反应详情

Under ice-cooling, potassium carbonate (0.19 g) and tert-butyl 2-(5-(bromomethyl)-2-(methoxymethoxy)benzamido)-4-phenylbenzoate (0.12 g) were sequentially added to an acetone (1.8 mL) suspension of 1-propylpiperazine dihydrochloride (0.13 g), followed by stirring at room temperature for 5 hours and 30 minutes. The solvent was evaporated under reduced pressure, and a saturated aqueous solution of sodium bicarbonate and chloroform were added to the residue. The organic layer was separated and dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography [Kanto Chemical Co., Inc., silica gel 60 (spherical), eluent: 100-90% chloroform/methanol] to obtain 0.088 g of tert-butyl 2-(2-(methoxymethoxy)-5-((4-propylpiperazin-1-yl)methyl)benzamido)-4-phenylbenzoate.

1. temperatureUnder ice-cooling
2. customThe solvent was evaporated under reduced pressure
3. additiona saturated aqueous solution of sodium bicarbonate and chloroform were added to the residue
4. customThe organic layer was separated
5. dry with materialdried over anhydrous sodium sulfate
6. customthe solvent was evaporated under reduced pressure
7. customThe obtained residue was purified by silica gel column chromatography [Kanto Chemical Co., Inc., silica gel 60 (spherical), eluent: 100-90% chloroform/methanol]