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Chemical Structure| 2840-26-8 Chemical Structure| 2840-26-8
Chemical Structure| 2840-26-8

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CAS No.: 2840-26-8

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Product Citations

Product Citations

Rathje, Oliver H. ; Perryman, Lara ; Payne, Richard J. ; Hamprecht, Dieter W. ;

Abstract: Mixed Lineage Kinase domain-Like pseudokinase (MLKL) is implicated in a broad range of diseases due to its role as the ultimate effector of necroptosis and has therefore emerged as an attractive drug target. Here, we describe the development of PROteolysis TArgeting Chimeras (PROTACs) as a novel approach to knock down MLKL through chem. means. A series of candidate degraders were synthesized from a high-affinity pyrazole carboxamide-based MLKL ligand leading to the identification of a PROTAC mol. that effectively degraded MLKL and completely abrogated cell death in a TSZ model of necroptosis. By leveraging the innate ability of these PROTACs to degrade MLKL in a dose-dependent manner, the quant. relationship between MLKL levels and necroptosis was interrogated. This work demonstrates the feasibility of targeting MLKL using a PROTAC approach and provides a powerful tool to further our understanding of the role of MLKL within the necroptotic pathway.

Alternative Products

Product Details of [ 2840-26-8 ]

CAS No. :2840-26-8
Formula : C8H9NO3
M.W : 167.16
SMILES Code : O=C(O)C1=CC=C(OC)C(N)=C1
MDL No. :MFCD00002521
InChI Key :FDGAEAYZQQCBRN-UHFFFAOYSA-N
Pubchem ID :17823

Safety of [ 2840-26-8 ]

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

Calculated chemistry of [ 2840-26-8 ] Show Less

Physicochemical Properties

Num. heavy atoms 12
Num. arom. heavy atoms 6
Fraction Csp3 0.12
Num. rotatable bonds 2
Num. H-bond acceptors 3.0
Num. H-bond donors 2.0
Molar Refractivity 44.3
TPSA ?

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

72.55 ?2

Lipophilicity

Log Po/w (iLOGP)?

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

0.81
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

0.76
Log Po/w (WLOGP)?

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

0.98
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.

-0.37
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

0.5
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

0.54

Water Solubility

Log S (ESOL):?

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

-1.59
Solubility 4.27 mg/ml ; 0.0255 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.

-1.86
Solubility 2.29 mg/ml ; 0.0137 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

-1.53
Solubility 4.91 mg/ml ; 0.0294 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.

-6.78 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

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)

 1.19

Application In Synthesis of [ 2840-26-8 ]

* 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 [ 2840-26-8 ]

