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Chemical Structure| 1118-69-0 Chemical Structure| 1118-69-0

Structure of 1118-69-0

Chemical Structure| 1118-69-0

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Product Details of [ 1118-69-0 ]

CAS No. :1118-69-0
Formula : C5H11NO
M.W : 101.15
SMILES Code : CC(NC(C)C)=O
MDL No. :MFCD00085718
InChI Key :PDUSWJORWQPNRP-UHFFFAOYSA-N
Pubchem ID :136874

Safety of [ 1118-69-0 ]

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

Computational Chemistry of [ 1118-69-0 ] Show Less

Physicochemical Properties

Num. heavy atoms 7
Num. arom. heavy atoms 0
Fraction Csp3 0.8
Num. rotatable bonds 2
Num. H-bond acceptors 1.0
Num. H-bond donors 1.0
Molar Refractivity 29.15
TPSA ?

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

29.1 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

1.55
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

0.34
Log Po/w (WLOGP)?

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

0.53
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.

0.49
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

0.18
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

0.62

Water Solubility

Log S (ESOL):?

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

-0.55
Solubility 28.6 mg/ml ; 0.282 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.

-0.52
Solubility 30.9 mg/ml ; 0.305 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

-1.01
Solubility 9.82 mg/ml ; 0.0971 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.

-6.68 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)

1.0

Application In Synthesis of [ 1118-69-0 ]

* 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 [ 1118-69-0 ]

[ 1118-69-0 ] Synthesis Path-Downstream   1~35

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YieldReaction ConditionsOperation in experiment
100% With triethylamine; In dichloromethane; at 20℃;Cooling with ice; In an ice bath, 9 acetic anhydride (16.15 mL) was slowly added into the solution of 10 triethylamine (TEA, 23.58 mL) and 11 isopropylamine (10 g) in 12 dichloromethane (100 mL), and after the addition was completed, the reaction was stirred overnight at rt. The dichloromethane was removed under reduced pressure. 13 Diethyl ether was added, followed by a large amount of potassium carbonate, and the mixture was stirred overnight. The solid was filtered, and the filtrate was concentrated under reduced pressure to give 16.0 g a colorless clear oil, yield: 100%. LC-MS(APCI): m/z=102.1 (M+1); 1H NMR (500 MHz, CDCl3) (delta/ppm) 4.14-3.99 (m, 1H), 1.94 (s, 3H), 1.13 (d, J=6.6 Hz, 6H).
89.5% With potassium carbonate; triethylamine; In dichloromethane; at 0 - 20℃; for 12h; Preparation example 4: Preparation of N-isopropylacetamide Isopropylamine (5.0 g, 84.7 mmol) and triethylamine (12.8 g, 126.7 mmol) were dissolved in dichloromethane (50 mL), and the temperature was cooled to 0C. Acetic anhydride (17.3 g, 169.4 mmol) was added slowly. After the addition, the mixture was warmed up to room temperature, and reacted for 12 h. The solvent was removed by reduced pressure distillation. To the residue, acetic ether (100 mL) and potassium carbonate (20 g) were added. After stirring for 6 h, the mixture was filtrated under suction, and the solvent was removed by reduced pressure distillation to get the oil title compound (7.65 g, yield: 89.5%).
With triethylamine; In dichloromethane; at 0 - 20℃; Preparation 26N-Isopropyl-acetamideAdd TEA (23.58 mL) to a solution of 2-propanamine (10 g) in DCM (100 mL) at 0 C. Then, carefully add drop wise acetic acid anhydride (16.15 mL). Stir at RT overnight. Remove the solvent under vacuum, dilute with ethyl ether (ether) and filter the solid. Remove the solvent under vacuum. Dilute the oil with ether, add potassium carbonate and stir overnight at RT. Filter the solid and remove the solvent under vacuum to afford 15.62 g of the title compound. NMR (CDCl3) 4.06 (m, 1H), 1.94 (s, 3H), 1.14 (d, 6H).
With Silica-bound 1-hydroybenzotriazole; In dichloromethane; for 3h; To the activated polymer-bound HOBt (0.25 g) in the chosen solvent (6 mL), amine (0.75 equiv) is added and rocked for four hours in the case of activated P-HOBt, and 3 hours with activated Si-HOBt. Then the suspension was filtered and washed with the chosen solvent (3 × 5 mL). Both the filtrate and the washings were collected in a pre-weighed round bottom flask and concentrated to obtain the amide.
27.8 g With triethylamine; In dichloromethane; at 5 - 20℃; 2-isopropylamine (20 g, 338.4 mmol) under ice-Triethylamine (34.6 g, 341.8 mmol) was successively dissolved in dichloromethane (150 mL)Acetic anhydride (35.2 g, 345.1 mmol) was slowly added dropwise to the reaction flask through a constant pressure dropping funnel,Control the internal temperature less than 5 .Plus,The reaction flask was transferred to room temperature and stirred overnight.The solvent was removed by concentration under reduced pressure,After dilution with methyl tert-butyl ether (200 mL), potassium carbonate (50 g) was added,And the mixture was stirred at room temperature for 1 hour.Decompression pumping,The filtrate was concentrated under reduced pressure to give the compound of formula VII-1 (27.8 g)For the light yellow liquid.
27.8 g With triethylamine; In dichloromethane; at 5 - 20℃; 2-isopropylamine (20 g, 338.4 mmol) and triethylamine (34.6 g, 341.8 mmol) were sequentially dissolved in dichloromethane(150 mL). Acetic anhydride (35.2 g, 345.1 mmol) was slowly added dropwise to the reaction flask through a constant-pressure dropping funnel. ControlSystem temperature is less than 5 . After the addition was completed, the reaction flask was transferred to room temperature and stirred overnight. The solvent was removed by concentration under reduced pressure with methyl tert-butylAfter diluting with ether (200 mL), potassium carbonate (50 g) was added and stirred at room temperature for 1 hour. Vacuum filtration, the filtrate was concentrated under reduced pressureThe compound of formula XIII-1 (27.8 g) was a light yellow liquid

