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

HRID 239267
Notes
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Reaction equation

HRID 239267 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][C:31]([F:34])=[CH:30][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[CH:30]=[C:31]([F:34])[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
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 27369112,5-Difluorobenzenesulfonyl chlorideHCID 579897213-(5-(2-Chloropyrimidin-4-yl)-2-morpholinothiazol-4-yl)-2-fluoroaniline2×

Product 1

HCID 57989631N-{3-[5-(2-Chloro-4-pyrimidinyl)-2-(4-morpholinyl)-1,3-thiazol-4-yl]-2-fluorophenyl}-2,5-difluorobenzenesulfonamideYield 44.7%

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) (Intermediate 27) in pyridine (400 mL), 2,5-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 (22.7 g, 44.6% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 10.75-10.83 (br, 1H), 8.32 (d, J=5.3 Hz, 1H), 7.28-7.60 (m, 6H), 6.48 (d, J=5.3 Hz, 1H), 3.65-3.80 (m, 4H), 3.50-3.65 (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-aa0d7f2ca4b74413840bbf1c29655123
Source dataset
uspto-grants-2014_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08642759B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes