Sodium hydride → N-(4-(1,3-benzodioxol-5-yl)-3-{2-[(5-bromo-2-pyrimidinyl)oxy]ethoxy}-1-methyl-1H-pyrazol-5-yl)-5-isopropyl-2-pyridinesulfonamide

HRID 1368597Notes

Reaction equation

HRID 1368597 reaction equation
[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3[C:11]([O:29][CH2:30][CH2:31][OH:32])=[N:12][N:13]([CH3:28])[C:14]=3[NH:15][S:16]([C:19]3[CH:24]=[CH:23][C:22]([CH:25]([CH3:27])[CH3:26])=[CH:21][N:20]=3)(=[O:18])=[O:17])=[CH:9][C:4]=2[O:3][CH2:2]1.[H-].[Na+].[Br:35][C:36]1[CH:37]=[N:38][C:39](Cl)=[N:40][CH:41]=1>C1COCC1.CC(N(C)C)=O>[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3[C:11]([O:29][CH2:30][CH2:31][O:32][C:39]4[N:40]=[CH:41][C:36]([Br:35])=[CH:37][N:38]=4)=[N:12][N:13]([CH3:28])[C:14]=3[NH:15][S:16]([C:19]3[CH:24]=[CH:23][C:22]([CH:25]([CH3:27])[CH3:26])=[CH:21][N:20]=3)(=[O:18])=[O:17])=[CH:9][C:4]=2[O:3][CH2:2]1

Participants

6

Reactant 3

HCID 24758Sodium hydrideHCID 6066655-Bromo-2-chloropyrimidineHCID 22281907HCID 22281907, compound

Product 1

HCID 9895261N-(4-(1,3-benzodioxol-5-yl)-3-{2-[(5-bromo-2-pyrimidinyl)oxy]ethoxy}-1-methyl-1H-pyrazol-5-yl)-5-isopropyl-2-pyridinesulfonamideYield 24.9%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 31374DimethylacetamideSolvent

Procedure

To a solution of N-[4-(1,3-benzodioxol-5-yl)-3-(2-hydroxyethoxy)-1-methyl-1H-pyrazol-5-yl]-5-isopropyl-2-pyridinesulfonamide (Example 43) (18 mg) in anhydrous THF (0.5 ml) at 0° C. and under an atmosphere of nitrogen was added sodium hydride (60% dispersion in oil, 3.3 mg) and the mixture was stirred for 5 minutes. To the mixture was added 5-bromo-2-chloropyrimidine (Liquid Crystals, 1993, 14(3), 741) (11.3 mg) in dimethylacetamide (0.1 ml). After stirring for 90 min, the reaction mixture was partitioned between ethyl acetate (3 ml) and saturated ammonium chloride solution (5 ml). The ethyl acetate layer was dried (MgSO4) and blown down under nitrogen to, afford a gummy residue. Purification of the residue by column chromatography on silica gel (5 g), eluting in an isocratic fashion with ethyl acetate:hexane (7:4) afforded the title compound as a white solid (6 mg) after freeze drying from t-butanol.

Workup

  1. stirringAfter stirring for 90 min
  2. customthe reaction mixture was partitioned between ethyl acetate (3 ml) and saturated ammonium chloride solution (5 ml)
  3. dry with materialThe ethyl acetate layer was dried (MgSO4)
  4. customafford a gummy residue
  5. customPurification of the residue by column chromatography on silica gel (5 g)
  6. washeluting in an isocratic fashion with ethyl acetate:hexane (7:4)

Sources & evidence

ORD record
ord-81ee8fb334684acebea6d8fd7508fbe0
Source dataset
uspto-grants-2003_06
Patent number
US06573270B1

Reaction notes

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