Sodium hydride → 4-(tert-butyl)-N-[3-{2-[(5-fluoro-2-pyrimidinyl)oxy]ethoxy}-1-methyl-4-(4-methylphenyl)-1H-pyrazol-5-yl]benzenesulfonamide

HRID 1062729Notes

Reaction equation

HRID 1062729 reaction equation
[C:1]([C:5]1[CH:10]=[CH:9][C:8]([S:11]([NH:14][C:15]2[N:19]([CH3:20])[N:18]=[C:17]([O:21][CH2:22][CH2:23][OH:24])[C:16]=2[C:25]2[CH:30]=[CH:29][C:28]([CH3:31])=[CH:27][CH:26]=2)(=[O:13])=[O:12])=[CH:7][CH:6]=1)([CH3:4])([CH3:3])[CH3:2].[H-].[Na+].Cl[C:35]1[N:40]=[CH:39][C:38]([F:41])=[CH:37][N:36]=1.[Cl-].[NH4+]>O1CCCC1.CC(N(C)C)=O.C(OCC)(=O)C>[C:1]([C:5]1[CH:6]=[CH:7][C:8]([S:11]([NH:14][C:15]2[N:19]([CH3:20])[N:18]=[C:17]([O:21][CH2:22][CH2:23][O:24][C:35]3[N:40]=[CH:39][C:38]([F:41])=[CH:37][N:36]=3)[C:16]=2[C:25]2[CH:30]=[CH:29][C:28]([CH3:31])=[CH:27][CH:26]=2)(=[O:12])=[O:13])=[CH:9][CH:10]=1)([CH3:4])([CH3:3])[CH3:2]

Participants

8

Reactant 4

HCID 24758Sodium hydrideHCID 25517Ammonium ChlorideHCID 5834662-Chloro-5-fluoropyrimidineHCID 222820434-(tert-butyl)-N-[3-(2-hydroxyethoxy)-1-methyl-4-(4-methylphenyl)-1H-pyrazol-5-yl]benzenesulfonamide

Product 1

HCID 222819924-(tert-butyl)-N-[3-{2-[(5-fluoro-2-pyrimidinyl)oxy]ethoxy}-1-methyl-4-(4-methylphenyl)-1H-pyrazol-5-yl]benzenesulfonamideYield 12.4%

Reagents, catalysts & solvents 3

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolventHCID 31374DimethylacetamideSolvent

Procedure

To 4-(tert-butyl)-N-[3-(2-hydroxyethoxy)-1-methyl-4-(4-methylphenyl)-1H-pyrazol-5-yl]benzenesulfonamide (Example 2, 126 mg) in tetrahydrofuran (5 ml) at room temperature under an atmosphere of nitrogen was added sodium hydride (60% dispersion in oil, 34 mg) and the reaction mixture was stirred for 5 minutes. To the reaction mixture was added a solution of 2-chloro-5-fluoropyrimidine (50 mg) in dimethyl acetamide (1 ml) and the reaction was stirred for a further 16 hours. The reaction was poured cautiously into a stirred mixture of saturated aqueous ammonium chloride solution (10 ml) and ethyl acetate (10 ml). The organic fraction was separated, dried over magnesium sulphate, filtered and concentrated under reduced pressure. The residue was purified by preparative HPLC on a 5μ ODS Phenomenex Magellen™ column with gradient elution of acetonitrile (5% to 95%) and 0.1M NH4OAc (95% to 5%) to yield the title compound as a white solid (19 mg).

Workup

  1. stirringthe reaction was stirred for a further 16 hours
  2. customThe organic fraction was separated
  3. dry with materialdried over magnesium sulphate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by preparative HPLC on a 5μ ODS Phenomenex Magellen™ column with gradient elution of acetonitrile (5% to 95%) and 0.1M NH4OAc (95% to 5%)

Sources & evidence

ORD record
ord-2f9778c267eb46c29ba3397b600632e1
Source dataset
uspto-grants-2005_11
Patent number
US06962923B2

Reaction notes

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