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Chemical Structure| 65651-80-1 Chemical Structure| 65651-80-1

Structure of 65651-80-1

Chemical Structure| 65651-80-1

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Product Details of [ 65651-80-1 ]

CAS No. :65651-80-1
Formula : C9H15NO2
M.W : 169.22
SMILES Code : O=C(OCC)/C=C/N1CCCC1
MDL No. :MFCD01075735
InChI Key :VFFHLZJSZHWXAJ-VMPITWQZSA-N
Pubchem ID :639785

Safety of [ 65651-80-1 ]

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

Computational Chemistry of [ 65651-80-1 ] Show Less

Physicochemical Properties

Num. heavy atoms 12
Num. arom. heavy atoms 0
Fraction Csp3 0.67
Num. rotatable bonds 4
Num. H-bond acceptors 2.0
Num. H-bond donors 0.0
Molar Refractivity 50.88
TPSA ?

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

29.54 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

2.57
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

1.33
Log Po/w (WLOGP)?

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

0.78
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.

0.9
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

1.29
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

1.37

Water Solubility

Log S (ESOL):?

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

-1.46
Solubility 5.83 mg/ml ; 0.0344 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.

-1.55
Solubility 4.75 mg/ml ; 0.0281 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

-0.89
Solubility 21.8 mg/ml ; 0.129 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.

-6.39 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)

2.32

Application In Synthesis of [ 65651-80-1 ]

* 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 [ 65651-80-1 ]

[ 65651-80-1 ] Synthesis Path-Downstream   1~35

  • 1
  • [ 123-75-1 ]
  • [ 623-47-2 ]
  • [ 65651-80-1 ]
YieldReaction ConditionsOperation in experiment
> 99% With water; In neat (no solvent); at 20℃; for 0.166667h;Sealed tube; Green chemistry; General procedure: Ethyl propiolate (0.5 mmol) was slowly added with stirring to amixture of N-methylaniline (0.6 mmol) and distilled H2O (0.1mL) in a 2 mL vial, and the vial then sealed. The mixture washeated at 80 C with stirring for 1 h. The reaction was thenquenched with sat. brine (0.5 mL), and the mixture was cooledto r.t. and extracted with EtOAc (3 × 1 mL) by pipette in thesame vial. The combined organic layers were dried (Na2SO4), filtered,and concentrated under reduced pressure. The residuewas purified by column chromatography [silica gel, PE-EtOAc(8:1)] to give a pale yellow oil
86% In toluene; at 23℃; for 12h; To a solution of ethyl propiolate (2.96 mL, 29.6 mmol) in toluene (20 mL) was addeddropwise a solution of pyrrolidine (2.4 mL, 29.0 mmol) in toluene (5 mL). The mixture was stirred at 23 C for 12 h and concentrated. The residue was purified by flash chromatography (eluting gradient: 0-10% ethyl acetate in petroleum ether) to give (E)-ethyl 3-(pyrrolidin- 1- yl)acrylate as a yellow oil (4.2 g, 86%). ‘H NMR (400 MHz, CDC13) 0 7.63 (d, J = 12.8 Hz, 1H), 4.44 (d, J = 12.8 Hz, 1H), 4.10 (q, J =7.2 Hz, 2H), 3.37 - 3.10 (m, 4H), 2.02 - 1.97 (m,4H), 1.23 (t, J =7.2 Hz, 3H).
In benzene; EXAMPLE 73 Preparation of Ethyl β-Pyrrolidinylacrylate. A solution of 29.43 g of ethyl propiolate (0.30 mol) in 200 ml of benzene was held at 25 in a water bath with magnetic stirring. A solution of 21.34 g of pyrrolidine in 50 ml of benzene was added dropwise over a period of 45 minutes, during which time the temperature rose to 35. The clear brown solution was stirred overnight and the solvent under reduced pressure at 55. The residue was distilled under reduced pressure to give 35.05 g of yellow oil, boiling point 110 (0.4 torr), which crystallized upon standing. The yellow solid was recrystallized from petroleum ether to give 31.36 (62%) of yellowish platelets, m.p. 37.5-39.5.
In benzene; EXAMPLE 72 Preparation of Ethyl β-Pyrrolidinylacrylate. A solution of 29.43 g of ethyl propiolate (0.30 mol) in 200 ml of benzene was held at 25 in a water bath with magnetic stirring. A solution of 21.34 g of pyrrolidine in 50 ml of benzene was added dropwise over a period of 45 minutes, during which time the temperature rose to 35. The clear brown solution was stirred overnight and the solvent removed under reduced pressure at 55. The residue was distilled under reduced pressure to give 35.05 g of yellow oil, boiling point 110 (0.4 torr), which crystallized upon standing. The yellow solid was recrystallized from petroleum ether to give 31.36 (62%) of yellowish platelets, m.p. 37.5-39.5.