[ 2840-26-8 ] Synthesis Path-Downstream   1~4

  • 1
  • [ 24424-99-5 ]
  • [ 2840-26-8 ]
  • [ 306937-12-2 ]
YieldReaction ConditionsOperation in experiment
65% With sodium hydroxide; In tetrahydrofuran; at 20℃; for 12.5h;Cooling with ice; 3-Amino-p-anisic acid (1) (20.0 g,119 mmol)was suspended in asolution of NaOH (1 mol/L, 180 mL) and THF (150 mL). The mixturewas cooled in an ice bath. A solution of di-tert-butyl dicarbonate(Boc)2O (104.4 g, 479 mmol) in THF (70 mL) was then addeddropwise over a period of 30 min under stirring. The ice-bath wasremoved after dropping and the mixture was stirred for another12 h at room temperature. Thereafter, the THF was removed invacuo, and the remaining aqueous solution was diluted with water.The resulting mixture was extracted three times with AcOEt(70mL 3). The aqueous layer was acidified with concentrated HClto neutralize PH to 4e5 and extracted with AcOEt (80 mL 3). Thecombined organic layers were washed with water, and dried overNa2SO4. Then filtration and concentration in vacuo gave (2) (20.78 g,65%) as off-white solid, which was used for the next step withoutfurther purification.
65% With sodium hydroxide; In tetrahydrofuran; at 20℃; for 5.0h;Cooling with ice; 20 g of 3-amino-4-methoxybenzoic acid (Compound 1) was dissolved in 180 ml of sodium hydroxide solution, 150 ml of tetrahydrofuran was added thereto, and a solution of BOC anhydride (104,4 g) in tetrahydrofuran (70 ml) was added dropwise to the ice bath The ice bath was removed and stirred at room temperature for 5 hours. After the completion of the stirring, the product was extracted with 80 ml of ethyl acetate, and the organic phase was combined and washed with saturated sodium chloride, and the mixture was washed with anhydrous sulfuric acid Sodium dry.Rotate the liquid to give 20.78 g of an off-white solid 3 - ((tert-butoxycarbonyl) amino) -4-methoxybenzoic acid (Compound 2) in 65% yield;
50% 1) 1.0 g (6 mmol) 3-amino-4-methoxybenzoic acid is dissolved in 10 ml 4N NaOH aqueous solution, 2.5 ml (11 mmol) tert-butyric anhydride is slowly dropped into the solution. The mixture is heated up to 50 C. until the reaction finishes and the resulted alkaline solution is quickly acidified to pH=2 using 1 N hydrochloric acid and extracted three times using chloroform. The chloroform extract is pooled and desiccated with anhydrate sodium sulfate, subsequently condensed to dryness to obtain 0.8 g off- white solid, yield: 50%.
  • 2
  • [ 40757-20-8 ]
  • [ 2840-26-8 ]
  • 3
  • [ 2840-26-8 ]
  • [ 62-53-3 ]
  • [ 120-35-4 ]
YieldReaction ConditionsOperation in experiment
76% 4.2.5.1 3-Amino-4-methoxy-N-phenylbenzamide (1-M5) A total of 0.17 mL (0.18 mmol) of DIC and 0.24 g (0.18 mmol) of HOBt were added to a dichloromethane solution of 0.20 g (0.12 mmol) of 1 at room temperature, and the reaction mixture was stirred for 0.5 h. Then, 0.13 mL (0.14 mmol) of aniline was added to the mixture. After approximately 3 h, 0.5 N NaOH was added to the solution. The lower layer was isolated, and 0.5 N HCl was added until the aqueous solution was neutral. The dichloromethane layer was washed three times with 10 mL of water, and then MgSO4 was added. After 2 h, the solution was filtered, and the solvent was removed. The residue was purified by column chromatography on silica gel (eluent: petroleum ether:ethyl acetate = 3:1) to yield the desired compound as a white solid (yield: 76%). Mp: 197-198 C. 1H NMR (400 MHz, DMSO-d6) delta (ppm): 9.92 (1H, s, NH), 7.74 (2H, d, J = 9.0 Hz, PhH), 7.32 (2H, m, PhH), 7.21 (2H, d, J = 8.0 Hz, PhH), 7.06 (1H, m, PhH), 6.88 (1H, d, J = 8.0 Hz, PhH), 4.90 (2H, br s, NH2), 3.83 (3H, s, OCH3). ESI-MS (m/z): 243 (M + H)+.
  • 4
  • [ 87-03-6 ]
  • [ 2840-26-8 ]
  • [ 98-32-8 ]
  • C34H26N6O14S3 [ No CAS ]
YieldReaction ConditionsOperation in experiment
To 100 parts of 18 ° C ~ 22 ° C water was added 3.41 parts of 3-amino-4-methoxy benzoic acid and 4.71 Parts of 35percent hydrochloric acid. The resulting solution was cooled to 5 ° C. Thereto was added 1.46 parts of sodium nitrite, And the diazotization mixture for 2 hours to obtain a reaction solution. To 160 parts 18° C ~ 22 ° C water was added 12.22 parts of 7,7'-imino-bis (4-hydroxy-2-sulfonic acid), and treated with Sodium carbonate The pH of the mixture was adjusted to 7.0, and the mixture was cooled to 5 ° C. By the addition And sodium carbonate while maintaining the pH of 7.0 to 7.5, with two hours to the resulting solution was added the above reaction It should be added. Then, the mixture was further stirred for 5 hours. 80 parts of water were added to 3.76 parts of 3- amino-4-hydroxybenzenesulfonamide and 4.88 parts of 35percent hydrochloric acid, and the solution was cooled to 0 ° C. Its 1.46 parts of sodium nitrite was added, and the mixture was subjected to diazotization of 2 hours, thereby obtaining While the reaction solution was then maintained by addition of sodium carbonate to pH 7.0 to 8.0, with 2 H it was added to the above reaction solution was stirred for 5 hours after the. By the addition of sodium carbonate while pH was maintained at 8.0 to 9.0, and the solution was stirred for a further 2 hours. By the addition of 100 parts of Salt and the reaction solution was subjected to salting, and the precipitate was collected by filtration (i.e., the Compounds of formula (11) shown below represented).
 

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