2-Bromoethanol → HCID 10084631, compound

Participants

Reaction Steps

4-(Piperidin-4-yl)-2H-isoquinolin-1-one hydrochloride (0.8 g) obtained in Example 31, potassium carbonate (2.0 g) and 2-bromoethanol (1.88 g) were dissolved in 2-butanone and water (1 mL), and the mixture was heated under reflux for 4 hrs. After the completion of the reaction, the solvent was evaporated, and water was added to the obtained residue. The mixture was extracted with chloroform, the organic layer dried over magnesium sulfate. The solvent was evaporated, and the obtained residue was purified by silica gel column chromatography (chloroform:methanol=4:1+triethylamine 2%) to give 4-(1-(2-hydroxyethyl)piperidin-4-yl)-2H-isoquinolin-1-one (0.46 g) as white crystals.

Provenance & Evidence