  • 2
  • [ 110-78-1 ]
  • [ 65651-80-1 ]
  • [ 82957-60-6 ]
  • 3
  • [ 65651-80-1 ]
  • [ 4392-24-9 ]
  • [ 4105-92-4 ]
  • [ 86576-75-2 ]
  • [ 86576-76-3 ]
  • 4
  • [ 124-38-9 ]
  • [ 65651-80-1 ]
  • [ 2401-96-9 ]
  • 5
  • [ 369-57-3 ]
  • [ 65651-80-1 ]
  • ethyl 2-benzenehydrazonyl-3-pyrrolidiniumpropanoate tetrafluoroborate [ No CAS ]
  • 6
  • [ 369-57-3 ]
  • [ 65651-80-1 ]
  • [ 67286-70-8 ]
  • 7
  • [ 456-27-9 ]
  • [ 65651-80-1 ]
  • C15H19N4O4(1+)*BF4(1-) [ No CAS ]
  • 8
  • 3-methoxybenzenediazonium tetrafluoroborate [ No CAS ]
  • [ 65651-80-1 ]
  • ethyl 2-(m-methoxybenzenehydrazonyl)-3-pyrrolidiniumpropanoate tetrafluoroborate [ No CAS ]
  • 9
  • [ 100-39-0 ]
  • [ 65651-80-1 ]
  • ethyl 2-formyl-3-phenylpropionate [ No CAS ]
  • [ 86576-74-1 ]
  • 10
  • [ 65651-80-1 ]
  • C9H14(2)HNO2 [ No CAS ]
  • 11
  • [ 65651-80-1 ]
  • [ 103-71-9 ]
  • [ 82957-64-0 ]
  • 12
  • [ 65651-80-1 ]
  • [ 103-72-0 ]
  • [ 82957-65-1 ]
  • 13
  • [ 65651-80-1 ]
  • [ 592-82-5 ]
  • [ 82957-61-7 ]
  • 14
  • [ 65651-80-1 ]
  • [ 152975-99-0 ]
  • Triethyl 1,2-dihydro-2,3,5-pyridinetricarboxylate [ No CAS ]
  • 15
  • [ 65651-80-1 ]
  • [ 163592-53-8 ]
  • Triethyl 6-methyl-5-(methoxycarbonyl)-1,2-dihydro-2,2,3-pyridinetricarboxylate [ No CAS ]
  • 16
  • [ 637-81-0 ]
  • [ 65651-80-1 ]
  • 1-(ethoxycarbonylmethyl)-4-ethoxycarbonyl-1,2,3-triazole [ No CAS ]
  • 17
  • [ 71754-74-0 ]
  • [ 65651-80-1 ]
  • 1-(1-ethoxycarbonylethyl)-4-ethoxycarbonyl-1,2,3-triazole [ No CAS ]
  • 18
  • [ 65651-80-1 ]
  • [ 244238-87-7 ]
  • 2-(4-Methoxy-phenyl)-1,2-dihydro-pyridine-3,5-dicarboxylic acid diethyl ester [ No CAS ]
  • 19
  • [ 129570-69-0 ]
  • [ 65651-80-1 ]
  • [3-(bis(diisopropylamino)thioxophosphoranyl)-4-(ethoxycarbonyl)-5-pyrrolidinyl]-2-pyrazolinyl}bis(diisopropylamino)methylphosphonium triflate [ No CAS ]
  • 20
  • [ 65651-80-1 ]
  • [ 17982-55-7 ]
  • 1-(Diethoxy-phosphorylmethyl)-1H-[1,2,3]triazole-4-carboxylic acid ethyl ester [ No CAS ]
  • 21
  • [ 65651-80-1 ]
  • [ 17982-55-7 ]
  • 1-(Diethoxy-phosphorylmethyl)-1H-[1,2,3]triazole-4-carboxylic acid ethyl ester [ No CAS ]
  • 3-(Diethoxy-phosphorylmethyl)-3H-[1,2,3]triazole-4-carboxylic acid ethyl ester [ No CAS ]
  • 22
  • [ 65651-80-1 ]
  • (E)-3-[1-Phenyl-meth-(E)-ylidene]-amino}-but-2-enoic acid methyl ester [ No CAS ]
  • 6-methyl-2-phenyl-1,2-dihydro-pyridine-3,5-dicarboxylic acid 3-ethyl ester 5-methyl ester [ No CAS ]
  • 23
  • [ 65651-80-1 ]
  • [ 244238-88-8 ]
  • 6-methyl-2-(4-nitro-phenyl)-1,2-dihydro-pyridine-3,5-dicarboxylic acid 3-ethyl ester 5-methyl ester [ No CAS ]
  • 24
  • [ 65651-80-1 ]
  • [ 185623-69-2 ]
  • ethyl 6-(2-furyl)-1,2-dihydro-2,5-diphenylpyridine-3-carboxylate [ No CAS ]
  • 25
  • [ 65651-80-1 ]
  • (3Z)-4-phenyl-1,3-bis(3-pyridyl)-2-azabuta-1,3-diene [ No CAS ]
  • ethyl 5-phenyl-2,6-bis(3-pyridyl)nicotinate [ No CAS ]
  • 26
  • [ 65651-80-1 ]
