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Chemical Structure| 7499-06-1 Chemical Structure| 7499-06-1

Structure of 7499-06-1

Chemical Structure| 7499-06-1

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CAS No.: 7499-06-1

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Product Details of [ 7499-06-1 ]

CAS No. :7499-06-1
Formula : C8H7ClO2
M.W : 170.59
SMILES Code : C1=C(C(=CC=C1Cl)C)C(O)=O
MDL No. :MFCD00045842
InChI Key :CSAPESWNZDOAFU-UHFFFAOYSA-N
Pubchem ID :82009

Safety of [ 7499-06-1 ]

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

Computational Chemistry of [ 7499-06-1 ] Show Less

Physicochemical Properties

Num. heavy atoms 11
Num. arom. heavy atoms 6
Fraction Csp3 0.12
Num. rotatable bonds 1
Num. H-bond acceptors 2.0
Num. H-bond donors 1.0
Molar Refractivity 43.38
TPSA ?

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

37.3 ?2

Lipophilicity

Log Po/w (iLOGP)?

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

1.52
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

2.44
Log Po/w (WLOGP)?

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

2.35
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.

2.52
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

2.31
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

2.23

Water Solubility

Log S (ESOL):?

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

-2.77
Solubility 0.288 mg/ml ; 0.00169 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.

-2.87
Solubility 0.232 mg/ml ; 0.00136 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

-2.77
Solubility 0.29 mg/ml ; 0.0017 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.

-5.61 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.

0.56

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)

 1.2

Application In Synthesis of [ 7499-06-1 ]

* 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 [ 7499-06-1 ]

