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Chemical Structure| 518057-72-2 Chemical Structure| 518057-72-2

Structure of 518057-72-2

Chemical Structure| 518057-72-2

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Product Details of [ 518057-72-2 ]

CAS No. :518057-72-2
Formula : C7H7FN2O
M.W : 154.14
SMILES Code : O=C(N)C1=CC(N)=CC=C1F
MDL No. :MFCD03094256
InChI Key :DGQLTQZWCJJIRU-UHFFFAOYSA-N
Pubchem ID :2778899

Safety of [ 518057-72-2 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H332-H335
Precautionary Statements:P261-P280-P305+P351+P338

Computational Chemistry of [ 518057-72-2 ] Show Less

Physicochemical Properties

Num. heavy atoms 11
Num. arom. heavy atoms 6
Fraction Csp3 0.0
Num. rotatable bonds 1
Num. H-bond acceptors 2.0
Num. H-bond donors 2.0
Molar Refractivity 38.9
TPSA ?

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

69.11 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

0.57
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

0.64
Log Po/w (WLOGP)?

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

0.93
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.

1.02
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

0.68
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

0.77

Water Solubility

Log S (ESOL):?

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

-1.54
Solubility 4.48 mg/ml ; 0.0291 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.

-1.67
Solubility 3.32 mg/ml ; 0.0215 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

-1.89
Solubility 1.98 mg/ml ; 0.0128 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.

-6.79 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

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)

1.07

Application In Synthesis of [ 518057-72-2 ]

* 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 [ 518057-72-2 ]