  • (3Z)-4-phenyl-1,3-bis(2-thienyl)-2-azabuta-1,3-diene [ No CAS ]
  • ethyl 5-phenyl-2,6-bis(2-thienyl)nicotinate [ No CAS ]
  • 27
  • [ 65651-80-1 ]
  • (1E/1Z,3Z)-1,3,4-triphenyl-2-azabuta-1,3-diene [ No CAS ]
  • ethyl 1,2-dihydro-2,5,6-triphenylpyridine-3-carboxylate [ No CAS ]
  • 28
  • [ 65651-80-1 ]
  • [ 185623-69-2 ]
  • 5-ethoxycarbonyl-6-furan-2-yl-2,3-diphenyl-1,2-dihydropyridine [ No CAS ]
  • 29
  • [ 951397-10-7 ]
  • [ 65651-80-1 ]
  • [ 5562-05-0 ]
  • 30
  • [ 65651-80-1 ]
  • 5-ethoxycarbonyl-2-furan-2-yl-3,6-diphenylpyridine [ No CAS ]
  • 31
  • [ 65651-80-1 ]
  • ethyl 2,5,6-triphenylnicotinate [ No CAS ]
  • 32
  • [ 65651-80-1 ]
  • [3-(bis(diisopropylamino)thioxophosphoranyl)-4-(ethoxycarbonyl)pyrazolyl]bis(diisopropylamino)methylphosphonium triflate [ No CAS ]
  • 33
  • [ 65651-80-1 ]
  • 5-[(E)-Butylimino]-4-pyrrolidin-1-yl-5H-thiophen-2-one [ No CAS ]
  • 34
  • [ 123-75-1 ]
  • [ 79-24-3 ]
  • [ 65651-80-1 ]
  • [ 103-72-0 ]
  • [ 623-47-2 ]
  • [ 20328-15-8 ]
YieldReaction ConditionsOperation in experiment
With triethylamine; In toluene; acetonitrile; a. 3-Methyl-4-[4-(trifluoromethyl)phenyl-aminocarbonyl]isoxazole. Ethyl propiolate (2.8 g) and pyrrolidine (1.4 g) in 5 mL of acetonitrile are mixed at room temperature for 1 hour, the solvent evaporated and the ethyl 3-pyrrolidin-1-acrylate used as isolated or distilled under vacuum. Triethylamine (0.25 mL) is added to a mixture of 1.8 g of ethyl 3-pyrrolidin-1-acrylate, 0.9 g of nitroethane and 2.5 g of phenyl isothiocyanate in 10 mL of toluene at room temperature and stirred overnight. The mixture is then refluxed for 0.5 hour, cooled, and the diphenylurea removed by filtration. The mixture is washed with water and brine, dried over anhydrous sodium sulfate, and evaporated to dryness under vacuum to give 1.4 g of ethyl 3-methyl-4-isoxazolecarboxylate. (Stork, G., McMurry, J. C., J. Am. Chem. Soc. 89, 5461,1967).
  • 35
  • tert-butyl 2-chloro-2-hydroximino-acetate [ No CAS ]
  • [ 65651-80-1 ]
  • 3-tert-Butyl 4-ethyl isoxazole-3,4-dicarboxylate [ No CAS ]
YieldReaction ConditionsOperation in experiment
In tetrahydrofuran; 3-tert-Butyl 4-ethyl isoxazole-3,4-dicarboxylate STR12 87.7 g (0.52 mol) of ethyl 3-(1pyrrolidinyl) acrylate are dissolved in 500 ml of tetrahydrofuran, and 93.2 g (0.52 mol) of tert-butyl 2-chloro-2-hydroximino-acetate in 500 ml of tetrahydrofuran are added. Refluxing is carried out for about 3 hours. Thereafter, the mixture is diluted with water, rendered neutral with sodium hydroxide solution, stirred for 5 minutes and then acidified again with hydrochloric acid. The solution is extracted with ethyl acetate and the organic phase is washed with 2N hydrochloric acid and with water. Purification is carried out by chromatography over silica gel. 50.6 g of an oil are obtained.
 

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