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Chemical Structure| 427-49-6 Chemical Structure| 427-49-6

Structure of 427-49-6

Chemical Structure| 427-49-6

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Product Details of [ 427-49-6 ]

CAS No. :427-49-6
Formula : C13H16O3
M.W : 220.26
SMILES Code : O=C(O)C(O)(C1CCCC1)C2=CC=CC=C2
MDL No. :MFCD00019296
InChI Key :WFLUEQCOAQCQLP-UHFFFAOYSA-N
Pubchem ID :98283

Safety of [ 427-49-6 ]

GHS Pictogram:
Signal Word:Danger
Hazard Statements:H315-H318-H335
Precautionary Statements:P261-P264-P271-P280-P302+P352-P304+P340+P312-P305+P351+P338-P310-P332+P313-P362-P403+P233-P405-P501

Computational Chemistry of [ 427-49-6 ] Show Less

Physicochemical Properties

Num. heavy atoms 16
Num. arom. heavy atoms 6
Fraction Csp3 0.46
Num. rotatable bonds 3
Num. H-bond acceptors 3.0
Num. H-bond donors 2.0
Molar Refractivity 60.95
TPSA ?

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

57.53 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

1.8
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

2.48
Log Po/w (WLOGP)?

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

2.04
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.

1.86
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

2.04
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

2.04

Water Solubility

Log S (ESOL):?

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

-2.85
Solubility 0.313 mg/ml ; 0.00142 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.

-3.33
Solubility 0.102 mg/ml ; 0.000465 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

-2.41
Solubility 0.859 mg/ml ; 0.0039 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.

-5.88 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.

0.56

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)

2.29

Application In Synthesis of [ 427-49-6 ]

* 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 [ 427-49-6 ]

[ 427-49-6 ] Synthesis Path-Downstream   1~4

  • 1
  • [ 13220-33-2 ]
  • [ 427-49-6 ]
  • [ 13118-11-1 ]
YieldReaction ConditionsOperation in experiment
Example 1; Preparation of (3S,2'R)- and (3R,2'S)-3-[(cyclopentyl-hydroxyphenylacetyl)-oxy]-l,l- dimethylpyrrolidinium bromide; 30 g of cyclopentyl mandelic acid, dissolved in 135 g dimethylformamide (DMF), were treated with 27 g carbonyldiimidazole at 180C (in portions) to form the "active amide". After the addition of 16.9 g of l-methyl-pyrrolidin-3-ol, the mixture was heated to 600C within 1 hour and stirred for 18 hours at this temperature. After checking for complete conversion, the mixture was cooled and 200 g water was added. The mixture was extracted with 200 g toluene and the extract was washed with water three times. The organic phase was concentrated to obtain cyclopentyl-hydroxy-phenyl-acetic acid l-methyl-pyrrolidin-3-yl ester as an about 50percent solution in toluene, ready to use for the next step.This solution was diluted with 120 g of n-propanol and cooled to O0C. 16.8 g methyl bromide was introduced and the mixture was stirred for 2 hours and then gradually heated to 60°C to evaporate the excess methyl bromide into a scrubber. The mixture was then cooled to 500C and seed crystals were added to facilitate crystallisation. The temperature was then slowly reduced over 18 hours to 15°C. The solid was then isolated by filtration to obtain 22.7 g after drying. It was composed mainly of one pair of enantiomers, a racemic mixture of (3S,2'R)- and (3R,2'S)-3-[(cyclopentyl-hydroxyphenylacetyl)-oxy]-l,l- dimethylpyrrolidinium bromide, with a purity greater than 90percent (by HPLC). The other pair of diastereoisomers ((3R,2'R)- and (3S,2'S)-3-[(cyclopentyl-hydroxyphenyl-acetyl)-oxy]-l,l- dimethylpyrrolidinium bromide) remains mainly in the filtrate as those compounds are significantly more soluble in n-propanol than the other stereoisomers.The solid obtained is further recrystallised in n-propanol (1:10 wt) to give pure (3S,2'R)- and (3R,2'S)-3-[(cyclopentyl-hydroxyphenylacetyl)-oxy]-l,l-dimethylpyrrolidinium bromide i.e. purity >; 99.9percent as determined by high performance liquid chromatography (HPLC).
  • 2
  • [ 154094-97-0 ]
  • [ 427-49-6 ]
  • 2-cyclopentyl-2-hydroxy-N-[2-(1H-imidazol-1-yl)ethyl]-2-phenylacetamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
Example 1 : Synthesis of 2-Cyclopentyl-2-hydroxy-lambda/-[2-(lH-imidazol-l-yl)ethyll-2- phenylacetamide (Compound No. 1) <n="36"/>To a solution of the hydrochloride salt of 2-(lH-imidazol-l-yl)ethanamine (0.5 g, 4.50 mmol) in chloroform (10 ml) was added N-methyl morpholine (2.96 ml, 27.02 mmol) and stirred the mixture for 5 to 10 minutes at the room temperature followed by the addition of 2- cyclopentyl-2-hydroxy-2-phenyl acetic acid (0.99 g, 4.5 mmol) and hydroxy benzotriazole (0.60 g, 4.5 mmol) at room temperature. The resulting reaction mixture was stirred for 30-45 minutes followed by the addition of l-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride and again stirred for over night. The mixture was diluted with water and stirred for 10-15 minutes followed by the addition of dichloromethane. The mixture was stirred for 15-20 minutes. The organic layer was separated, washed with water and brine, dried over anhydrous sodium sulphate and concentrated under reduced pressure. The residue thus obtained was purified by preparative column chromatography using 10 % methanol in dichloromethane as eluent to furnish the title compound. Yield: 70 mg.1H NMR (CDCl3)delta: 7.60-7.31 (5H, m), 6.99 (IH, s), 6.99 (IH, s), 6.65 (IH, s), 4.01-4.00 (2H, m), 3.99-3.49 (2H, m), 3.11-3.07 (IH, m), 1.64-1.42 (8H, m).
  • 3
  • [ 13220-33-2 ]
  • [ 427-49-6 ]
  • [ 530-62-1 ]
  • [ 13118-11-1 ]
  • [ 1404453-84-4 ]
  • 4
  • [ 13220-33-2 ]
  • [ 427-49-6 ]
  • [ 596-51-0 ]
 

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