[ 518057-72-2 ] Synthesis Path-Downstream   1~35

  • 1
  • [ 518057-72-2 ]
  • [ 122775-35-3 ]
  • [ 298-12-4 ]
  • [ 960231-96-3 ]
YieldReaction ConditionsOperation in experiment
46% With N,N-dimethyl-formamide; In acetonitrile; at 100℃; for 0.333333h;Microwave irradiation; A mixture of <strong>[518057-72-2]3-amino-6-fluorobenzamide</strong> (85 mg, 0.5 mmol), 3,4-dimethoxyphenylboronic acid (91 mg, 0.5 mmol) and glyoxylic acid monohydrate (46 mg, 0.5 mmol) in acetonitrile (2.0 mL) and DMF (0.2 mL) was heated at 100 C. for 20 min. in a microwave reactor. After removal of solvent, the crude was triturated with methylene chloride. The precipitate formed was collected by filtration and washed with methylene chloride to give 13A after drying, yield: 46%. 1H NMR (400 MHz, Methanol-d4) delta ppm 3.81 (s, 3H) 3.82 (s, 3H) 4.92 (s, 1H) 6.83-6.89 (m, 1H) 6.93 (d, J=8.35 Hz, 1H) 6.96-7.02 (m, 1H) 7.03-7.07 (m, 1H) 7.10 (d, J=1.76 Hz, 1H) 7.15 (dd, J=5.93, 2.86 Hz, 1H), LCMS: 349 (M+1).
  • 2
  • [ 693-58-3 ]
  • [ 518057-72-2 ]
  • 2-fluoro-5-(nonylamino)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
30% With potassium carbonate; In acetonitrile; for 4h;Reflux; The 2-fluoro-5-aminobenzoic acid amide [<strong>[518057-72-2]2-fluoro-5-aminobenzamide</strong>] (0.20g, 1 . 3mmol) and bromo nonane (0.30g, 1 . 4mmol) solution in acetonitrile (20 ml) is evenly stirring, by adding potassium carbonate K 2 CO 3 (0.25g, 1 . 8mmol) in. Heating to reflux the reaction mixture 4 hours. In the thin-layer chromatography (TLC) display raw materials after the disappear completely, through a small section of the silicon gel layer. Reducing pressure and evaporating the solvent, the use of silica gel for rapid column chromatography. The resulting compound (0.11g) to yield of 30%
30% With potassium carbonate; In acetonitrile; for 4h;Reflux; To a well-stirred solution of <strong>[518057-72-2]2-fluoro-5-aminobenzamide</strong> (43b)(0.20 g, 1.3 mmol) and 1-bromononane (0.30 g, 1.4 mmol) in ACN(20 mL) was added K2CO3 (0.25 g, 1.8 mmol). The reaction mixture was heated to reflux for 4 h. After the complete disappearance ofstarting material as indicated by TLC, the reaction mixture wassubjected to pass through a short pad of silica gel. The filtrate obtainedwas evaporated under reduced pressure and subjected topurification by flash column chromatography on silica gel. Thetitled compound (0.11 g) was obtained in 30% yield. 1H NMR(400 MHz, CDCl3) d 7.23e7.34 (m, 1H), 6.94 (d, J 8.8 Hz, 1H), 6.76(s, 1H), 6.62e6.71 (m, 1H), 6.28 (br. s., 1H), 3.70 (br. s., 1H), 3.11 (t,J 7.0 Hz, 2H),1.61 (quin, J 7.0 Hz, 2H),1.22e1.44 (m,12H), 0.89 (t,J 6.6 Hz, 3H); 13C NMR (101 MHz, CDCl3) d 165.6 (s, CONH2), 153.7(d, JCF 232 Hz, C2), 145.4 (d, JCF 2.0 Hz, C5), 120.1 (d, JCF 26 Hz,C1), 117.4 (d, JCF 9.1 Hz, C4), 116.5 (dd, JCF 12 Hz, C3), 114.3 (d,JCF 9.1 Hz, C6), 44.4, 31.9, 29.5, 29.4, 29.3, 27.1, 22.7, 14.1; LRMS(ESI) m/z 281 (M H, 100), 303 (M Na, 50); HRMS (ESI) calcdfor C16H26N2OF (M H) 281.2029, found 281.2033.
  • 3
  • [ 518057-72-2 ]
  • 2-fluoro-6-[2-methoxy-4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzoyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-2-fluoro-6-[2-methoxy-4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
59% With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 0 - 20℃; for 2h; To a solution of 5-amino-2-fluoro-benzamide (111 mg, 0.724 mmol) and DIEA (378 mu, 2.17 mmol) in dichloromethane (2 inL) at 0 C was added a solution of 2-fluoro-6-[2-methoxy-4- (trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzoyl chloride (313 mg, 0.723 mmol) in dichloromethane (2 mL) slowly, and the reaction was stirred at room temperature for 2 hours. The solvent was evaporated by blowing down with nitrogen. The crude product was dissolved in DMSO, filtered and purified by reverse phase HPLC to yield N-(3 -carbamoyl -4-fluoro-phenyl)-2-fluoro-6- [2- methoxy-4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzamide (234 mg, 59%). ESI-MS m/z calc. 550.0775, found 551.0 (M+l)+; retention time (Method C): 2.56 minutes (5 minute run).
  • 4
  • [ 518057-72-2 ]
  • 2-fluoro-6-[2-(trideuteriomethoxy)-4-(trifluoromethoxy)phenoxy]-3-(trifluoromethoxy)benzoic acid [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-2-fluoro-6-[2-(trideuteriomethoxy)-4-(trifluoromethoxy)phenoxy]-3-(trifluoromethoxy)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
16% 2-Fluoro-6-[2-(trideuteriomethoxy)-4-(trifluoromethoxy)phenoxy]-3- (trifluoromethoxy)benzoic acid (55 mg, 0.13 mmol) and HATU (49 mg, 0.13 mmol) were combined in DMF (1 mL) and DIEA (90 mu, 0.5167 mmol), stirred for 5 min, and then treated with 5-amino-2-fluoro- benzamide (24 mg, 0.16 mmol). The reaction was stirred at 45 C for 30 min. Reverse phase HPLC purification provided N-(3-carbamoyl-4-fluoro-phenyl)-2-fluoro-6-[2-(trideuteriomethoxy)-4- (trifluoromethoxy)phenoxy]-3-(trifluoromethoxy)benzamide (11.6 mg, 16%). ESI-MS m/z calc. 569.09, found 570.2 (M+l)+; retention time (Method B): 1.8 minutes (3 minute run). 'H NMR (400 MHz, DMSO-d6) delta 10.98 (s, 1H), 7.99 (dd, J = 6.4, 2.8 Hz, 1H), 7.78 (ddd, J = 9.0, 4.4, 2.8 Hz, 1H), 7.72 (s, 1H), 7.67 (s, 1H), 7.59 (t, J = 9.0 Hz, 1H), 7.30 (dd, J = 9.2, 1.7 Hz, 2H), 7.22 (d, J = 2.8 Hz, 1H), 7.05 - 6.99 (m, 1H), 6.61 (dd, J = 9.2, 1.6 Hz, 1H) ppm.
  • 5
  • [ 518057-72-2 ]
  • 3-fluoro-5-[4-(trifluoromethoxy)phenoxy]-2-(trifluoromethyl)pyridine-4-carbonyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-3-fluoro-5-[4-(trifluoromethoxy)phenoxy]-2-(trifluoromethyl)pyridine-4-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
26% With N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; dichloromethane; at 0 - 20℃; for 1h;Inert atmosphere; A solution of 5-amino-2-fluoro-benzamide (78 mg, 0.51 mmol) and DIEA (250 mu, 1.44 mmol) in THF (3 mL) at 0 C was treated with a solution of 3-fluoro-5-[4-(trifluoromethoxy)phenoxy]-2- (trifluoromethyl)pyridine-4-carbonyl chloride (200 mg, 0.496 mmol) in THF (3 mL)/dichloromethane (2 mL) under N2 atmosphere. The reaction mixture was allowed to warm to room temperature and stirred for 1 hour. The mixture was diluted with water and extracted with dichloromethane. The organic layer was washed with 1 M HC1 (2x), dried over MgSO/t, filtered and concentrated in vacuo. Silica gel chromatography (0-80% ethyl acetate/hexanes) provided N-(3-carbamoyl-4-fluoro-phenyl)-3-fluoro-5-[4- (trifluoromethoxy)phenoxy]-2-(trifluoromethyl)pyridine-4-carboxamide (68 mg, 26%). ESI-MS m/z calc. 521.06, found 522.1 (M+l)+; retention time (Method B): 1.74 minutes (3 minute run). NMR (400 MHz, DMSO-d6) 5 11.18 (s, 1H), 8.43 (s, 1H), 7.90 (dd, J = 6.4, 2.8 Hz, 1H), 7.78 - 7.67 (m, 3H), 7.50 - 7.43 (m, 2H), 7.41 - 7.35 (m, 2H), 7.30 (dd, J = 10.1, 8.9 Hz, 1H) ppm.
  • 6
  • [ 518057-72-2 ]
  • racemic trans-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]-6-(2-methylcyclopropyl)pyridine-3-carboxylic acid [ No CAS ]
  • racemic trans-N-(3-carbamoyl-4-fluorophenyl)-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]-6-(2-methylcyclopropyl)pyridine-3-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
