Water → N-{3-[5-(2-Chloro-4-pyrimidinyl)-2-(tetrahydro-2H-pyran-4-yl)-1,3-thiazol-4-yl]-2-fluorophenyl}-2,6-difluorobenzenesulfonamide

HRID 239254Notes

Reaction equation

HRID 239254 reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([CH2:8][C:9]([C:11]2[C:12]([F:29])=[C:13]([NH:17][S:18]([C:21]3[C:26]([F:27])=[CH:25][CH:24]=[CH:23][C:22]=3[F:28])(=[O:20])=[O:19])[CH:14]=[CH:15][CH:16]=2)=O)[CH:5]=[CH:4][N:3]=1.C1C(=O)N(Br)C(=O)C1.[O:38]1[CH2:43][CH2:42][CH:41]([C:44](=[S:46])[NH2:45])[CH2:40][CH2:39]1.O>CC(N(C)C)=O>[Cl:1][C:2]1[N:7]=[C:6]([C:8]2[S:46][C:44]([CH:41]3[CH2:42][CH2:43][O:38][CH2:39][CH2:40]3)=[N:45][C:9]=2[C:11]2[C:12]([F:29])=[C:13]([NH:17][S:18]([C:21]3[C:26]([F:27])=[CH:25][CH:24]=[CH:23][C:22]=3[F:28])(=[O:20])=[O:19])[CH:14]=[CH:15][CH:16]=2)[CH:5]=[CH:4][N:3]=1

Participants

6

Reactant 4

HCID 962WaterHCID 67184N-bromobutanimideHCID 13197204Oxane-4-carbothioamideHCID 57989720N-(3-(2-(2-chloropyriMidin-4-yl)acetyl)-2-fluorophenyl)-2,6-difluorobenzenesulfonamide

Product 1

HCID 57990032N-{3-[5-(2-Chloro-4-pyrimidinyl)-2-(tetrahydro-2H-pyran-4-yl)-1,3-thiazol-4-yl]-2-fluorophenyl}-2,6-difluorobenzenesulfonamideYield 51.9%

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent

Procedure

To a solution of N-{3-[(2-chloro-4-pyrimidinyl)acetyl]-2-fluorophenyl}-2,6-difluorobenzenesulfonamide (5.00 g, 11.3 mmol) in DMA (47.2 mL) was added NBS (2.115 g, 11.88 mmol). The reaction stirred 30 min at rt and then tetrahydro-2H-pyran-4-carbothioamide (2.137 g, 14.71 mmol) was added. The reaction stirred 16 h at rt. The reaction mixture was poured into water (500 mL), causing precipitation of a solid. The solid was collected by vacuum filtration, re-dissolved in EtOAc (200 mL), and concentrated onto silica gel. Purification by ISCO chromatography (20 to 100% EtOAc:hexanes) afforded the title compound (3.58 g, 5.87 mmol, 51.9% yield) as a light orange solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 10.93 (s, 1H), 8.55 (d, J=5.3 Hz, 1H), 7.58-7.79 (m, 1H), 7.38-7.52 (m, 2H), 7.33 (t, J=7.9 Hz, 1H), 7.24 (t, J=9.1 Hz, 2H), 6.87 (d, J=5.1 Hz, 1H), 3.84-4.00 (m, 2H), 3.41-3.54 (m, 2H), 3.31-3.39 (m, 1H), 1.92-2.13 (m, 2H), 1.66-1.91 (m, 2H); m/z (ESI): 567.03 [M+H]+.

Workup

  1. stirringThe reaction stirred 16 h at rt
  2. customprecipitation of a solid
  3. filtrationThe solid was collected by vacuum filtration
  4. dissolutionre-dissolved in EtOAc (200 mL)
  5. concentrationconcentrated onto silica gel
  6. customPurification by ISCO chromatography (20 to 100% EtOAc:hexanes)

Sources & evidence

ORD record
ord-1a732f0323904e9abd885d6c6e1b5a49
Source dataset
uspto-grants-2014_02
Patent number
US08642759B2

Reaction notes

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