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Chemical Structure| 695-87-4 Chemical Structure| 695-87-4
Chemical Structure| 695-87-4
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Product Details of [ 695-87-4 ]

CAS No. :695-87-4
Formula : C5H6N2O2
M.W : 126.11
SMILES Code : COC1C=NC=NC1=O
MDL No. :MFCD02685611

Safety of [ 695-87-4 ]

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

Calculated chemistry of [ 695-87-4 ] Show Less

Physicochemical Properties

Num. heavy atoms 9
Num. arom. heavy atoms 0
Fraction Csp3 0.4
Num. rotatable bonds 1
Num. H-bond acceptors 4.0
Num. H-bond donors 0.0
Molar Refractivity 39.34
TPSA ?

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

51.02 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

1.08
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

-0.66
Log Po/w (WLOGP)?

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

-1.12
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.

-0.62
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

1.28
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

-0.01

Water Solubility

Log S (ESOL):?

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

-0.14
Solubility 91.3 mg/ml ; 0.724 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.

0.06
Solubility 146.0 mg/ml ; 1.15 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

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

-0.36
Solubility 54.8 mg/ml ; 0.435 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

No
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.

-7.54 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)

3.42

Application In Synthesis [ 695-87-4 ]

* 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 [ 695-87-4 ]

[ 695-87-4 ] Synthesis Path-Downstream   1~18

  • 1
  • [ 695-87-4 ]
  • [ 51793-91-0 ]
  • 2
  • [ 6939-11-3 ]
  • [ 695-87-4 ]
  • 4
  • [ 695-87-4 ]
  • [ 108-24-7 ]
  • [ 109113-83-9 ]
  • [ 109113-82-8 ]
  • 5
  • [ 695-87-4 ]
  • [ 108-24-7 ]
  • 1-Acetyl-5-methoxy-1H-pyrimidin-4-one [ No CAS ]
  • 7
  • [ 31458-33-0 ]
  • benzhydroximic acid chloride [ No CAS ]
  • 5-methoxypyrimidin-4(3H)-one [ No CAS ]
  • 6-methoxy-3,9-diphenyl-6aH-bis[1,2,4]oxadiazolo[4,5-a:4',5'-c]pyrimidine [ No CAS ]
  • [ 695-87-4 ]
  • 10
  • [ 6939-11-3 ]
  • [ 695-87-4 ]
YieldReaction ConditionsOperation in experiment
69% With water; nickel; for 8h;Heating / reflux; 3.9 g of Raney nickel (slurry) are added to a hot solution of 4.1 g (0.026 mol) of 2-mercapto- 5-methoxy-3H-pyrimidin-4-one (Example P1) in 60 ml of water. After vigorous stirring for 8 hours at reflux temperature, the reaction mixture is filtered and the combined filtrates and washing fractions are concentrated by evaporation on a hot water bath. The residue obtained is recrystallised from ethanol in the presence of activated carbon. The desired target compound is obtained in a yield of 1.9 g (69 % of theory) in the form of needles having a melting point of 206-208C. 1 H NMR (300 MHz, DMSO-d6) : 7.828 ppm (s, 1H) ; 7.527 ppm (s, 1H) ; 3.728 ppm (s, 3H).
  • 11
  • [ 695-87-4 ]
  • [ 695-85-2 ]
YieldReaction ConditionsOperation in experiment
58% With N,N-diethylaniline; trichlorophosphate; at 115℃; for 3h; A suspension of 1.9 g (0.015 mol) of <strong>[695-87-4]5-methoxy-3H-pyrimidin-4-one</strong> (Example P2) in 4.2 ml (0.046 mol) of phosphorus oxychloride and 5.0 mi (0.031 mol) of N, N-diethylaniline is heated at 115C for 3 hours. The dark, homogeneous mixture obtained is hydrolyse by adding crushed ice, the temperature being kept below 30C. Extraction with diethyl ether, drying of the combined organic ethereal phases over sodium sulfate, and purification on a silica gel column (eluant : ethyl acetate/n-hexane 1/9) yields the desired target compound in a yield of 1.3 g (58 % of theory). Further purification by means of sublimation at 80-85C/15 Torr yields the desired title compound, having a melting point of 63-64C. oh NMR (300 MHz, Ceci3) : 8.635 ppm (s, 1H) ; 8.321 ppm (s, 1H) ; 4.025 ppm (s, 3H).
  • 12
  • [ 107-31-3 ]
  • [ 6290-49-9 ]
  • [ 3473-63-0 ]
  • [ 695-87-4 ]
  • 13
  • [ 695-87-4 ]
  • ethyl 3-(4-bromophenyl)-2-(5-methoxy-6-oxopyrimidin-1(6H)-yl)propanoate [ No CAS ]
  • 14
  • [ 695-87-4 ]
  • 3-(4-bromophenyl)-2-(5-methoxy-6-oxopyrimidin-1(6H)-yl)propanoic acid [ No CAS ]
  • 15
  • [ 695-87-4 ]
  • 3-(4-bromophenyl)-N-methoxy-2-(5-methoxy-6-oxopyrimidin-1(6H)-yl)-N-methylpropanamide [ No CAS ]
  • 16
  • [ 695-87-4 ]
  • 3-(1-(4-bromophenyl)-3-oxobutan-2-yl)-5-methoxypyrimidin-4(3H)-one [ No CAS ]
  • 17
  • [ 695-87-4 ]
  • 5-methoxy-3-(1-(4-((4-(morpholinomethyl)phenyl)ethynyl)phenyl)-3-oxobutan-2-yl)pyrimidin-4(3H)-one [ No CAS ]
  • 18
  • [ 695-87-4 ]
  • [ 105-36-2 ]
  • ethyl 2-(5-methoxy-6-oxopyrimidin-1(6H)-yl)acetate [ No CAS ]
YieldReaction ConditionsOperation in experiment
81.2% With caesium carbonate; In dimethyl sulfoxide; at 25℃; for 1h; To a solution of <strong>[695-87-4]5-methoxypyrimidin-4(3H)-one</strong>, 1 (2 g, 0.0158 mol) in DMSO (10 mL), Cs2CO3 (15.4 g, 0.0475 mol) was added followed by ethyl bromoacetate (3.97 g, 0.0237 mol) and stirred at 25C for lh. After completion of the reaction, the reaction mixture was diluted with water and extracted with EtOAc. The aqueous layer was extracted with EtOAc (2X100 mL). The combined organic layers were washed with brine and organic layer was dried over anhydrous Na2 SO4, filtered and concentrated under reduced pressure to get (2.6 g, 81.2%) of 2. This was taken to the next step without further purification.UPLC = Calculated for C9H12N2O4 is 212.21, Observed = 213.2 [M+H]
 

Historical Records

Technical Information

Categories

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