95% Racemic fr 5-4-[2-Methoxy-4-(trifluoromethoxy)phenoxy]-6-(2- methylcyclopropyl)pyridine-3-carboxylic acid (103 mg, 0.269 mmol) and HATU (103 mg, 0.271 mmol) were combined in DMF (1 mL) and DIEA (94 mu, 0.54 mmol) and stirred for 5 minutes. 5-Amino-2- fluoro-benzamide (62 mg, 0.40 mmol) was added in one portion and the reaction stirred at 45 C for 1 hour. The reaction was diluted with ethyl acetate and washed with 50% saturated aqueous NaHCC and brine, dried over Na2S04, filtered, and concentrated in vacuo. Silica gel chromatography (0-15% methanol/dichloromethane) provided racemic fras-N-(3-carbamoyl-4-fluoro-phenyl)-4-[2-methoxy-4- (trifluoromethoxy)phenoxy]-6-(2-methylcyclopropyl)pyridine-3-carboxamide (135 mg, 95%). ESI-MS m/z calc. 519.14, found 520.2 (M+l)+; retention time (Method B): 1.36 minutes (3 minute run). 'H NMR(400 MHz, DMSO-d6) delta 10.38 (s, 1H), 8.54 (s, 1H), 7.99 (dd, J = 6.4, 2.8 Hz, 1H), 7.82 (ddd, J = 8.9, 4.4, 2.8 Hz, 1H), 7.70 (s, 1H), 7.67 (s, 1H), 7.45 (d, J = 8.8 Hz, 1H), 7.32 - 7.21 (m, 2H), 7.07 (ddd, J = 8.8, 2.7, 1.3 Hz, 1H), 6.55 (s, 1H), 3.80 (s, 3H), 1.81 (dt, J = 8.5, 4.4 Hz, 1H), 1.38 - 1.25 (m, 1H), 1.16 - 1.11 (m, 1H), 1.10 (d, J = 6.0 Hz, 3H), 0.74 (ddd, J = 9.0, 5.9, 3.6 Hz, 1H) ppm. SFC purification (36% methanol/64% CO2, ChiralPak IG (250 x 21.2 mm) 5muiotaeta column, flow =70 mL/min) provided separated enantiomers re/-N-(3-carbamoyl-4-fluoro-phenyl)-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]-6- ((lS,2S)-2-methylcyclopropyl)pyridine-3-carboxamide (113) and re/-N-(3-carbamoyl-4-fluoro-phenyl)-4- [2-methoxy-4-(trifluoromethoxy)phenoxy]-6-((lR,2R)-2-methylcyclopropyl)pyridine-3-carboxamide (114). The absolute stereochemistry of enantiomers 113 and 114 was not determined.
  • 7
  • [ 518057-72-2 ]
  • 6-tert-butyl-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxylic acid [ No CAS ]
  • 6-tert-butyl-N-(3-carbamoyl-4-fluorophenyl)-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
57% With 4-methyl-morpholine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; In N,N-dimethyl-formamide; for 20h; To a solution of 6-teri-butyl-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]pyridine-3- carboxylic acid (prepared as described in Example 67, Step 2, 200 mg, 0.519 mmol), 5-amino-2-fluoro- benzamide (80 mg, 0.52 mmol) and HATU (218 mg, 0.573 mmol) in DMF (2 inL) was added 4- methylmorpholine (200 mu, 1.82 mmol) and the reaction mixture was stirred for 20 hours. The reaction mixture was diluted with water and the aqueous layer was extracted by ethyl acetate. The organic layer was washed with brine, dried over MgSO/t, filtered and concentrated in vacuo. The crude material was purified by HPLC (1-99% acetonitrile/5 mM HC1)). The product fractions were neutralized with saturated aqueous NaHCC and extracted with dichloromethane. The organic layer was dried over MgSO/t, filtered and concentrated to obtain 6-fert-butyl-N-(3-carbamoyl-4-fluoro-phenyl)-4-[2-methoxy- 4-(trifluoromethoxy)phenoxy]pyridine-3-carboxamide (155 mg, 57%). ESI-MS m/z calc. 521.16, found 522.2 (M+l)+; retention time (Method B): 1.49 minutes (3 minute run). NMR (400 MHz, DMSO-d6) delta 10.54 (s, 1H), 8.66 (s, 1H), 8.00 (dd, J = 6.5, 2.8 Hz, 1H), 7.84 - 7.78 (m, 1H), 7.69 (d, J = 14.6 Hz, 2H), 7.42 (d, J = 8.8 Hz, 1H), 7.30 - 7.22 (m, 2H), 7.06 (dd, J = 9.0, 2.6 Hz, 1H), 6.55 (s, 1H), 3.78 (s, 3H), 1.21 (s, 9H) ppm.
  • 8
  • [ 518057-72-2 ]
  • 4-[2-methoxy-4-(trifluoromethoxy)phenoxy]-6-(1-methylcyclopropyl)pyridine-3-carboxylic acid [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]-6-(1-methylcyclopropyl)pyridine-3-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
58% With 4-methyl-morpholine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; In N,N-dimethyl-formamide; for 1h; To a solution of 4-[2-methoxy-4-(trifluoromethoxy)phenoxy]-6-(l- methylcyclopropyl)pyridine-3-carboxylic acid (127 mg, 0.331 mmol), 5-amino-2-fluoro-benzamide, (51 mg, 0.33 mmol) and HATU (139 mg, 0.364 mmol) in DMF (1.3 mL) was added 4-methylmorpholine (109 mu, 0.994 mmol) and the reaction mixture was stirred for 1 hour. The reaction mixture was filtered and purified by HPLC (1-99% acetonitrile/5 mM HCl). Product fractions were neutralized with saturated aqueous NaHCC . The fractions were extracted with dichloromethane, dried over MgSO/t, filtered and concentrated to provide N-(3-carbamoyl-4-fluoro-phenyl)-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]- 6-(l-methylcyclopropyl)pyridine-3-carboxamide (100 mg, 58%). ESI-MS m/z calc. 519.14, found 520.1 (M+l)+; retention time (Method B): 1.52 minutes (3 minute run). 'H NMR (400 MHz, DMSO-d6) delta 10.43 (s, 1H), 8.60 (s, 1H), 7.98 (dd, J = 6.5, 2.8 Hz, 1H), 7.81 (ddd, J = 7.6, 4.4, 2.8 Hz, 1H), 7.69 (d, J = 13.0 Hz, 2H), 7.44 (d, J = 8.8 Hz, 1H), 7.33 - 7.22 (m, 2H), 7.07 (ddd, J = 8.7, 2.7, 1.3 Hz, 1H), 6.49 (s, 1H), 3.79 (s, 3H), 1.27 (s, 3H), 1.15 (q, J = 3.4 Hz, 2H), 0.82 (q, J = 3.6 Hz, 2H) ppm.
  • 9
  • [ 518057-72-2 ]
  • 3-(difluoromethyl)-2-fluoro-6-[4-(trifluoromethoxy)phenoxy]benzoyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-3-(difluoromethyl)-2-fluoro-6-[4-(trifluoromethoxy)phenoxy]benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
38% With N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; dichloromethane; at 0 - 20℃; for 16h; To a solution of 5-amino-2-fluoro-benzamide (60 mg, 0.39 mmol) and DIEA (150 mu, 0.861 mmol) in THF (2 mL) at 0 C was added a suspension of 3-(difluoromemyl)-2-fluoro-6-[4- (trifluoromethoxy)phenoxy]benzoyl chloride (150 mg, 0.390 mmol) in dichloromethane (1 mL). The reaction mixture was allowed to warm to room temperature and stirred for 16 hours. The reaction mixture was partitioned between water and dichloromethane. The organic layer was washed with 1 M HCl (2x), dried over MgSO/t, filtered and concentrated in vacuo. Silica gel chromatography (0-50% ethyl acetate/hexanes) provided N-(3-carbamoyl-4-fluoro-phenyl)-3-(difluoromethyl)-2-fluoro-6-[4- (trifluoromethoxy)phenoxy]benzamide (75 mg, 38%). ESI-MS m/z calc. 502.08, found 503.1 (M+l)+; retention time (Method B): 1.72 minutes ( 3 minute run). NMR (400 MHz, DMSO-d6) delta 10.98 (s, 1H), 7.96 (dd, J = 6.4, 2.8 Hz, 1H), 7.78 - 7.66 (m, 4H), 7.46 (dq, J = 7.7, 1.0 Hz, 2H), 7.42 - 7.10 (m, 4H), 6.89 (d, J = 8.7 Hz, 1H) ppm.
  • 10
  • [ 518057-72-2 ]
  • 1,1-difluoro-5-[4-(trifluoromethoxy)phenoxy]indane-4-carbonyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-1,1-difluoro-5-[4-(trifluoromethoxy)phenoxy]indane-4-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
