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

HRID 239281Notes

Reaction equation

HRID 239281 reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([C:8]2[S:12][C:11]([C:13]([CH3:16])([CH3:15])[CH3:14])=[N:10][C:9]=2[C:17]2[CH:18]=[CH:19][C:20]([F:24])=[C:21]([CH:23]=2)[NH2:22])[CH:5]=[CH:4][N:3]=1.N1C=CC=CC=1.[F:31][C:32]1[CH:37]=[CH:36][CH:35]=[C:34]([F:38])[C:33]=1[S:39](Cl)(=[O:41])=[O:40]>C(Cl)Cl>[Cl:1][C:2]1[N:7]=[C:6]([C:8]2[S:12][C:11]([C:13]([CH3:16])([CH3:15])[CH3:14])=[N:10][C:9]=2[C:17]2[CH:18]=[CH:19][C:20]([F:24])=[C:21]([NH:22][S:39]([C:33]3[C:34]([F:38])=[CH:35][CH:36]=[CH:37][C:32]=3[F:31])(=[O:41])=[O:40])[CH:23]=2)[CH:5]=[CH:4][N:3]=1

Participants

5

Reactant 3

HCID 1049PyridineHCID 27342712,6-Difluorobenzenesulfonyl chlorideHCID 579897645-[5-(2-Chloro-4-pyrimidinyl)-2-(1,1-dimethylethyl)-1,3-thiazol-4-yl]-2-fluoroaniline

Product 1

HCID 86636578N-{5-[5-(2-Chloro-4-pyrimidinyl)-2-(1,1-dimethylethyl)-1,3-thiazol-4-yl]-2-fluorophenyl}-2,6-difluorobenzenesulfonamideYield 62.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Conditions

Temperature
0 °C

Procedure

To a solution of 5-[5-(2-chloro-4-pyrimidinyl)-2-(1,1-dimethylethyl)-1,3-thiazol-4-yl]-2-fluoroaniline (13 g, 36 mmol) in DCM (100 mL) was added pyridine (8.5 g, 107 mmol). The mixture was cooled to 0° C. 2,6-Difluorobenzene-1-sulfonyl chloride (9.1 g, 43 mmol) in DCM (20 mL) was added dropwise to the mixture. The reaction was stirred at rt over night. Then the reaction was washed with water (100 mL), and extracted with DCM (2×200 mL). The organic layer was washed with 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 (12 g, 62.2% yield, two batches combined). 1H NMR (400 MHz, DMSO-d6) δ ppm 10.95-11.05 (br, 1H), 8.54 (d, J=5.2 Hz, 1H), 7.67-7.79 (m, 1H), 7.45-7.50 (m, 2H), 7.22-7.37 (m, 3H), 7.10 (d, J=5.2 Hz, 1H), 1.42 (s, 9H). MS (ES+): 539 [M+H]+.

Workup

  1. washThen the reaction was washed with water (100 mL)
  2. extractionextracted with DCM (2×200 mL)
  3. washThe organic layer was washed with 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-4932ad2726d94b298467b0cdaab42757
Source dataset
uspto-grants-2014_02
Patent number
US08642759B2

Reaction notes

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