2,6-Difluorobenzenesulfonyl chloride → N-{3-[5-(2-Chloro-4-pyrimidinyl)-2-(4-morpholinyl)-1,3-thiazol-4-yl]-2-fluorophenyl}-2,6-difluorobenzenesulfonamide

HRID 239266Notes

Reaction equation

HRID 239266 reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([C:8]2[S:12][C:11]([N:13]3[CH2:18][CH2:17][O:16][CH2:15][CH2:14]3)=[N:10][C:9]=2[C:19]2[C:20]([F:26])=[C:21]([CH:23]=[CH:24][CH:25]=2)[NH2:22])[CH:5]=[CH:4][N:3]=1.[F:27][C:28]1[CH:33]=[CH:32][CH:31]=[C:30]([F:34])[C:29]=1[S:35](Cl)(=[O:37])=[O:36]>N1C=CC=CC=1>[Cl:1][C:2]1[N:7]=[C:6]([C:8]2[S:12][C:11]([N:13]3[CH2:14][CH2:15][O:16][CH2:17][CH2:18]3)=[N:10][C:9]=2[C:19]2[C:20]([F:26])=[C:21]([NH:22][S:35]([C:29]3[C:30]([F:34])=[CH:31][CH:32]=[CH:33][C:28]=3[F:27])(=[O:37])=[O:36])[CH:23]=[CH:24][CH:25]=2)[CH:5]=[CH:4][N:3]=1

Participants

4

Reactant 2

HCID 27342712,6-Difluorobenzenesulfonyl chlorideHCID 579897213-(5-(2-Chloropyrimidin-4-yl)-2-morpholinothiazol-4-yl)-2-fluoroaniline

Product 1

HCID 57989866N-{3-[5-(2-Chloro-4-pyrimidinyl)-2-(4-morpholinyl)-1,3-thiazol-4-yl]-2-fluorophenyl}-2,6-difluorobenzenesulfonamideYield 36.4%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

To a solution of 3-(5-(2-chloropyrimidin-4-yl)-2-morpholinothiazol-4-yl)-2-fluoroaniline (35 g, 89.5 mmol) in pyridine (400 mL), 2,6-difluorobenzene-1-sulfonyl chloride (20.9 g, 98.5 mmol) was added dropwise. The reaction was stirred at rt for 2 h. Then the reaction was washed with water (400 mL), and extracted with DCM (2×400 mL). The organic layer was washed with water, brine, dried over anhydrous NaSO4, filtrated and concentrated under reduced pressure to give the crude product, which was purified by column chromatography on silica gel (petroleum ether:DCM 1:2) to afford the title compound (18.5 g, 36.4% yield). 1H NMR (400 MHz, CDCl3) δ ppm 8.03 (d, J=5.3 Hz, 1H), 7.65-7.70 (m, 1H), 7.40-7.50 (m, 1H), 7.25-7.30 (br, 1H), 7.18-7.23 (m, 2H), 6.88-6.98 (m, 2H), 6.38 (d, J=5.3 Hz, 1H), 3.72-3.80 (m, 4H), 3.50-3.58 (m, 4H); m/z (ES+): 568 [M+H]+.

Workup

  1. washThen the reaction was washed with water (400 mL)
  2. extractionextracted with DCM (2×400 mL)
  3. washThe organic layer was washed with water, brine
  4. dry with materialdried over anhydrous NaSO4
  5. filtrationfiltrated
  6. concentrationconcentrated under reduced pressure
  7. customto give the crude product, which
  8. customwas purified by column chromatography on silica gel (petroleum ether:DCM 1:2)

Sources & evidence

ORD record
ord-3a84d8034a3944d4958194c38019d177
Source dataset
uspto-grants-2014_02
Patent number
US08642759B2

Reaction notes

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