46% With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 0 - 10℃; for 2.16667h; A slurry of 5-amino-2-fluoro-benzamide (42 mg, 0.27 mmol) in dichloromethane (1 mL) and DIEA (63 nL, 0.36 mmol) was cooled to 0 C. A slurry of cold l, l-difluoro-5-[4- (trifluoromethoxy)phenoxy]indane-4-carbonyl chloride (71 mg, 0.18 mmol) in dichloromethane (1 mL) was added dropwise to the stirring amine solution. The reaction mixture was stirred at 0 C for 10 minutes then allowed to warm to room temperature over 2 hours. The reaction was concentrated in vacuo and purified by HPLC (10-99% acetonitrile/5 mM HC1) to provide N-(3-carbamoyl-4-fluoro-phenyl)-l,l- difluoro-5-[4-(trifluoromethoxy)phenoxy]indane-4-carboxamide (42.5 mg, 46%). ESI-MS m/z calc. 510.10, found 511.0 (M+l)+; retention time (Method C): 2.51 minutes (5 minute run). NMR (400 MHz, DMSO-d6) delta 10.69 (s, 1H), 7.96 (dd, J = 6.4, 2.8 Hz, 1H), 7.77 - 7.70 (m, 1H), 7.70 - 7.62 (m, 3H), 7.55 - 7.31 (m, 2H), 7.29 - 7.17 (m, 3H), 7.01 (d, J = 8.5 Hz, 1H), 3.21 - 2.98 (m, 2H), 2.78 - 2.59 (m, 2H) ppm.
  • 11
  • [ 518057-72-2 ]
  • 6-(1-fluoro-1-methylethyl)-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxylic acid [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-6-(1-fluoro-1-methylethyl)-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
69% With 4-methyl-morpholine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; In N,N-dimethyl-formamide; at 20℃; for 0.333333h; A mixture of 6-(l-fluoro-l-methyl-ethyl)-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxylic acid (142 mg, 0.365 mmol), 5-amino-2-fluoro- benzamide (56 mg, 0.37 mmol), HATU (140 mg, 0.368 mmol) and 4-methylmorpholine (111 mg, 1.10 mmol) in DMF (1.5 mL) was stirred at room temperature for 20 minutes. The reaction mixture was partitioned between ethyl acetate and water. The layers were separated and the organic layer was washed with a saturated aqueous sodium chloride solution (2x). The organic layer was dried over Na2S04, filtered and concentrated in vacuo. Silica gel chromatography (0-60% ethyl acetate/hexanes) provided N- (3-carbamoyl-4-fluoro-phenyl)-6-(l-fluoro-l-methyl-ethyl)-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxamide (134 mg, 69%). ESI-MS m/z calc. 525.13, found 526.2 (M+l)+; retention time (method B): 1.71 minutes (3 minute run). NMR (400 MHz, DMSO-d6) delta 10.65 (s, 1H), 8.70 (d, J = 1.0 Hz, 1H), 8.03 (dd, J = 6.4, 2.8 Hz, 1H), 7.83 (ddd, J = 9.0, 4.4, 2.8 Hz, 1H), 7.70 (d, J = 14.6 Hz, 2H), 7.49 (d, J = 8.8 Hz, 1H), 7.34 - 7.23 (m, 2H), 7.10 (ddt, J = 7.7, 2.7, 1.3 Hz, 1H), 6.64 (d, J = 1.5 Hz, 1H), 3.79 (s, 3H), 1.61 (d, J = 22.3 Hz, 6H) ppm.19F NMR (376 MHz, DMSO-d6) delta -56.86, -119.01 (dt, J = 8.9, 5.5 Hz), -140.24 - -143.39 (m) ppm.
  • 12
  • [ 518057-72-2 ]
  • 3-cyclopropyl-2-fluoro-6-[4-(trifluoromethoxy)phenoxy]benzoyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-3-cyclopropyl-2-fluoro-6-[4-(trifluoromethoxy)phenoxy]benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
14% With N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; dichloromethane; at 0 - 20℃; for 16h; A solution of 5-amino-2-fluoro-benzamide (50 mg, 0.32 mmol) and DIEA (200 mu, 1.15 mmol) in THF (2 mL) was cooled to 0 C and treated with a suspension of 3-cyclopropyl-2-fluoro-6-[4- (trifluoromethoxy)phenoxy]benzoyl chloride (120 mg, 0.3202 mmol) in THF (1 mL)/dichloromethane (1 mL). The reaction mixture was warmed to room temperature and stirred for 16 hours. The reaction was diluted with water and extracted with dichloromethane. The organic layer was washed with 1 M HC1, dried over MgSO/i, filtered and concentrated in vacuo. Silica gel chromatography (0-60% ethyl acetate/hexanes) provided N-(3 -carbamoyl -4-fluoro-phenyl)-3-cyclopropyl -2 -fluoro-6- [4- (trifluoromethoxy)phenoxy]benzamide (24 mg, 14%). ESI-MS m/z calc. 492.11, found 493.1 (M+l)+; retention time (Method B): 1.83 minutes (3 minute run). 'H NMR (500 MHz, DMSO-d6) delta 10.83 (s, 1H), 7.94 (dd, J = 6.6, 2.8 Hz, 1H), 7.74 - 7.62 (m, 3H), 7.36 (d, J = 8.5 Hz, 2H), 7.23 (t, J = 9.5 Hz, 1H), 7.15 - 7.05 (m, 3H), 6.76 (d, J = 8.7 Hz, 1H), 2.05 (tt, J = 8.9, 5.2 Hz, 1H), 1.08 - 0.92 (m, 2H), 0.72 (p, J = 4.9, 4.4 Hz, 2H) ppm.
  • 13
  • [ 518057-72-2 ]
  • 3-(difluoromethyl)-2-fluoro-6-[2-methoxy-4-(trifluoromethoxy)phenoxy]benzoyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-3-(difluoromethyl)-2-fluoro-6-[2-methoxy-4-(trifluoromethoxy)phenoxy]benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
29% With N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; dichloromethane; at 0 - 20℃; for 16h; A solution of 5-amino-2-fluoro-benzamide (29 mg, 0.19 mmol) and DIEA (100 mu, 0.57 mmol) in THF (1 mL) was cooled to 0 C. To this solution was added a suspension of 3- (difluoromethyl)-2-fluoro-6-[2-methoxy-4-(trifluoromethoxy)phenoxy]benzoyl chloride (75 mg, 0.1809 mmol) in THF (1 mL) and dichloromethane (1 mL). The reaction mixture was gradually warmed to room temperature and stirred for 16 hours. The reaction mixture was quenched with water and the aqueous layer was extracted with dichloromethane. The organic phase was washed with IN HCl (2X), dried over MgSO/t, filtered and concentrated. The residue was purified by silica gel chromatography (ethyl acetate/hexane gradient) to afford N-(3-carbamoyl-4-fluoro-phenyl)-3-(difluoromethyl)-2-fluoro-6-[2- methoxy-4-(trifluoromethoxy)phenoxy]benzamide (29 mg, 29%). ESI-MS m/z calc. 532.09, found 533.1 (M+l)+; retention time (Method B): 1.72 minutes (3 minute run). 'H NMR (400 MHz, DMSO-d6) delta 10.95 (s, 1H), 8.00 (dd, J = 6.4, 2.8 Hz, 1H), 7.78 (ddd, J = 8.9, 4.4, 2.8 Hz, 1H), 7.73 (s, 1H), 7.65 (dd, J = 17.3, 9.0 Hz, 2H), 7.34 - 7.23 (m, 3H), 7.15 (t, J = 54.2 Hz, 1H), 7.03 (ddd, J = 8.8, 2.7, 1.2 Hz, 1H), 6.62 (d, J = 8.7 Hz, 1H), 3.79 (s, 3H) ppm.
  • 14
  • [ 518057-72-2 ]
  • 6-(2,2-difluorocyclopropyl)-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxylic acid [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-6-(2,2-difluorocyclopropyl)-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
24% With triethylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; In N,N-dimethyl-formamide; at 20℃; for 2h; A solution of 5-amino-2-fluoro-benzamide (7.0 mg, 0.04 mmol), 6-(2,2- difluorocyclopropyl)-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxylic acid (15 mg, 0.04mmol) and HATU (15 mg, 0.04 mmol) in DMF (225 mu was treated with triethylamine (16 mu,, 0.11 mmol) and stirred at room temperature for 2 hours. The reaction mixture was diluted with DMSO (1 mL) and purified by HPLC (1-99% acetonitrile/5 mM HCl) to obtain N-(3-carbamoyl-4-fluoro-phenyl)-6-(2,2- difluorocyclopropyl)-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxamide (5 mg, 24%). ESI-MS m/z calc. 541.11, found 542.1 (M+l)+; retention time (Method B): 1.56 minutes (3 minute run).
  • 15
  • [ 518057-72-2 ]
  • 3-[2-methoxy-4-(trifluoromethoxy)phenoxy]-5-(trifluoromethyl)pyridine-2-carbonyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-3-[2-methoxy-4-(trifluoromethoxy)phenoxy]-5-(trifluoromethyl)pyridine-2-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
