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Structure of 143809-21-6

Chemical Structure| 143809-21-6

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Product Details of [ 143809-21-6 ]

CAS No. :143809-21-6
Formula : C10H10O4
M.W : 194.18
SMILES Code : O=C(C1=CC=C2OCCOC2=C1C)O
MDL No. :MFCD20640435
InChI Key :YBPIZYYGBWSBKO-UHFFFAOYSA-N
Pubchem ID :10702959

Safety of [ 143809-21-6 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P280-P301+P312-P302+P352-P305+P351+P338

Computational Chemistry of [ 143809-21-6 ] Show Less

Physicochemical Properties

Num. heavy atoms 14
Num. arom. heavy atoms 6
Fraction Csp3 0.3
Num. rotatable bonds 1
Num. H-bond acceptors 4.0
Num. H-bond donors 1.0
Molar Refractivity 49.24
TPSA ?

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

55.76 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

1.67
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

1.53
Log Po/w (WLOGP)?

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

1.46
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.

0.97
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

1.95
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

1.52

Water Solubility

Log S (ESOL):?

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

-2.26
Solubility 1.07 mg/ml ; 0.00551 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.

-2.31
Solubility 0.951 mg/ml ; 0.0049 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

-2.19
Solubility 1.24 mg/ml ; 0.0064 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.

-6.4 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)

2.22

Application In Synthesis of [ 143809-21-6 ]

* 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 [ 143809-21-6 ]

