Hydrochloric Acid → 4-[2-(5-bromopyrimidin-2-yloxy)-1,1-dimethylethyl]-N-{6-[2-(5-bromopyrimidin-2-yloxy)ethoxy]-5-(4-methylphenyl)pyrimidin-4-yl}benzenesulfonamide

HRID 2299

Reaction equation

HRID 2299 reaction equation
[H-].[Na+].[OH:3][CH2:4][C:5]([C:8]1[CH:13]=[CH:12][C:11]([S:14]([NH:17][C:18]2[C:23]([C:24]3[CH:29]=[CH:28][C:27]([CH3:30])=[CH:26][CH:25]=3)=[C:22]([O:31][CH2:32][CH2:33][OH:34])[N:21]=[CH:20][N:19]=2)(=[O:16])=[O:15])=[CH:10][CH:9]=1)([CH3:7])[CH3:6].[Br:35][C:36]1[CH:37]=[N:38][C:39](Cl)=[N:40][CH:41]=1.Cl>CC(N(C)C)=O.O1CCCC1>[Br:35][C:36]1[CH:37]=[N:38][C:39]([O:3][CH2:4][C:5]([C:8]2[CH:13]=[CH:12][C:11]([S:14]([NH:17][C:18]3[C:23]([C:24]4[CH:25]=[CH:26][C:27]([CH3:30])=[CH:28][CH:29]=4)=[C:22]([O:31][CH2:32][CH2:33][O:34][C:39]4[N:40]=[CH:41][C:36]([Br:35])=[CH:37][N:38]=4)[N:21]=[CH:20][N:19]=3)(=[O:15])=[O:16])=[CH:10][CH:9]=2)([CH3:7])[CH3:6])=[N:40][CH:41]=1

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 24758Sodium hydrideHCID 6066655-Bromo-2-chloropyrimidineHCID 196895154-(2-hydroxy-1,1-dimethylethyl)-N-{6-[2-hydroxyethoxy]-5-(4-methylphenyl)pyrimidin-4-yl}benzenesulfonamide

Product 1

HCID 196895184-[2-(5-bromopyrimidin-2-yloxy)-1,1-dimethylethyl]-N-{6-[2-(5-bromopyrimidin-2-yloxy)ethoxy]-5-(4-methylphenyl)pyrimidin-4-yl}benzenesulfonamideYield 33.8%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolvent2×HCID 31374DimethylacetamideSolvent2×

Procedure

To a suspension of sodium hydride (65 mg) in dimethylacetamide (0.5 ml) and tetrahydrofuran (0.5 ml) is added dropwise a solution of 4-(2-hydroxy-1,1-dimethylethyl)-N-{6-[2-hydroxyethoxy]-5-(4-methylphenyl)pyrimidin-4-yl}benzenesulfonamide (135 mg) in dimethylacetamide (2 ml) and THF (2 ml) solution over period of 5 minutes at room temperature, and thereto is added 5-bromo-2-chloropyrimidine (399 mg). The mixture is stirred at room temperature for 6 days. The reaction mixture is acidified with cold diluted hydrochloric acid, and extracted with ethyl acetate. The organic layer is washed with water and saturated brine, dried over anhydrous sodium sulfate, and evaporated to remove the solvent. The oily residue is purified by silica gel column chromatography (solvent; chloroform/ethyl acetate=100:1), and evaporated to remove the solvent. The resulting crude crystals are recrystallized from methylene chloride/isopropyl ether to give 4-[2-(5-bromopyrimidin-2-yloxy)-1,1-dimethylethyl]-N-{6-[2-(5-bromopyrimidin-2-yloxy)ethoxy]-5-(4-methylphenyl)pyrimidin-4-yl}benzenesulfonamide (77 mg) as colorless crystals.

Workup

  1. extractionextracted with ethyl acetate
  2. washThe organic layer is washed with water and saturated brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. customevaporated
  5. customto remove the solvent
  6. customThe oily residue is purified by silica gel column chromatography (solvent; chloroform/ethyl acetate=100:1)
  7. customevaporated
  8. customto remove the solvent
  9. customThe resulting crude crystals are recrystallized from methylene chloride/isopropyl ether

Sources & evidence

ORD record
ord-d5b502a9c1d04da5bcd8e0a9c3285742
Source dataset
uspto-grants-1998_03
Patent number
US05728706

Linked notes

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