34% With N-ethyl-N,N-diisopropylamine; In dichloromethane; for 0.5h; 5-amino-2-fluoro-benzamide (19 mg, 0.12 mmol) was dissolved in dichloromethane (1 mL) and DIEA (63 mu, 0.36 mmol) and treated with a solution of 3-[2-methoxy-4- (trifluoromethoxy)phenoxy]-5-(trifluoromethyl)pyridine-2-carbonyl chloride (50 mg, 0.12 mmol) in dichloromethane (1 mL). The reaction was stirred for 30 minutes then concentrated in vacuo. The residue was dissolved in DMSO (1 mL) and treated with water to afford a precipitate. The precipitate was filtered, then triturated and filtered sequentially with acetonitrile and diethyl ether. The resulting solid was dried under vacuum to provide N-(3-carbamoyl-4-fluoro-phenyl)-3-[2-methoxy-4- (trifluoromethoxy)phenoxy]-5-(trifluoromethyl)pyridine-2-carboxamide (22 mg, 34%). ESI-MS m/z calc. 533.08, found 534.2 (M+l)+; retention time (Method B): 1.71 minutes (3 minute run). 'H NMR (400 MHz, DMSO-d6) delta 10.90 (s, 1H), 8.82 (dd, J = 1.9, 0.9 Hz, 1H), 8.05 (dd, J = 6.5, 2.8 Hz, 1H), 7.81 (ddd, J = 8.9, 4.5, 2.8 Hz, 1H), 7.72 (s, 1H), 7.68 (s, 1H), 7.62 (d, J = 1.8 Hz, 1H), 7.28 (dt, J = 8.9, 5.1 Hz, 2H), 7.23 (d, J = 2.7 Hz, 1H), 7.01 (ddd, J = 8.9, 2.7, 1.3 Hz, 1H), 3.78 (s, 3H) ppm.
  • 16
  • [ 518057-72-2 ]
  • 2,2-difluoro-6-[2-methoxy-4-(trifluoromethoxy)phenoxy]-1,3-benzodioxole-5-carboxylic acid [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-2,2-difluoro-6-[2-methoxy-4-(trifluoromethoxy)phenoxy]-1,3-benzodioxole-5-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
48% 2,2-Difluoro-6-[2-methoxy-4-(trifluoromethoxy)phenoxy]-l,3-benzodioxole-5-carboxylic acid (30 mg, 0.07 mmol) and HATU (34 mg, 0.09 mmol) were combined in DMF (500 muKappa) and DIEA (27 mu, 0.16 mmol), and stirred for 5 minutes. 5-Amino-2-fluoro-benzamide (12 mg, 0.08 mmol) was added in one portion and the reaction was stirred for 1 hour. HPLC purification (10-99% acetonitrile/5 mM HC1) provided N-(3 -carbamoyl -4-fluoro-phenyl)-2,2-difluoro-6- [2 -methoxy -4-(trifluoromethoxy)phenoxy]-l,3-benzodioxole-5-carboxamide (19 mg, 48%) as a white solid. ESI-MS m/z calc. 544.07, found 544.8 (M+l)+; retention time (Method C): 2.7 minutes (5 minute run).lNMR (400 MHz, DMSO-d6) delta 10.44 (s, 1H), 7.95 (dd, J = 6.4, 2.8 Hz, 1H), 7.80 - 7.60 (m, 4H), 7.24 (dd, J = 10.2, 9.0 Hz, 1H), 7.18 - 7.10 (m, 3H), 7.00 - 6.80 (m, 1H), 3.77 (s, 3H) ppm.
  • 17
  • [ 518057-72-2 ]
  • 6-[2-chloro-4-(trifluoromethoxy)phenoxy]-2-fluoro-3-(trifluoromethyl)benzoyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-6-[2-chloro-4-(trifluoromethoxy)phenoxy]-2-fluoro-3-(trifluoromethyl)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
33% With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 0 - 20℃; To 5-amino-2-fluoro-benzamide (70.54 mg, 0.4576 mmol) and diisopropylethylamine (178 mg, 1.37 mmol) in dichloromethane (2.4 mL) cooled at 0C was added dropwise a solution of 6-[2- chloro-4-(trifluoromethoxy)phenoxy]-2-fluoro-3-(trifluoromethyl)benzoyl chloride (200 mg, 0.46 mmol) in dichloromethane (2.4 mL). The reaction was stirred at room temperature overnight. The crude material was purified by silica gel chromatography (ethyl acetate/hexane gradient) to obtain N-(3- carbamoyl-4-fluoro-phenyl)-6- [2-chloro-4-(trifluoromethoxy)phenoxy] -2-fluoro-3 - (trifluoromethyl)benzamide (85 mg, 33%). ESI-MS m/z calc. 554.03, found 555.0 (M+l)+; retention time (Method B): 1.9 minutes (3 minute run). NMR (400 MHz, DMSO-d6) delta 11.06 (s, 1H), 7.98 (dd, J = 6.4, 2.8 Hz, 1H), 7.95 - 7.82 (m, 2H), 7.80 - 7.59 (m, 3H), 7.52 (d, J = 2.4 Hz, 2H), 7.30 (dd, J = 10.0, 9.1 Hz, 1H), 6.85 (d, J = 8.8 Hz, 1H) ppm.
  • 18
  • [ 518057-72-2 ]
  • 2-fluoro-6-[2-methyl-4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzoyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-2-fluoro-6-[2-methyl-4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
551 mg With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 0 - 20℃; for 16h; To a solution of 5-amino-2-fluoro-benzamide (37 mg, 0.24 mmol) in dichloromethane (1 mL) was added DIEA (approximately 93.06 mg, 125.4 mu, 0.7200 mmol) and the mixture was cooled to 0 C. To this solution was added a cold solution of 2-fluoro-6-[2-methyl-4-(trifluoromethoxy)phenoxy]-3- (trifluoromethyl)benzoyl chloride (100 mg, 0.24 mmol) in dichloromethane (1 mL) dropwise. The reaction was allowed to come to room temperature then stirred for 16 hours. The mixture was concentrated, then dissolved in 2 mL DMSO and purified by reverse phase HPLC to provide N-(3- carbamoyl-4-fluoro-phenyl)-2-fluoro-6-[2-methyl-4-(trifluoromethoxy)phenoxy]-3- (trifluoromethyl)benzamide (551 mg, 48%). ESI-MS m/z calc. 534.0826, found 535.1 (M+l)+; retention time (Method B): 1.9 minutes (3 minute run). NMR (400 MHz, DMSO-d6) delta 11.06 (s, 1H), 7.98 (dd, J = 6.4, 2.8 Hz, 1H), 7.82 (t, J = 8.7 Hz, 1H), 7.76 (ddd, J = 9.2, 4.5, 3.0 Hz, 2H), 7.70 (s, 1H), 7.43 (d, J = 2.8 Hz, 1H), 7.36 - 7.24 (m, 3H), 6.70 (d, J = 8.9 Hz, 1H), 2.18 (s, 3H) ppm.
  • 19
  • [ 518057-72-2 ]
  • 2-fluoro-4-methoxy-6-[4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzoic acid [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-2-fluoro-4-methoxy-6-[4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
38% With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; In N,N-dimethyl-formamide; at 20℃; To a flask charged with 2-fluoro-4-methoxy-6-[4-(trifluoromethoxy)phenoxy]-3- (trifluoromethyl)benzoic acid (205 mg, 0.495 mmol), 5-amino-2-fluoro-benzamide (81 mg, 0.53 mmol) and HATU (230 mg, 0.605 mmol) in DMF (2.5 inL) was added DIEA (300 mu, 1.72 mmol) and the reaction mixture was stirred overnight at room temperature. The reaction mixture was diluted with water and the aqueous layer was extracted with ethyl acetate. The organic layer was washed with brine, dried over MgSO/t, filtered and concentrated in vacuo. The crude material was purified by HPLC (1-99% acetonitrile/5 mM HC1) to provide N-(3-carbamoyl-4-fluoro-phenyl)-2-fluoro-4-methoxy-6-[4- (trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzamide (110 mg, 38%). ESI-MS m/z calc. 550.07, found 551.3 (M+l)+; retention time (Method B): 1.54 minutes (3 minute run). 'H NMR (400 MHz, DMSO-d6) delta 10.82 (s, 1H), 7.90 (dd, J = 6.4, 2.8 Hz, 1H), 7.76 - 7.62 (m, 3H), 7.44 - 7.35 (m, 2H), 7.30 - 7.19 (m, 3H), 6.69 (s, 1H), 3.83 (s, 3H) ppm.
  • 20
  • [ 518057-72-2 ]
  • 4-benzyloxy-2-fluoro-6-[4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzoic acid [ No CAS ]
  • 4-benzyloxy-N-(3-carbamoyl-4-fluorophenyl)-2-fluoro-6-[4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
87% With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; In N,N-dimethyl-formamide; at 20℃; for 20h; To a flask charged with 4-benzyloxy-2-fluoro-6-[4-(trifluoromethoxy)phenoxy]-3- (trifluoromethyl)benzoic acid (90 mg, 0.18 mmol), 5-amino-2-fluoro-benzamide (34 mg, 0.22 mmol) and HATU (86 mg, 0.23 mmol) in DMF (1 mL) was added DIEA (0.100 mL, 0.574 mmol) and the reaction mixture was stirred at room temperature for 20 hours. The reaction mixture was diluted with water and the resulting precipitate was filtered and washed with water. The residue was dissolved indichloromethane, dried over MgSO/t, filtered and concentrated in vacuo. Silica gel chromatography (0- 50% ethyl acetate/hexanes) provided 4-benzyloxy-N-(3-carbamoyl-4-fluoro-phenyl)-2-fluoro-6-[4- (trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzamide (100 mg, 87%). ESI-MS m/z calc. 626.10, found 627.3 (M+l)+; retention time (Method B): 2.01 minutes (3 minute run). 'H NMR (400 MHz, DMSO-d6) delta 10.82 (s, 1H), 7.90 (dd, J = 6.4, 2.8 Hz, 1H), 7.73 - 7.63 (m, 3H), 7.44 - 7.32 (m, 5H), 7.29 - 7.15 (m, 5H), 6.68 (s, 1H), 5.25 (s, 2H) ppm.