[ 143809-21-6 ] Synthesis Path-Downstream   1~19

  • 1
  • [ 541-41-3 ]
  • [ 143809-21-6 ]
  • C13H14O6 [ No CAS ]
  • 2
  • [ 69464-53-5 ]
  • [ 143809-21-6 ]
  • 3
  • [ 33632-34-7 ]
  • [ 143809-21-6 ]
  • 4
  • [ 143809-21-6 ]
  • [ 185312-08-7 ]
  • 5
  • [ 143809-21-6 ]
  • [ 1027463-59-7 ]
  • 6
  • [ 143809-21-6 ]
  • AGN 192836 [ No CAS ]
  • 7
  • [ 143809-21-6 ]
  • (5-Methyl-2,3-dihydro-benzo[1,4]dioxin-6-yl)-carbamic acid benzyl ester [ No CAS ]
  • 8
  • [ 143809-21-6 ]
  • N-(2,2-Diethoxy-ethyl)-N'-(5-methyl-2,3-dihydro-benzo[1,4]dioxin-6-yl)-guanidine [ No CAS ]
  • 9
  • [ 488-17-5 ]
  • [ 143809-21-6 ]
  • 10
  • [ 143809-24-9 ]
  • [ 143809-21-6 ]
YieldReaction ConditionsOperation in experiment
61% With sodium hydroxide; sodium sulfite;palladium-carbon; In tetrahydrofuran; SYNTHETIC EXAMPLE 9 Production of 5-methyl-1,4-benzodioxan-6-carboxylic acid In 5 ml of tetrahydrofuran was dissolved 0.8 g of 5-methyl-1,4-benzodioxan-6-carbaldehyde, then 27 ml of a 1% sodium hydroxide aqueous solution was added dropwise to the solution and further 0.5 g of a 10% palladium-carbon was added thereto, and the mixture was refluxed under heating for 1.5 days. The mixture was cooled to room temperature, 10 ml of a 10% sodium sulfite aqueous solution was added thereto and after stirring for 30 minutes, the mixture was filtered and the tetrahyctrofuran was removed under reduced pressure. The residue was adjusted to pH 3 with a 5% hydrochloric acid and extracted with diethyl ether. The diethyl ether layer was washed successively with water and saturated saline solution and dried over anhydrous magnesium sulfate. The solvent was removed under reduced pressure to obtain 0.53 g of the titled 5-methyl-1,4-benzodioxan-6-carboxylic acid5-methyl-1,4-benzodioxan-6-carboxylic acid (yield: 61%). 1 H-NMR (CDCl3) delta(ppm): 2.51 (3H, S), 4.29 (4H, s), 6.76 (1H, d, J=8.6Hz), 7.62 (1H, d, J=8.6Hz), 11.98 (1H, brs)
  • 11
  • [ 69464-39-7 ]
  • 5-methyl-l,4-benzodioxan-6-carboxylic acid [ No CAS ]
  • [ 143809-21-6 ]
YieldReaction ConditionsOperation in experiment
77% With n-butyllithium; In tetrahydrofuran; water; SYNTHETIC EXAMPLE 7 Production of 5-methyl-l,4-benzodioxan-6-carboxylic acid In 300 ml of dry tetrahydrofuran, was dissolved 32.0 g of 6-bromo-5-methyl-1,4-benzodioxane and after cooling the solution to -78 C., 96.7 ml of n-butyl lithium (n-hexane solution) was added dropwise over 20 minutes or more. After stirring at the same temperature for 1.5 hours, the reaction mixture was poured onto crushed dry ice and dry ice was sublimated while stirring. Water was added to the mixture and the tetrahydrofuran was removed under reduced pressure. The resulting alkaline aqueous solution was washed with methylene chloride and adjusted to pH 3 with a 5% hydrochloric acid, and the precipitated crystals were collected by filtration and dried to obtain 20.9 g of 5-methyl-1, 4-benzodioxan-6-carboxylic acid (yield: 77%). 1 H-NMR (CDCl3) delta(ppm): 2.51 (3H, s), 4.29 (4H, s), 6.76 (1H, d, J=9.9Hz), 7.62 (1H, d, J=9.9Hz), 11.98 (1H, brs).
YieldReaction ConditionsOperation in experiment
C. 5-Methyl-6-carboxy-1,4-benzodioxane Fresh sodium hypochlorite was prepared by treating Ca(ClO)2 (80 mmol, 11.43 g) in 50 mL of water with Na2CO3 (76 mmol, 8.05 g) and NaOH (24 mmol, 0.96 g) in 25 mL water. To this solution which resulted after warming with mixing and subsequent filtration was added solid acetophenone (example A, preceding) (20 mmol, 3.84 g). This mixture was warmed overnight at 60 C in a heating bath. The aqueous material was added to a separatory funnel and washed two times with dichloromethane. The material was then transferred to an Erlenmeyer Flask and treated dropwise with concentrated HCl until the solution reached a pH of 3. The solid was collected by filtration and washed well with water. The NMR was consistent with the proposed product.
  • 13
  • [ 4442-54-0 ]
  • [ 74-88-4 ]
  • [ 143809-21-6 ]
YieldReaction ConditionsOperation in experiment
34% To a round bottom flask equipped with magnetic stirring, an addition funnel and a nitrogen inlet, was added benzo(1,4)dioxan-6-carboxylic acid (18.00 g, 99.91 mmol) and 1,2-dimethoxyethane (667 mL). This mixture was cooled to -75 C. in a dry ice-acetone bath. To this was added 1.3 M sec-butyl lithium in cyclohexane (230.6 mL, 299.7 mmol) over 1 hour, maintaining reaction temperature below -60 C. The reaction was removed from the cooling bath, allowed to warm to -20 C., and subsequently stirred at -20 C. for 45 min. The reaction was cooled to -50 C., and iodomethane (15.6 mL, 249.8 mmol) was added. The reaction was again removed from the cooling bath, allowed to warm to -20 C., and stirred at this temperature for 45 min. All cooling was removed and the reaction stirred at room temperature for 16 hours. The reaction was quenched by addition of a few mls of 1N HCl (aq) and the solvent removed by evaporation. The residue was made substantially acidic by the addition of aqueous 1N HCl. The resultant precipitate was filtered and washed with water to give a light brown solid, 5-methyl-benzo(1,4)dioxan-6-carboxylic acid, (6.60 g, 33.9 mmol) in 34% yield. 1H-NMR (300 MHz, CDCl3) delta (ppm): 7.62 (d, 1H), 6.8 (d, 1H), 4.30 (br s, 4H), 2.52 (s, 3H).
  • 14
  • [ 143809-21-6 ]
  • [ 74-88-4 ]
  • methyl 5-methyl-2,3-dihydrobenzo[b][1,4]dioxine-6-carboxylate [ No CAS ]
YieldReaction ConditionsOperation in experiment
100% With caesium carbonate; In dichloromethane; at 20℃; for 1h; To a solution of <strong>[143809-21-6]5-methyl-2,3-dihydrobenzo[b][1,4]dioxine-6-carboxylic acid</strong> (2.000 g, 9.78 mmol) in anh. DMF (20 mL) at RT are added cesium carbonate (6.376 g, 19.60 mmol) and iodomethane (1.23 mL, 19.60 mmol) and the mixture is stirred at RT for lh. Water and Et20 are added and the layers are separated. Theaqueous layer is extracted twice with Et20 and the combined organic layers are washed with brine, dried over anh. Mg504, filtered and concentrated under reduced pressure. Purification by FC (from heptane to heptane/EtOAc = 1/1) affords methyl 5-methyl-2,3-dihydrobenzo[b][1 ,4]dioxine-6-carboxylate as a colorless solid (2.054 g, quantitative). LC-MS B: tR = 0.89 mm; [M+H] = 209.20.
  • 15
  • [ 143809-21-6 ]
  • 6-chloro-N-(2-(5-methyl-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)ethyl)pyrimidin-4-amine [ No CAS ]
  • 16
  • [ 143809-21-6 ]
  • 2-(5-methyl-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)ethan-1-amine [ No CAS ]
  • 17
  • [ 143809-21-6 ]
  • (E)-5-methyl-6-(2-nitrovinyl)-2,3-dihydrobenzo[b][1,4]dioxine [ No CAS ]
  • 18
  • [ 143809-21-6 ]
  • [ 143809-24-9 ]
  • 19
  • [ 143809-21-6 ]
  • (5-methyl-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)methanol [ No CAS ]
 

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