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YieldReaction ConditionsOperation in experiment
92% With hydroxyapatite supported copper(I) oxide; In acetonitrile; at 50℃; for 0.1h; General procedure: To a mixture of amine (1 mmol), acetyl chloride (1 mmol)in acetonitrile (5 mL) were added hydroxyapatite ?Cu2O(0.1 g) under air atmosphere. The reaction mixture wasrefluxed at 50 °C for an appropriate time. The progress ofthe reaction was monitored through TLC. Upon completionof the reaction, the reaction mixture was cooled toroom temperature and filtered. The residue was washedwith water followed by EtOAc (3 × 10 mL). The productwas obtained after the removal of solvent under reducedpressure followed by crystallization from pet ether orEtOAc:pet ether or passing through column of silica andelution with EtOAc:pet ether.
With potassium carbonate; In ethyl acetate; at 0 - 20℃;Industry scale; c. N-Isopropyl-acetamideAdd potassium carbonate (28 kg) to a solution of 2-propanamine (12 kg) in ethyl acetate (108 kg) at <20° C. Cool the mixture to 5-0° C. and add acetyl chloride (16.7 kg) at about 2-3 kg/h. Stir until complete by gas chromatography. Quench the reaction with water (0.8 kg) and filter the reaction mixture and concentrate to afford 13.4 kg of the title compound. NMR (CDCl3) 4.06 (m, 1H), 1.94 (s, 3H), 1.14 (d, 6H).
13.4 kg With potassium carbonate; In ethyl acetate; at 0 - 5℃;Large scale; Add potassium carbonate (28 kg) to a solution of 2-propanamine (12 kg) in ethyl acetate (108 kg) at <20 °C. Cool the mixture to 5-0 °C and add acetyl chloride (16.7 kg) at about 2-3 kg/hour. Stir until complete by gas chromatography. Quench the reaction with water (0.8 kg) and filter the reaction mixture and concentrate to afford 13.4 kg of the title compound. NMR (CDC13) 4.06 (m, 1H), 1.94 (s, 3H), 1.14 (d, 6H).
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Technical Information

Categories

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