  • 21
  • [ 518057-72-2 ]
  • 5-[2-methoxy-4-(trifluoromethoxy)phenoxy]-2-(trifluoromethyl)pyridine-4-carboxylic acid [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-5-[2-methoxy-4-(trifluoromethoxy)phenoxy]-2-(trifluoromethyl)pyridine-4-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
10% 5 -[2-Methoxy-4-(trifluoromethoxy)phenoxy] -2-(trifluoromethyl)pyridine-4-carboxylic acid (150 mg, 0.378 mmol) and HATU (144 mg, 0.379 mmol) were combined in DMF (2 mL) and DIEA (0.165 mL, 0.947 mmol) and stirred for 10 minutes, followed by the addition of 5-amino-2-fluoro- benzamide (116 mg, 0.753 mmol). The reaction was stirred for 1 hour, then diluted with dichloromethane and washed with water and brine. The organic layer was dried over Na2S04, filtered and concentrated in vacuo. HPLC purification (10-99% acetonitrile/5 mM HC1) provided N-(3-carbamoyl-4-fluoro-phenyl)- 5 -[2-methoxy-4-(trifluoromethoxy)phenoxy] -2-(trifluoromethyl)pyridine-4-carboxamide (21.8 mg, 10%). ESI-MS m/z calc. 533.08, found 534.1 (M+l)+; retention time (Method B): 1.84 minutes (3 minute run). i NMR ^OO MHz, DMSO-d6) delta 10.83 (s, 1H), 8.28 (s, 1H), 8.20 (s, 1H), 7.99 - 7.95 (m, 1H), 7.78 (ddd, J = 9.0, 4.4, 2.8 Hz, lH), 7.70 (br s, 2H), 7.38 (d, J = 8.8 Hz, 1H), 7.29 (dd, J = 10.1, 9.0 Hz, 1H), 7.23 (d, J = 2.7 Hz, 1H), 7.02 (ddd, J = 8.8, 2.7, 1.2 Hz, 1H), 3.78 (s, 3H) ppm.
  • 22
  • [ 518057-72-2 ]
  • 2,3,4-trifluoro-6-[2-methoxy-4-(trifluoromethoxy)phenoxy]benzoic acid [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-2,3,4-trifluoro-6-[2-methoxy-4-(trifluoromethoxy)phenoxy]benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
10% 2,3,4-trifluoro-6-[2-methoxy-4-(trifluoromethoxy)phenoxy]benzoic acid (140 mg, 0.37 mmol) and HATU (145 mg, 0.38 mmol) were combined in N,N-dimethylformamide (1.5 mL) and DIEA (128 mu, 0.73 mmol) and stirred for 5 minutes. 5-Amino-2-fluoro-benzamide (57.1 mg, 0.3704 mmol) was added in one portion and the reaction was stirred at RT for 2.5 hours. The reaction was diluted with ethyl acetate and washed with saturated aqueous sodium bicarbonate and brine. The organic layer was dried over sodium sulfate, filtered, and concentrated. The crude material was purified by silica gel chromatography (ethyl acetate/hexane gradient) and re-purified using a reverse phase HPLC to yield N- (3-carbamoyl-4-fluoro-phenyl)-2,3,4 rifluoro-6-[2-methoxy-4-(trifluoromethoxy)phenoxy]benzamide (18.1 mg, 10%) as a white solid. ESI-MS m/z calc. 518.07, found 519.1 (M+l)+; retention time (Method B): 1.73 minutes (3 minute run). NMR (400 MHz, DMSO-d6) delta 10.92 (s, 1H), 7.96 (dd, J = 6.4, 2.8 Hz, 1H), 7.80 - 7.60 (m, 3H), 7.28 (dd, J = 10.1, 8.9 Hz, 1H), 7.24 (d, J = 8.8 Hz, 1H), 7.18 (d, J = 2.8 Hz, 1H), 7.06 - 6.90 (m, 1H), 6.90 - 6.76 (m, 1H), 3.78 (s, 3H) ppm.
  • 23
  • [ 518057-72-2 ]
  • 2,3-difluoro-6-[2-methoxy-4-(trifluoromethoxy)phenoxy]benzoyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-2,3-difluoro-6-[2-methoxy-4-(trifluoromethoxy)phenoxy]benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
11% With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 20℃; for 2h; To a solution of 5-amino-2-fluoro-benzamide (60 mg, 0.39 mmol) and DIEA (0.204 mL, 1.18 mmol) in dichloromethane (1 mL) at 0 C was added a solution of 2,3-difluoro-6-[2-methoxy-4- (trifluoromethoxy)phenoxy]benzoyl chloride (150 mg, 0.392 mmol) in dichloromethane (1 mL) dropwise. The reaction was allowed to warm to room temperature and stirred for 2 hours. The solvent was evaporated under a stream of N2 gas. The crude product was dissolved in DMSO, filtered and purified by HPLC (1-99% acetonitrile/5 mM HC1) to provide N-(3-carbamoyl-4-fluoro-phenyl)-2,3-difluoro-6-[2- methoxy-4-(trifluoromethoxy)phenoxy]benzamide (22.3 mg, 11%). ESI-MS m/z calc. 500.08, found 501.1 (M+l)+; retention time (Method C): 2.22 minutes (5 minute run). NMR (400 MHz, DMSO-d6) delta 10.94 (s, 1H), 7.98 (dd, J = 6.4, 2.8 Hz, 1H), 7.82 - 7.64 (m, 3H), 7.54 - 7.41 (m, 1H), 7.28 (dd, J = 10.0, 8.9 Hz, 1H), 7.23 - 7.17 (m, 2H), 7.09 - 6.81 (m, 1H), 6.81 - 6.43 (m, 1H), 3.77 (s, 3H) ppm.
  • 24
  • [ 518057-72-2 ]
  • 6-cyclopropyl-4-[2-(trideuteriomethoxy)-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxylic acid [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-6-cyclopropyl-4-[2-(trideuteriomethoxy)-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
52% A mixture of 6-cyclopropyl-4-[2-(trideuteriomethoxy)-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxylic acid (100 mg, 0.269 mmol), HATU (103 mg, 0.270 mmol) and 4-methylmorpholine (0.06 mL, 0.55 mmol) in DMF (0.5 mL) was stirred at room temperature for 5 minutes and then 5-amino-2-fluoro-benzamide (41 mg, 0.27 mmol) was added in one portion. The reaction was stirred for 30 minutes, then diluted to a total volume of 1 mL with DMF, filtered and purified by HPLC (30-99% acetonitrile/5 mM HCl) to provide N-(3 -carbamoyl -4-fluoro-phenyl)-6- cyclopropyl-4- [2-(trideuteriomethoxy)-4-(trifluoromethoxy)phenoxy]pyridine-3 -carboxamide (72 mg, 52%). ESI-MS m/z calc. 508.15, found 509.2 (M+l)+; retention time (Method B): 1.35 minutes (3 minute run). NMR (400 MHz, DMSO-d6) delta 10.61 (s, 1H), 8.67 (s, 1H), 8.00 (dd, J = 6.4, 2.8 Hz, 1H), 7.83 (ddd, J = 8.9, 4.4, 2.8 Hz, 1H), 7.70 (d, J = 10.7 Hz, 2H), 7.49 (d, J = 8.8 Hz, 1H), 7.32 - 7.24 (m, 2H), 7.08 (ddq, J = 8.9, 2.4, 1.2 Hz, 1H), 6.69 (s, 1H), 2.18 (dt, J = 7.7, 4.6 Hz, 1H), 1.09 - 0.97 (m, 4H) ppm.
  • 25
  • [ 518057-72-2 ]
  • 2-cyclopropyl-3-fluoro-5-[2-methoxy-4-(trifluoromethoxy)phenoxy]pyridine-4-carbonyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-2-cyclopropyl-3-fluoro-5-[2-methoxy-4-(trifluoromethoxy)phenoxy]pyridine-4-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
34% With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 20℃; for 18h; To a vial charged with 5-amino-2-fluoro-benzamide (23 mg, 0.15 mmol) and DIEA (38 mg, 0.052 mL, 0.30 mmol) in THF (0.2 mL) at 0 C was added a solution of 2-cyclopropyl-3-fluoro-5-[2- methoxy-4-(trifluoromethoxy)phenoxy]pyridine-4-carbonyl chloride (60 mg, 0.15 mmol) indichloromethane dropwise. The reaction mixture was gradually warmed to room temperature and stirred for 18 hours. The reaction mixture was quenched with water and the aqueous layer was extracted with dichloromethane. The organic layer was dried over MgSO/i, filtered and concentrated in vacuo. The crude material was dissolved in DMF/methanol, filtered (syringe filter) and purified by HPLC (10-99% acetonitrile/5 mM HC1) to provide N-(3-carbamoyl-4-fluoro-phenyl)-2-cyclopropyl-3-fluoro-5-[2- methoxy-4-(trifluoromethoxy)phenoxy]pyridine-4-carboxamide (27 mg, 34%). ESI-MS m/z calc. 523.11, found 524.2 (M+l)+; retention time (Method B): 1.69 minutes (3 minute run). 'H NMR (400 MHz, DMSO-d6) delta 10.93 (s, 1H), 8.54 (s, 1H), 7.79 (dd, J = 6.4, 2.8 Hz, 1H), 7.69 (s, 2H), 7.55 (ddd, J = 9.0, 4.4, 2.8 Hz, 1H), 7.23 (dd, J = 10.1, 8.9 Hz, 1H), 7.03 (d, J = 2.7 Hz, 1H), 6.82 (ddd, J = 8.9, 2.5, 1.2 Hz, 1H), 6.75 (d, J = 8.9 Hz, 1H), 3.71 (s, 3H), 2.09 (ddd, J = 13.1, 8.0, 4.9 Hz, 1H), 0.93 (qd, J = 6.2, 2.4 Hz, 2H), 0.88 - 0.82 (m, 2H) ppm.
