Sodium hydride → N-{6-[2-(5-Bromo-pyrimidin-2-yloxy)-ethoxy]-2-propyl-5-p-tolyl-pyrimidin-4-yl}-4-tert-butyl-benzenesulfonamide

関与物質

反応手順

To a suspension of sodium hydride (0.25 g) in tetrahydrofuran (5 ml) is added dropwise a solution of 4-tert-butyl-N-[6-(2-hydroxyethoxy)-5-(4-methylphenyl)-2-n-propylpyrimidin-4-yl]benzenesulfonamide (1.00 g) in dimethylacetamide (3 ml) and tetrahydrofuran (10 ml) at room temperature, and thereto is added 2-chloro-5-bromopyrimidine (0.56 g), and the mixture is stirred at room temperature for 2.5 hours. The reaction mixture is acidified with ice-cold diluted hydrochloric acid, and extracted with ethyl acetate. The extract is washed, dried, and evaporated to remove the solvent. The resulting oily product is purified by silica gel column chromatography (solvent; chloroform), and crystallized from n-hexane to give 4-tert-butyl-N-[6-{2-(5-bromopyrimidin-2-yloxy)ethoxy}-5-(4-methylphenyl)-2-n-propylpyrimidin-4-yl]benzenesulfonamide (1.21 g) as crystals.

情報源と証拠