extracted with ethyl acetate and the combined organic layers were dried over MgSO4. After filtration and concentration in vacuo the crude material was purified by filtration through a short plug of silica gel eluted with dichloromethane affording the aldehyde 9 as a colorless oil (2.23g, 65%). 1H NMR (DMSO-J6, 400 MHz): delta 9.38 (s, IH), delta 7.30 (d, IH), delta 3.79 (m, IH), delta 1.31 (s, 9H), 1.06 (d, 3H).
With diisobutylaluminium hydride; In toluene; at -78℃; for 2h; To a stirred solution of (S)-methyl 2-(tert-butoxycarbonylamino)propanoate (3.87 g, 19 mmol) in dry toluene (10 ml) was slowly added DIBAL-H (1.0 M in toluene solution; 24.8 ml, 24.8 mmol) at -78C. After stirring of the mixture at -78C for 2 h, excess of DIBAL-H was quenched with 1.5N HCl (5 ml). The resulting mixture was filtered and the organic layer of the filtrate was washed with saturated NaHCO3 aq and water, dried over with anhydrous MgSO4, and solvent was removed in vacuo. The residue was purified by silica gel column chromatography to give compound (1.74 g) in 53% yield.

 

Historical Records

Technical Information

• Acyl Group Substitution • Barbier Coupling Reaction • Baylis-Hillman Reaction • Bouveault-Blanc Reduction • Bucherer-Bergs Reaction • Buchwald-Hartwig C-N Bond and C-O Bond Formation Reactions • Catalytic Hydrogenation • Chan-Lam Coupling Reaction • Clemmensen Reduction • Complex Metal Hydride Reductions • Corey-Chaykovsky Reaction • Corey-Fuchs Reaction • Ester Cleavage • Fischer Indole Synthesis • Grignard Reaction • Hantzsch Dihydropyridine Synthesis • Heat of Combustion • Henry Nitroaldol Reaction • Horner-Wadsworth-Emmons Reaction • Hydride Reductions • Julia-Kocienski Olefination • Knoevenagel Condensation • Lawesson's Reagent • Leuckart-Wallach Reaction • Mannich Reaction • McMurry Coupling • Meerwein-Ponndorf-Verley Reduction • Mukaiyama Aldol Reaction • Nozaki-Hiyama-Kishi Reaction • Passerini Reaction • Paternò-Büchi Reaction • Petasis Reaction • Pictet-Spengler Tetrahydroisoquinoline Synthesis • Preparation of Aldehydes and Ketones • Preparation of Amines • Prins Reaction • Reactions of Aldehydes and Ketones • Reactions of Amines • Reactions with Organometallic Reagents • Reformatsky Reaction • Schlosser Modification of the Wittig Reaction • Schmidt Reaction • Specialized Acylation Reagents-Carbodiimides and Related Reagents • Specialized Acylation Reagents-Ketenes • Specialized Acylation Reagents-Vilsmeier Reagent • Stetter Reaction • Stobbe Condensation • Tebbe Olefination • Ugi Reaction • Wittig Reaction • Wolff-Kishner Reduction

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