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

HRID 590208Notes

Reaction equation

HRID 590208 reaction equation
[CH3:1][S:2](Cl)(=[O:4])=[O:3].[Cl:6][C:7]1[N:12]=[C:11]([C:13]2[S:17][C:16]([N:18]3[CH2:23][CH2:22][NH:21][CH2:20][CH2:19]3)=[N:15][C:14]=2[C:24]2[C:25]([F:42])=[C:26]([NH:30][S:31]([C:34]3[CH:39]=[C:38]([F:40])[CH:37]=[CH:36][C:35]=3[F:41])(=[O:33])=[O:32])[CH:27]=[CH:28][CH:29]=2)[CH:10]=[CH:9][N:8]=1>C(Cl)Cl>[Cl:6][C:7]1[N:12]=[C:11]([C:13]2[S:17][C:16]([N:18]3[CH2:23][CH2:22][N:21]([S:2]([CH3:1])(=[O:4])=[O:3])[CH2:20][CH2:19]3)=[N:15][C:14]=2[C:24]2[C:25]([F:42])=[C:26]([NH:30][S:31]([C:34]3[CH:39]=[C:38]([F:40])[CH:37]=[CH:36][C:35]=3[F:41])(=[O:33])=[O:32])[CH:27]=[CH:28][CH:29]=2)[CH:10]=[CH:9][N:8]=1

Participants

4

Reactant 2

HCID 31297Methanesulfonyl chlorideHCID 57989746N-{3-[5-(2-Chloro-4-pyrimidinyl)-2-(1-piperazinyl)-1,3-thiazol-4-yl]-2-fluorophenyl}-2,5-difluorobenzenesulfonamide

Product 1

HCID 57989647N-(3-{5-(2-Chloro-4-pyrimidinyl)-2-[4-(methylsulfonyl)-1-piperazinyl]-1,3-thiazol-4-yl}-2-fluorophenyl)-2,5-difluorobenzenesulfonamideYield 32.9%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Methanesulfonyl chloride (0.05 mL, 0.7 mmol) was added to a stirring solution of N-{3-[5-(2-chloro-4-pyrimidinyl)-2-(1-piperazinyl)-1,3-thiazol-4-yl]-2-fluorophenyl}-2,5-difluorobenzenesulfonamide (0.40 g, 0.66 mmol) and TEA (0.32 mL, 2.3 mmol) in DCM (10 mL) at rt. LCMS analysis indicated clean conversion to product. The reaction was quenched with water and the whole was extracted with DCM. The combined organic extracts were dried over MgSO4, filtered, and the filtrate was concentrated onto silica gel. Purification by flash chromatography afforded the title compound of Step D (0.14 g, 30% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 10.80 (s, 1H), 8.34 (d, J=5.5 Hz, 1H), 7.25-7.63 (m, 5H), 6.50 (d, J=5.3 Hz, 1H), 3.69 (br. s., 4H), 3.27 (br. s., 4H), 2.93 (s, 3H).

Workup

  1. customThe reaction was quenched with water
  2. extractionthe whole was extracted with DCM
  3. dry with materialThe combined organic extracts were dried over MgSO4
  4. filtrationfiltered
  5. concentrationthe filtrate was concentrated onto silica gel
  6. customPurification by flash chromatography

Sources & evidence

ORD record
ord-fb143c1502f7467ea2f20901b40d6b42
Source dataset
uspto-grants-2016_01
Patent number
US09233956B2

Reaction notes

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