  • 26
  • [ 518057-72-2 ]
  • 4-[3-chloro-4-(trifluoromethoxy)phenoxy]-6-cyclopropylpyridine-3-carbonyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-4-[3-chloro-4-(trifluoromethoxy)phenoxy]-6-cyclopropylpyridine-3-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
21% In tetrahydrofuran; dichloromethane; at 0 - 20℃; for 16h;Inert atmosphere; To a solution of 5-amino-2-fluoro-benzamide (48 mg, 0.31 mmol) and DIEA (0.137 mL, 0.787 mmol) in anhydrous THF (1.5 mL) at 0 C under a N2 atmosphere was added a solution of 4-[3- chloro-4-(trifluoromethoxy)phenoxy]-6-cyclopropyl-pyridine-3-carbonyl chloride (103 mg, 0.262 mmol) in dichloromethane (1.3 mL) dropwise. The reaction mixture was allowed to slowly warm to room temperature and continued to stir at room temperature for 16 hours. The reaction mixture was partitioned between dichloromethane and water. The layers were separated and the aqueous layer was extracted once more with dichloromethane. The combined organics were dried over NaaSO/t, filtered and concentrated in vacuo. Silica gel chromatography (0-60% ethyl acetate/dichloromethane) provided N-(3-carbamoyl-4- fluoro-phenyl)-4-[3-chloro-4-(trifluoromethoxy)phenoxy]-6-cyclopropyl-pyridine-3-carboxamide (28.4 mg, 21%). ESI-MS m/z calc. 509.07, found 510.2 (M+l)+; retention time (Method B): 1.46 minutes (3 minute run).
  • 27
  • [ 518057-72-2 ]
  • 6-cyclopropyl-4-[3-fluoro-4-(trifluoromethoxy)phenoxy]pyridine-3-carbonyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-6-cyclopropyl-4-[3-fluoro-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
17% With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 0℃; for 1h; To a mixture of 5-amino-2-fluoro-benzamide (27 mg, 0.18 mmol) and DIEA (62 mg, 0.48 mmol) in dichloromethane (0.6 inL) at 0 C was added 6-cyclopropyl-4-[3-fluoro-4- (trifluoromethoxy)phenoxy]pyridine-3-carbonyl chloride (60 mg, 0.16 mmol) as a solution indichloromethane (0.6 mL). The reaction mixture was stirred for 1 hour, then quenched with methanol and purified by HPLC (1-99% acetonitrile/5 mM HC1) to provide N-(3-carbamoyl-4-fluoro-phenyl)-6- cyclopropyl-4-[3-fluoro-4-(trifluoromethoxy)phenoxy]pyridine-3-carboxamide (15.8 mg, 17%). ESI-MS m/z calc. 493.10, found 494.2 (M+l)+; retention time (Method B): 1.38 minutes (3 minute run). 'H NMR (400 MHz, DMSO-d6) delta 10.57 (s, 1H), 8.65 (s, 1H), 7.97 (dd, J = 6.5, 2.8 Hz, 1H), 7.78 (ddd, J = 9.0, 4.4, 2.7 Hz, 1H), 7.73 - 7.63 (m, 3H), 7.54 (dd, J = 11.1, 2.8 Hz, 1H), 7.31 - 7.17 (m, 2H), 6.99 (s, 1H), 2.25 - 2.12 (m, 1H), 1.07 - 0.98 (m, 4H) ppm.
  • 28
  • [ 518057-72-2 ]
  • methyl 4-[3-fluoro-4-(trifluoromethoxy)phenoxy]-6-isopropylpyridine-3-carboxylate [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-4-[3-fluoro-4-(trifluoromethoxy)phenoxy]-6-isopropylpyridine-3-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
11% With 1,4-diaza-bicyclo[2.2.2]octane trimethylalumane; In tetrahydrofuran; at 120℃; for 1h;Microwave irradiation; A microwave vial was charged with methyl 4-[3-fluoro-4-(trifluoromethoxy)phenoxy]-6- isopropyl-pyridine-3-carboxylate (40 mg, 0.11 mmol), l,4-diazabicyclo[2.2.2]octane trimethylalumane (43 mg, 0.17 mmol) and 5-amino-2-fluoro-benzamide (17 mg, 0.11 mmol). The reaction vial was evacuated and flushed with N2. THF (800 mu) was added and the reaction again was evacuated and flushed with N2. The reaction mixture was subjected to microwave irradiation at 120 C for 60 minutes, then was cooled to room temperature and carefully quenched with 1 M HC1. The aqueous layer was extracted with dichloromethane and the organic layer was dried over MgSO/t, filtered and concentrated in vacuo. Purification by HPLC (1-99% acetonitrile/5 mM HC1) provided N-(3 -carbamoyl -4-fluoro- phenyl)-4-[3-fluoro-4-(trifluoromethoxy)phenoxy]-6-isopropyl-pyridine-3-carboxamide (6.1 mg, 11%). ESI-MS m/z calc. 495.12, found 496.3 (M+l)+; retention time (Method B): 1.4 minutes (3 minute run). 'H NMR (400 MHz, DMSO-d6) delta 10.69 (d, J = 5.2 Hz, 1H), 8.79 (d, J = 3.1 Hz, 1H), 7.98 (dd, J = 6.4, 2.8 Hz, 1H), 7.77 (ddd, J = 7.7, 4.4, 2.9 Hz, 1H), 7.70 (t, J = 8.0 Hz, 3H), 7.54 (dd, J = 11.0, 2.8 Hz, 1H), 7.33 - 7.13 (m, 2H), 7.00 (d, J = 3.9 Hz, 1H), 3.10 (p, J = 7.2 Hz, 1H), 1.22 (dd, J = 6.9, 1.1 Hz, 6H) ppm.
  • 29
  • [ 518057-72-2 ]
  • 5-benzyloxy-2-fluoro-6-[4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzoic acid [ No CAS ]
  • 5-benzyloxy-N-(3-carbamoyl-4-fluorophenyl)-2-fluoro-6-[4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
52% With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; In N,N-dimethyl-formamide; at 20℃; for 3h; A mixture of 5-benzyloxy-2-fluoro-6-[4-(trifluoromethoxy)phenoxy]-3- (trifluoromethyl)benzoic acid (40 mg, 0.082 mmol), 5-amino-2-fluoro-benzamide (14 mg, 0.09 mmol), HATU (38 mg, 0.10 mmol) and DIPEA (50 mu, 0.2871 mmol) in DMF (700 mu was stirred at room temperature for 3 hours. The reaction mixture was quenched with water and the precipitated solid was filtered and washed with water. The solid was taken up in DCM, dried over MgSO/i, filtered and concentrated in vacuo. Product was purified by silica gel chromatography (0-50% ethyl acetate/hexanes) to afford 5-benzyloxy-N-(3-carbamoyl-4-fluoro-phenyl)-2-fluoro-6-[4-(trifluoromethoxy)phenoxy]-3- (trifluoromethyl)benzamide (28 mg, 52%). ESI-MS m/z calc. 626.11, found 627.2 (M+l)+; retention time (Method B): 2.09 minutes (3 minutes run). NMR (400 MHz, DMSO-d6) delta 11.01 (s, 1H), 7.89 (dd, J = 6.4, 2.8 Hz, 1H), 7.74 (d, J = 6.7 Hz, 1H), 7.71 - 7.63 (m, 3H), 7.36 - 7.18 (m, 6H), 7.09 - 7.04 (m, 2H), 6.97 - 6.92 (m, 2H), 5.17 (s, 2H) ppm.
  • 30
  • [ 518057-72-2 ]
  • 6-[3-chloro-4-(trifluoromethoxy)phenoxy]-2-fluoro-3-(trifluoromethyl)benzoyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-6-[3-chloro-4-(trifluoromethoxy)phenoxy]-2-fluoro-3-(trifluoromethyl)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
26% In dichloromethane; at 0 - 20℃; for 1h; To a solution of 5-amino-2-fluoro-benzamide (53 mg, 0.34 mmol) and diisopropylethylamine (179 mu, 1.03 mmol) in dichloromethane (1 mL) at 0 C was added a slurry 6-[3- chloro-4-(trifluoromethoxy)phenoxy]-2-fluoro-3-(trifluoromethyl)benzoyl chloride (150 mg, 0.34 mmol) in dichloromethane (1 mL) slowly and the mixture was stirred at room temperature for 1 hour. The solvent was evaporated by blowing down with nitrogen. The crude product was dissolved in DMSO, filtered and purified using a reverse phase HPLC to yield N-(3-carbamoyl-4-fluoro-phenyl)-6-[3-chloro- 4-(trifluoromethoxy)phenoxy]-2-fluoro-3-(trifluoromethyl)benzamide (49.5 mg, 26%). ESI-MS m/z calc. 554.03, found 555.0 (M+l)+; retention time (Method C): 2.58 minutes (5 minute run). l NMR (400 MHz, DMSO-d6) delta 11.02 (s, 1H), 7.94 (dd, J = 6.4, 2.8 Hz, 1H), 7.90 (t, J = 8.6 Hz, 1H), 7.76 - 7.69 (m, 3H), 7.69 - 7.64 (m, 1H), 7.63 (d, J = 2.9 Hz, 1H), 7.34 - 7.25 (m, 2H), 7.06 (d, J = 8.8 Hz, 1H) ppm.
