Hydrochloric Acid → HCID 10271081, compound

Participants

Reaction Steps

To a solution of tert-butyl[6-(2-amino-2-oxoethoxy)-2-isobutyl-1-oxo-4-phenyl-1,2-dihydro-3-isoquinolinyl]methylcarbamate (0.38 g, 0.8 mmol) in ethyl acetate (5 mL) was added a solution of 4N hydrogen chloride in ethyl acetate (5 mL) and the obtained solution was stirred at room temperature for 2 h. The reaction, mixture was concentrated under reduced pressure, and the residue was suspended in 1N aqueous sodium hydroxide solution. The suspension was stirred at room temperature for 10 min, and the reaction mixture was poured into water and extracted with ethyl acetate. The extract was washed with brine, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The precipitated crystals were recrystallized from ethyl acetate-diisopropyl ether to give 2-[[3-(aminomethyl)-2-isobutyl-1-oxo-4-phenyl-1,2-dihydro-6-isoquinolinyl]oxy]acetamide (0.19 g, 63.3%) as crystals.

Provenance & Evidence