[ 7499-06-1 ] Synthesis Path-Downstream   1~7

  • 1
  • [ 7499-06-1 ]
  • [ 89-20-3 ]
  • 2
  • [ 124-38-9 ]
  • [ 95-73-8 ]
  • [ 118-90-1 ]
  • [ 95-49-8 ]
  • [ 5162-82-3 ]
  • [ 7499-06-1 ]
  • 3
  • [ 124-38-9 ]
  • [ 95-73-8 ]
  • [ 118-90-1 ]
  • [ 5162-82-3 ]
  • [ 7499-06-1 ]
  • [ 99-94-5 ]
  • 5
  • [ 64-17-5 ]
  • [ 7499-06-1 ]
  • [ 56427-54-4 ]
YieldReaction ConditionsOperation in experiment
87% With sulfuric acid; for 48.0h;Heating / reflux; 5-chloro-2-methylbenzoic acid (5.04 g, 29.5 mmol) was dissolved in 100 mL ethanol in a 250 mL round bottom flask fitted with a water condenser. 0.5 mL concentrated sulfuric acid was added and the solution heated to reflux. The solution was heated for 48 h and cooled to ambient temperature. The ethanol was removed under reduced pressure. The resultant oil was taken up in 300 mL diethyl ether and washed with saturated aqueous sodium bicarbonate (2 x 300 mL). The organic layer was dried over NA2SO4, filtered and concentrated under reduced pressure to yield 5.12 (87%) of ethyl 5-chloro-2-methylbenzoate as a clear oil. 'H NMR (400 MHz, CDC13) 8 7.88 (d, 1H), 7.35 (dd, 1H), 7.18 (d, 1H), 4.36 (q, 2H), 2.56 (s, 3H), 1.40 (t, 3H). Ethyl 5-chloro-2-methylbenzoate (16.60 g, 83.56 mmol) and diethyl- (3- pyridyl) borane (13.52 g, 91.92 mmol) were dissolved in 100 mL tetrahydrofuran in a 500 mL round bottom flask equipped with a magnetic stirrer. Sodium carbonate (26.57 g, 250.69 mmol) and 50 mL water were added followed by palladium acetate (0.38g, 1.67 mmol) and (2'-dicyclohexylphosphanyl-biphenyl-2-yl)-dimethyl-amine (AmPhos, 0.92g, 2.51 mmol) and 25 mL ethanol. The mixture was heated at reflux for 6 h then cooled to ambient temperature. The mixture was diluted with 600 mL water and extracted with diethyl ether (2 x 300 mL). The organic phases were combined and extracted with 1 N HCI (3 x 200 mL). The acidic extractions were combined and made basic with 5N aqueous sodium hydroxide. This basic layer was extracted with diethyl ether (3 x 500 mL) and the extracts were combined and dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure to yield 19.57g (97%) of ethyl 5- (3-PYRIDYL)-2-METHYLBENZOATE as a brown oil. MS (LC-MS) 242.2 (M + H) +. 'H NMR (400 MHz, CDCI3) 8 8.87 (d, 1H), 8.61 (dd, 1H), 8.13 (d, 1H), 7.95 (dd, 1 H), 7.62 (dd, 1 H), 7.44 (dd, 1 H), 7.37 (d, 1 H), 4.40 (t, 2H), 2.65 (s, 3H), 1.42 (q, 3H). A 500 mL hydrogenation vessel was charged with 2. 0g PLATINUM (II) oxide and purged with nitrogen. Ethyl 5- (3-PYRIDYL)-2-METHYLBENZOATE (19.57g, 81.10 mmol) was added as a solution in 200 mL acetic acid. The suspension was hydrogenated at 45 psi for 18 h. The catalyst was filtered through celite and the filter plug was washed with 200 mL acetic acid. The filtrate was concentrated under reduced pressure. The resultant oil was taken up in 500 mL water and made basic with 5N aqueous sodium hydroxide. This basic layer was extracted with ethyl acetate (2 x 500 mL) and the extracts were combined and dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The resultant oil was taken up in 200 mL hot ethanol. L- (+)-tartaric acid (12.17g, 81.1 mmol) was added into the ethanol solution and was allowed to stir at ambient temperature for 48 h, forming a white precipitate that was collected by filtration. The white solid was recrystallized from hot 5% H2O/ETHANOL (300 mL) and then from 350 mL hot 20% H20/ETHANOL to yield 11.25g (35%, 95.8% ee) of (S)-ethyl 5- (3-PIPERIDINYL)-2-METHYLBENZOATE-L-TARTARIC acid salt as a white solid. The mother liquors were combined and concentrated under reduced pressure. The resultant oil was taken up in 300 mL water and made basic with 5N aqueous sodium hydroxide. This basic layer was extracted with ethyl acetate (2 x 300 mL) and the extracts were combined and dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The resultant oil was taken up in 200 mL hot ethanol. D- (-)-tartaric acid (6.82g, 45.4 mmol) was added into the ethanol solution and was allowed to stir at ambient temperature for 48 h, forming a white precipitate that was collected by filtration. The white solid was recrystallized from hot 5% H20/ETHANOL (300 mL) and then from 350 mL hot 20% H20/ETHANOL to yield 13. 51g (42%, 100% ee) of (R)-ethyl 5- (3-PIPERIDINYL)-2-METHYLBENZOATE-D-TARTARIC acid salt as a white solid. MS (LC-MS) 248.2 (M + H) +. 1H NMR (400 MHZ, CDCI3) 6 7. 73 (d, 1H), 7.24 (dd, 1H), 7.18 (d, 1H), 4.35 (q, 2H), 3.18 (t, 2H), 2.78 (t, 1H), 2.68 (m, 2H), 2.54 (s, 3H), 2.38 (br, 1H), 2.01 (d, 1H), 1.82 (m, 1 H), 1.64 (6,2H), 1.40 (t, 3H). HPLC analysis: Chiralcel AD, 1 mL/min, 10% ethanol/heptane 0.025% diethylamine, rt = 8.36 min, 9.00 min (R)-Ethyl 5- (3-PIPERIDINYL)-2-METHYLBENZOATE-D-TARTARIC acid (2.02 g, 5.08 mmol) was dissolved in 100 mL ethyl acetate and washed with 100 mL saturated aqueous NAHCO3. The organic phase was dried over NA2SO4 and concentrated under reduced pressure. The resultant oil was taken up in 10 mL toluene and imidazole-1-carboxylic acid 4-trifluoromethyl-benzyl ester (1.37 g, 5.08 mmol) was added. The reaction was stirred for 72 h at room temperature under nitrogen. The reaction was diluted with water (200 mL), acidified with 1 N aqueous hydrochloric acid and extracted with diethyl ether (2 x 150 mL). The organic extracts were combined, dried over anhydrous sodium sulfate, filtered and concentr...
With thionyl chloride; at 0 - 70℃; Step C: Synthesis of ethyl 5-chloro-2-methylbenzoate as an Intermediate; A mixture of 5-chloro-2-methylbenzoic acid (3.00 g, 17.5 mmol) in ethanol (30 mL) was cooled to 0 C. with an ice bath and thionyl chloride (12.5 mL, 105.5 mmol) was added dropwise, over 30 minutes. After this time, the mixture was warmed to room temperature for 1 h, then transferred to an oil bath, and heated to 70 C. overnight. The mixture was then cooled to room temperature and concentrated under reduced pressure. The solids obtained were then redissolved in diethyl ether (50 mL) and washed with 1 N sodium hydroxide (50 mL), brine (50 mL), dried over magnesium sulfate, and concentrated under reduced pressure to afford ethyl 5-chloro-2-methylbenzoate as a clear oil: 1H NMR (500 MHz, CDC13) delta 7.88 (d, J=2.5 Hz, 1H), 7.34 (dd, J=8.5, 2.5 Hz, 1H), 7.17 (d, J=8.5 Hz, 1H), 4.36 (q, J=7.5 Hz, 2H), 2.56 (s, 3H), 1.39 (t, J=7.5 Hz, 3H); ESI MS m/z 199 [M+H]+.
  • 7
  • [ 7499-06-1 ]
  • [ 19641-29-3 ]
YieldReaction ConditionsOperation in experiment
With sodium persulfate; tetrabutylammomium bromide; In acetonitrile; at 80℃; General procedure: To a solution of methylbenzoic acid 2 (3.0 mmol), and Na2S2O8 (9.0 mmol) in CH3CN (15 mL) was added TBAB (6.0 mmol) at room temperature. The reaction mixture was stirred at 80 C until the alkylbenzoic acid was almost consumed, as determined by TLC. Then, the resulting mixture was diluted with water and extracted with EtOAc. The organic layer was gradually washed with aq NaHCO3 and brine and dried over MgSO4. The solvent was removed under reduced pressure. The crude residue was purified by flash column chromatography with EtOAc/hexanes as eluent to afford the desired phthalide 3. Next, to a stirred solution of the phthalide 3 (1.0 mmol) in CH2Cl2 (5 mL) was added DIBAL-H (1.1 mmol, 1.2 M in toluene) at -78 C. After stirring for 10 min, the reaction was quenched with sat. Na2SO4 (0.5 mL) and allowed to warm to room temperature. After adding more of the dry Na2SO4, the resulting mixture was stirred for 1 h and filtered through a celite plug. The organic residue was concentrated in vacuo and purified by flash column chromatography with EtOAc/hexanes as eluent to afford the desired 2-formylbenzyl alcohol 1 (including 1,3-dihydro-2-benzofuran-1-ol tautomer 4).
 

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