  • 31
  • [ 518057-72-2 ]
  • 4,5-dichloro-2-[(2-methoxy-3-pyridyl)oxy]benzoyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-4,5-dichloro-2-[(2-methoxy-3-pyridyl)oxy]benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
45% With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 0 - 20℃; for 0.166667h; To a solution of 5-amino-2-fluoro-benzamide (23 mg, 0.15 mmol) and N-ethyl-N-isopropyl- propan-2-amine (78 mu, 0.45 mmol) in DCM (500 mu) at 0 C was added a solution of 4,5-dichloro-2-[(2- methoxy-3-pyridyl)oxy]benzoyl chloride (50 mg, 0.15 mmol) in DCM (500 mu) dropwise. The reaction mixture was warmed to room temperature and stirred for 10 minutes, resulting in a thick slurry. The slurry was filtered and the solid washed with minimal acetonitrile. The resulting solid was re-suspended in water to obtain a white solid which was filtered and air dried. The solid was rinsed with hexanes and dried under vacuum to provide N-(3-carbamoyl-4-fluoro-phenyl)-4,5-dichloro-2-[(2-methoxy-3- pyridyl)oxy]benzamide (30 mg, 45%) as a white solid. ESI-MS m/z calc. 449.03, found 450.1 (M+l)+; Retention time (Method B): 1.59 minutes (3 minutes run). NMR (400 MHz, DMSO-d6) delta 10.57 (s, 1H), 8.02 (dd, J = 4.9, 1.6 Hz, 1H), 7.97 - 7.92 (m, 2H), 7.75 (ddd, J = 9.0, 4.4, 2.8 Hz, 1H), 7.72 - 7.62 (m, 2H), 7.52 (dd, J = 7.8, 1.6 Hz, 1H), 7.26 (dd, J = 10.2, 8.9 Hz, 1H), 7.15 (s, 1H), 7.04 (dd, J = 7.7, 4.9 Hz, 1H), 3.83 (s, 3H) ppm.
  • 32
  • [ 518057-72-2 ]
  • 6-tert-butyl-4-chloropyridine-3-carboxylic acid [ No CAS ]
  • 6-tert-butyl-N-(3-carbamoyl-4-fluorophenyl)-4-chloropyridine-3-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
100% With 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide; triethylamine; In Isopropyl acetate; at 20℃; for 4h; 6-tert-Butyl-4-chloro-pyridine-3-carboxylic acid (207 mg, 0.97 mmol), 5-amino-2-fluoro- benzamide (180 mg, 1.17 mmol), triethylamine (900 mu, 6.46 mmol) and 2,4,6-tripropyl-l, 3,5,2,4,6- trioxatriphosphinane 2,4,6-trioxide (2 mL of 50 %w/v, 3.14 mmol) in isopropyl acetate (5 mL) was stirred at room temperature for 4 hours. The mixture was concentrated in vacuo and residue was partitioned between DCM and saturated aqueous sodium bicarbonate. Layers were separated and the organics dried over magnesium sulfate, filtered and concentrated in vacuo to afford 6-tert-butyl-N-(3-carbamoyl-4- fluoro-phenyl)-4-chloro-pyridine-3-carboxamide (340 mg, 100%) as a colourless oil. ESI-MS m/z calc. 349.10, found 350.2 (M+l)+;348.2 (M-l)-; Retention time (Method F): 0.8 minutes (1.5 minutes run).
  • 33
  • [ 518057-72-2 ]
  • 2-fluoro-6-[4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzoyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-2-fluoro-6-[4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
57% With N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; dichloromethane; at 0 - 20℃; for 1h;Inert atmosphere; A vial charged with 5-amino-2-fluoro-benzamide (218 mg, 1.41 mmol) and DIEA (750 mu, 4.31 mmol) in THF (6 mL) was cooled at 0 C under an atmosphere of N2. A solution of 2-fluoro-6-[4- (trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzoyl chloride (570 mg, 1.42 mmol) in THF (4 mL) and dichloromethane (3 mL) was added. The reaction mixture was gradually warmed to room temperature and stirred for 1 hour. The mixture was quenched with water, and the aqueous layer was extracted with dichloromethane. The combined organic layers were washed with IN HCl (4x), dried over MgSO/t, filtered and concentrated. The crude material was purified via silica gel chromatography (ethyl acetate/hexane gradient) to obtain N-(3-carbamoyl-4-fluoro-phenyl)-2-fluoro-6-[4- (trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzamide (420 mg, 57%). ESI-MS m/z calc. 520.07, found 521.1 (M+l)+; retention time (Method B): 1.82 minutes (3 minute run). 'H NMR (400 MHz, DMSO-d6) delta 11.05 (s, 1H), 7.96 (dd, J = 6.3, 2.8 Hz, 1H), 7.87 (t, J = 8.6 Hz, 1H), 7.75 (ddd, J = 9.0, 4.5, 2.9 Hz, 2H), 7.69 (s, 1H), 7.49 (dq, J = 7.8, 0.9 Hz, 2H), 7.37 - 7.25 (m, 3H), 6.90 (d, J = 8.8 Hz, 1H) ppm.
  • 34
  • [ 518057-72-2 ]
  • 2-fluoro-6-[3-fluoro-4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzoyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-2-fluoro-6-[3-fluoro-4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
60% With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 0 - 20℃; To 5-amino-2-fluoro-benzamide (55 mg, 0.36 mmol) and diisopropylethylamine (186 mu, 1.07 mmol) in dichloromethane (1.5 inL) cooled at 0C was added dropwise a solution of 2-fluoro-6-[3- fluoro-4-(trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzoyl chloride (150 mg, 0.3566 mmol) in dichloromethane (1.5 mL). The reaction was stirred at room temperature overnight. The mixture as diluted with ethyl acetate (30mL) washed with water, saturated aqueous sodium bicarbonate and brine, dried over sodium sulfate and concentrated to dryness. Purification by silica gel chromatography (ethyl acetate/hexane gradient) yielded N-(3-carbamoyl-4-fluoro-phenyl)-2-fluoro-6-[3-fluoro-4- (trifluoromethoxy)phenoxy]-3-(trifluoromethyl)benzamide (117.5 mg, 60%). ESI-MS m/z calc. 538.06, found 539.1 (M+l)+; retention time (Method B): 1.82 minutes (3 minute run). 'H NMR (400 MHz, DMSO-d6) delta 11.03 (s, 1H), 8.03 - 7.84 (m, 2H), 7.82 - 7.61 (m, 4H), 7.49 (dd, J = 11.0, 2.9 Hz, 1H), 7.34 - 7.22 (m, 1H), 7.19 - 7.11 (m, 1H), 7.07 (d, J = 8.8 Hz, 1H) ppm.
  • 35
  • [ 518057-72-2 ]
  • 2-[2-methoxy-4-(trifluoromethoxy)phenoxy]-5-(1,1,2,2,2-pentafluoroethyl)benzoyl chloride [ No CAS ]
  • N-(3-carbamoyl-4-fluorophenyl)-2-[2-methoxy-4-(trifluoromethoxy)phenoxy]-5-(1,1,2,2,2-pentafluoroethyl)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
23% With N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; at 0 - 20℃; for 4h; A solution of 5-amino-2-fluoro-benzamide (30 mg, 0.19 mmol) and diisopropylethylamine (100 mu, 0.5766 mmol) in tetrahydrofuran (1 mL) at 0 C was added to a slurry of 2-[2-methoxy-4- (trifluoromethoxy)phenoxy]-5-(l, l,2,2,2-pentafluoroethyl)benzoyl chloride (89 mg, 0.19 mmol) in tetrahydrofuran (1 mL) slowly at 0 C and the reaction was stirred at room temperature for 4 hours. The solvent was evaporated by blowing down with nitrogen. The crude product was dissolved in DMSO, filtered and purified by reverse phase HPLC to yield N-(3-carbamoyl-4-fluoro-phenyl)-2-[2-methoxy-4- (trifluoromethoxy)phenoxy]-5-(l, l,2,2,2-pentafluoroethyl)benzamide (25.7 mg, 23%). ESI-MS m/z calc. 582.08, found 583.0 (M+l)+; retention time (Method B): 2.04 minutes (3 minute run). NMR (400 MHz, DMSO-d6) delta 10.62 (s, 1H), 8.00 (dd, J = 6.5, 2.8 Hz, 1H), 7.91 (d, J = 2.4 Hz, 1H), 7.83 (ddd, J = 9.0, 4.4, 2.8 Hz, 1H), 7.78 - 7.62 (m, 3H), 7.44 (d, J = 8.8 Hz, 1H), 7.32 - 7.24 (m, 2H), 7.07 (ddd, J = 8.8, 2.8, 1.3 Hz, 1H), 6.87 (d, J = 8.8 Hz, 1H), 3.78 (s, 3H) ppm.
 

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