Triethylamine → N-(4-(3-Bromopyridin-4-yloxy)-2,5-difluorophenyl)-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide

HRID 1046026Notes

Reaction equation

HRID 1046026 reaction equation
[Br:1][C:2]1[CH:3]=[N:4][CH:5]=[CH:6][C:7]=1[O:8][C:9]1[C:14]([F:15])=[CH:13][C:12]([NH2:16])=[C:11]([F:17])[CH:10]=1.C(N(CC)CC)C.[F:25][C:26]1[CH:31]=[CH:30][C:29]([N:32]2[CH:37]=[CH:36][CH:35]=[C:34]([C:38](Cl)=[O:39])[C:33]2=[O:41])=[CH:28][CH:27]=1>C1COCC1>[Br:1][C:2]1[CH:3]=[N:4][CH:5]=[CH:6][C:7]=1[O:8][C:9]1[C:14]([F:15])=[CH:13][C:12]([NH:16][C:38]([C:34]2[C:33](=[O:41])[N:32]([C:29]3[CH:28]=[CH:27][C:26]([F:25])=[CH:31][CH:30]=3)[CH:37]=[CH:36][CH:35]=2)=[O:39])=[C:11]([F:17])[CH:10]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 596809561-(4-Fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carbonyl chlorideHCID 673992554-(3-Bromopyridin-4-yloxy)-2,5-difluorobenzenamine

Product 1

HCID 68009215N-(4-(3-Bromopyridin-4-yloxy)-2,5-difluorophenyl)-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamideYield 71.2%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

A solution of Example A2 (0.100 g, 0.332 mmol) in THF (1 mL) was treated with triethylamine (0.069 ml, 0.498 mmol) and a suspension of 1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carbonyl chloride (0.125 g, 0.498 mmol) in THF (2 mL). The mixture was blanketed with argon and stirred overnight at room temperature. The solids were removed via filtration, rinsed with THF and the filtrate was concentrated to dryness. The crude material was purified by silica gel chromatography (10-100% EtOAc/Hex) to afford N-(4-(3-bromopyridin-4-yloxy)-2,5-difluorophenyl)-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (122 mg, 71% yield) as a pale yellow solid. 1H NMR (400 MHz, DMSO-d6): δ 12.45 (s, 1H); 8.74 (s, 1H); 8.58 (m, 2H); 8.38 (d, J=5.6 Hz, 1H); 8.15 (dd, J=6.6, 2.2 Hz, 1H); 7.67 (dd, J=11.0, 7.3 Hz, 1H); 7.60 (dd, J=8.8, 4.9 Hz, 2H); 7.41 (t, J=8.7 Hz, 2H); 6.89 (d, J=5.6 Hz, 1H); 6.74 (t, J=7.0 Hz, 1H); MS (ESI) m/z: 516.0, 518.0 (M+H+).

Workup

  1. customThe solids were removed via filtration
  2. washrinsed with THF
  3. concentrationthe filtrate was concentrated to dryness
  4. customThe crude material was purified by silica gel chromatography (10-100% EtOAc/Hex)

Sources & evidence

ORD record
ord-d5610eb7ca5f4b17b83fcd4f76568bd3
Source dataset
uspto-grants-2013_10
Patent number
US08569319B2

Reaction notes

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